|
timing belt
My brother just bought a 1987 Honda Accord with the timing belt shot.
What are the chances the valvetrain was ruined and how hard is this thing to change? |
Re: timing belt
Chances are pretty good that it will be ok. 86-89 accords are not supposed
to bend valves.... but I have seen them do it every now and then. "Robert Davis" <rkd1157@yahoo.com> wrote in message news:88eeeee0.0401171340.2c5cb63a@posting.google.c om... > My brother just bought a 1987 Honda Accord with the timing belt shot. > What are the chances the valvetrain was ruined and how hard is this > thing to change? |
Re: timing belt
Chances are pretty good that it will be ok. 86-89 accords are not supposed
to bend valves.... but I have seen them do it every now and then. "Robert Davis" <rkd1157@yahoo.com> wrote in message news:88eeeee0.0401171340.2c5cb63a@posting.google.c om... > My brother just bought a 1987 Honda Accord with the timing belt shot. > What are the chances the valvetrain was ruined and how hard is this > thing to change? |
Re: timing belt
Chances are pretty good that it will be ok. 86-89 accords are not supposed
to bend valves.... but I have seen them do it every now and then. "Robert Davis" <rkd1157@yahoo.com> wrote in message news:88eeeee0.0401171340.2c5cb63a@posting.google.c om... > My brother just bought a 1987 Honda Accord with the timing belt shot. > What are the chances the valvetrain was ruined and how hard is this > thing to change? |
Re: timing belt
Chances are pretty good that it will be ok. 86-89 accords are not supposed
to bend valves.... but I have seen them do it every now and then. "Robert Davis" <rkd1157@yahoo.com> wrote in message news:88eeeee0.0401171340.2c5cb63a@posting.google.c om... > My brother just bought a 1987 Honda Accord with the timing belt shot. > What are the chances the valvetrain was ruined and how hard is this > thing to change? |
Re: timing belt
In article <100jik5jic0de45@corp.supernews.com>, Jafir Elkurd
<jafir@nospam.no.spam.hotpop.com> wrote: > Chances are pretty good that it will be ok. 86-89 accords are not supposed > to bend valves.... but I have seen them do it every now and then. > > > "Robert Davis" <rkd1157@yahoo.com> wrote in message > news:88eeeee0.0401171340.2c5cb63a@posting.google.c om... > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > What are the chances the valvetrain was ruined and how hard is this > > thing to change? im not sure what kind of heads they had in those years but if he sayes they are non-interference them maybe you are ok, as for how difficult the belt is to replace it can be done at home but if you do not know what you are doing it will take all day and be quite frustrating so that would be your call on whether or not u want to go through that. most oil and lube/ muffler shops will do it fairly inexpensivly tho. i would talk to a honda tech or mechanic about whether or not your head is an interference head or not just to make sure. Andrew |
Re: timing belt
In article <100jik5jic0de45@corp.supernews.com>, Jafir Elkurd
<jafir@nospam.no.spam.hotpop.com> wrote: > Chances are pretty good that it will be ok. 86-89 accords are not supposed > to bend valves.... but I have seen them do it every now and then. > > > "Robert Davis" <rkd1157@yahoo.com> wrote in message > news:88eeeee0.0401171340.2c5cb63a@posting.google.c om... > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > What are the chances the valvetrain was ruined and how hard is this > > thing to change? im not sure what kind of heads they had in those years but if he sayes they are non-interference them maybe you are ok, as for how difficult the belt is to replace it can be done at home but if you do not know what you are doing it will take all day and be quite frustrating so that would be your call on whether or not u want to go through that. most oil and lube/ muffler shops will do it fairly inexpensivly tho. i would talk to a honda tech or mechanic about whether or not your head is an interference head or not just to make sure. Andrew |
Re: timing belt
In article <100jik5jic0de45@corp.supernews.com>, Jafir Elkurd
<jafir@nospam.no.spam.hotpop.com> wrote: > Chances are pretty good that it will be ok. 86-89 accords are not supposed > to bend valves.... but I have seen them do it every now and then. > > > "Robert Davis" <rkd1157@yahoo.com> wrote in message > news:88eeeee0.0401171340.2c5cb63a@posting.google.c om... > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > What are the chances the valvetrain was ruined and how hard is this > > thing to change? im not sure what kind of heads they had in those years but if he sayes they are non-interference them maybe you are ok, as for how difficult the belt is to replace it can be done at home but if you do not know what you are doing it will take all day and be quite frustrating so that would be your call on whether or not u want to go through that. most oil and lube/ muffler shops will do it fairly inexpensivly tho. i would talk to a honda tech or mechanic about whether or not your head is an interference head or not just to make sure. Andrew |
Re: timing belt
In article <100jik5jic0de45@corp.supernews.com>, Jafir Elkurd
<jafir@nospam.no.spam.hotpop.com> wrote: > Chances are pretty good that it will be ok. 86-89 accords are not supposed > to bend valves.... but I have seen them do it every now and then. > > > "Robert Davis" <rkd1157@yahoo.com> wrote in message > news:88eeeee0.0401171340.2c5cb63a@posting.google.c om... > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > What are the chances the valvetrain was ruined and how hard is this > > thing to change? im not sure what kind of heads they had in those years but if he sayes they are non-interference them maybe you are ok, as for how difficult the belt is to replace it can be done at home but if you do not know what you are doing it will take all day and be quite frustrating so that would be your call on whether or not u want to go through that. most oil and lube/ muffler shops will do it fairly inexpensivly tho. i would talk to a honda tech or mechanic about whether or not your head is an interference head or not just to make sure. Andrew |
Re: timing belt
In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >,
rkd1157@yahoo.com (Robert Davis) wrote: > My brother just bought a 1987 Honda Accord with the timing belt shot. > What are the chances the valvetrain was ruined and how hard is this > thing to change? We could only guess. The only way to be sure is for you or a mechanic to place a new timing belt on it and start it up. If a mechanic does it, ask him or her to hook it up to the computerized testing equipment that he has and determine whether any damage was or was not done to the valvetrain. If you do it, start it up and let it idle--if it sounds ok--take it for a short ride around the block. If it passes that test--go for a longer ride on a road that will allow you to get it up to about 50 or 60 miles per hour. If it passes that test--it means that no damage was done to the valvetrain. You should advise your brother that in the future--he should NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >,
rkd1157@yahoo.com (Robert Davis) wrote: > My brother just bought a 1987 Honda Accord with the timing belt shot. > What are the chances the valvetrain was ruined and how hard is this > thing to change? We could only guess. The only way to be sure is for you or a mechanic to place a new timing belt on it and start it up. If a mechanic does it, ask him or her to hook it up to the computerized testing equipment that he has and determine whether any damage was or was not done to the valvetrain. If you do it, start it up and let it idle--if it sounds ok--take it for a short ride around the block. If it passes that test--go for a longer ride on a road that will allow you to get it up to about 50 or 60 miles per hour. If it passes that test--it means that no damage was done to the valvetrain. You should advise your brother that in the future--he should NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >,
rkd1157@yahoo.com (Robert Davis) wrote: > My brother just bought a 1987 Honda Accord with the timing belt shot. > What are the chances the valvetrain was ruined and how hard is this > thing to change? We could only guess. The only way to be sure is for you or a mechanic to place a new timing belt on it and start it up. If a mechanic does it, ask him or her to hook it up to the computerized testing equipment that he has and determine whether any damage was or was not done to the valvetrain. If you do it, start it up and let it idle--if it sounds ok--take it for a short ride around the block. If it passes that test--go for a longer ride on a road that will allow you to get it up to about 50 or 60 miles per hour. If it passes that test--it means that no damage was done to the valvetrain. You should advise your brother that in the future--he should NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >,
rkd1157@yahoo.com (Robert Davis) wrote: > My brother just bought a 1987 Honda Accord with the timing belt shot. > What are the chances the valvetrain was ruined and how hard is this > thing to change? We could only guess. The only way to be sure is for you or a mechanic to place a new timing belt on it and start it up. If a mechanic does it, ask him or her to hook it up to the computerized testing equipment that he has and determine whether any damage was or was not done to the valvetrain. If you do it, start it up and let it idle--if it sounds ok--take it for a short ride around the block. If it passes that test--go for a longer ride on a road that will allow you to get it up to about 50 or 60 miles per hour. If it passes that test--it means that no damage was done to the valvetrain. You should advise your brother that in the future--he should NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
Computerized equipment to check for valvetrain damage?
"Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... > In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, > rkd1157@yahoo.com (Robert Davis) wrote: > > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > What are the chances the valvetrain was ruined and how hard is this > > thing to change? > > We could only guess. The only way to be sure is for you or a mechanic to > place a new timing belt on it and start it up. If a mechanic does it, ask > him or her to hook it up to the computerized testing equipment that he has > and determine whether any damage was or was not done to the valvetrain. If > you do it, start it up and let it idle--if it sounds ok--take it for a > short ride around the block. If it passes that test--go for a longer ride > on a road that will allow you to get it up to about 50 or 60 miles per > hour. If it passes that test--it means that no damage was done to the > valvetrain. You should advise your brother that in the future--he should > NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
Computerized equipment to check for valvetrain damage?
"Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... > In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, > rkd1157@yahoo.com (Robert Davis) wrote: > > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > What are the chances the valvetrain was ruined and how hard is this > > thing to change? > > We could only guess. The only way to be sure is for you or a mechanic to > place a new timing belt on it and start it up. If a mechanic does it, ask > him or her to hook it up to the computerized testing equipment that he has > and determine whether any damage was or was not done to the valvetrain. If > you do it, start it up and let it idle--if it sounds ok--take it for a > short ride around the block. If it passes that test--go for a longer ride > on a road that will allow you to get it up to about 50 or 60 miles per > hour. If it passes that test--it means that no damage was done to the > valvetrain. You should advise your brother that in the future--he should > NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
Computerized equipment to check for valvetrain damage?
"Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... > In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, > rkd1157@yahoo.com (Robert Davis) wrote: > > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > What are the chances the valvetrain was ruined and how hard is this > > thing to change? > > We could only guess. The only way to be sure is for you or a mechanic to > place a new timing belt on it and start it up. If a mechanic does it, ask > him or her to hook it up to the computerized testing equipment that he has > and determine whether any damage was or was not done to the valvetrain. If > you do it, start it up and let it idle--if it sounds ok--take it for a > short ride around the block. If it passes that test--go for a longer ride > on a road that will allow you to get it up to about 50 or 60 miles per > hour. If it passes that test--it means that no damage was done to the > valvetrain. You should advise your brother that in the future--he should > NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
Computerized equipment to check for valvetrain damage?
"Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... > In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, > rkd1157@yahoo.com (Robert Davis) wrote: > > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > What are the chances the valvetrain was ruined and how hard is this > > thing to change? > > We could only guess. The only way to be sure is for you or a mechanic to > place a new timing belt on it and start it up. If a mechanic does it, ask > him or her to hook it up to the computerized testing equipment that he has > and determine whether any damage was or was not done to the valvetrain. If > you do it, start it up and let it idle--if it sounds ok--take it for a > short ride around the block. If it passes that test--go for a longer ride > on a road that will allow you to get it up to about 50 or 60 miles per > hour. If it passes that test--it means that no damage was done to the > valvetrain. You should advise your brother that in the future--he should > NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd"
<jafir@nospam.no.spam.hotpop.com> wrote: > Computerized equipment to check for valvetrain damage? Great point. It might not tell the mechanic about valvetrain damage but it should reveal whether or not the engine now has serious problems that could have happened after the timing belt broke. > > "Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message > news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... > > In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, > > rkd1157@yahoo.com (Robert Davis) wrote: > > > > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > > What are the chances the valvetrain was ruined and how hard is this > > > thing to change? > > > > We could only guess. The only way to be sure is for you or a mechanic to > > place a new timing belt on it and start it up. If a mechanic does it, ask > > him or her to hook it up to the computerized testing equipment that he has > > and determine whether any damage was or was not done to the valvetrain. If > > you do it, start it up and let it idle--if it sounds ok--take it for a > > short ride around the block. If it passes that test--go for a longer ride > > on a road that will allow you to get it up to about 50 or 60 miles per > > hour. If it passes that test--it means that no damage was done to the > > valvetrain. You should advise your brother that in the future--he should > > NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd"
<jafir@nospam.no.spam.hotpop.com> wrote: > Computerized equipment to check for valvetrain damage? Great point. It might not tell the mechanic about valvetrain damage but it should reveal whether or not the engine now has serious problems that could have happened after the timing belt broke. > > "Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message > news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... > > In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, > > rkd1157@yahoo.com (Robert Davis) wrote: > > > > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > > What are the chances the valvetrain was ruined and how hard is this > > > thing to change? > > > > We could only guess. The only way to be sure is for you or a mechanic to > > place a new timing belt on it and start it up. If a mechanic does it, ask > > him or her to hook it up to the computerized testing equipment that he has > > and determine whether any damage was or was not done to the valvetrain. If > > you do it, start it up and let it idle--if it sounds ok--take it for a > > short ride around the block. If it passes that test--go for a longer ride > > on a road that will allow you to get it up to about 50 or 60 miles per > > hour. If it passes that test--it means that no damage was done to the > > valvetrain. You should advise your brother that in the future--he should > > NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd"
<jafir@nospam.no.spam.hotpop.com> wrote: > Computerized equipment to check for valvetrain damage? Great point. It might not tell the mechanic about valvetrain damage but it should reveal whether or not the engine now has serious problems that could have happened after the timing belt broke. > > "Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message > news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... > > In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, > > rkd1157@yahoo.com (Robert Davis) wrote: > > > > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > > What are the chances the valvetrain was ruined and how hard is this > > > thing to change? > > > > We could only guess. The only way to be sure is for you or a mechanic to > > place a new timing belt on it and start it up. If a mechanic does it, ask > > him or her to hook it up to the computerized testing equipment that he has > > and determine whether any damage was or was not done to the valvetrain. If > > you do it, start it up and let it idle--if it sounds ok--take it for a > > short ride around the block. If it passes that test--go for a longer ride > > on a road that will allow you to get it up to about 50 or 60 miles per > > hour. If it passes that test--it means that no damage was done to the > > valvetrain. You should advise your brother that in the future--he should > > NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd"
<jafir@nospam.no.spam.hotpop.com> wrote: > Computerized equipment to check for valvetrain damage? Great point. It might not tell the mechanic about valvetrain damage but it should reveal whether or not the engine now has serious problems that could have happened after the timing belt broke. > > "Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message > news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... > > In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, > > rkd1157@yahoo.com (Robert Davis) wrote: > > > > > My brother just bought a 1987 Honda Accord with the timing belt shot. > > > What are the chances the valvetrain was ruined and how hard is this > > > thing to change? > > > > We could only guess. The only way to be sure is for you or a mechanic to > > place a new timing belt on it and start it up. If a mechanic does it, ask > > him or her to hook it up to the computerized testing equipment that he has > > and determine whether any damage was or was not done to the valvetrain. If > > you do it, start it up and let it idle--if it sounds ok--take it for a > > short ride around the block. If it passes that test--go for a longer ride > > on a road that will allow you to get it up to about 50 or 60 miles per > > hour. If it passes that test--it means that no damage was done to the > > valvetrain. You should advise your brother that in the future--he should > > NOT buy a vehicle that has a timing belt that is "shot". |
Re: timing belt
On Tue, 20 Jan 2004 08:41:50 -0800, tomwilson@nospamhotmail.com (Tom
Wilson) wrote: >In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd" ><jafir@nospam.no.spam.hotpop.com> wrote: > >> Computerized equipment to check for valvetrain damage? > >Great point. It might not tell the mechanic about valvetrain damage but it >should reveal whether or not the engine now has serious problems that >could have happened after the timing belt broke. I used a factory scan tool when I worked for a Hyundai dealer. It could locate a "weak" cylinder by comparing crankshaft acceleration after every ignition occurrance. A bent valve would surely cause a compression loss and subsequent power loss at idle and could be picked up by such a diagnostic tool. |
Re: timing belt
On Tue, 20 Jan 2004 08:41:50 -0800, tomwilson@nospamhotmail.com (Tom
Wilson) wrote: >In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd" ><jafir@nospam.no.spam.hotpop.com> wrote: > >> Computerized equipment to check for valvetrain damage? > >Great point. It might not tell the mechanic about valvetrain damage but it >should reveal whether or not the engine now has serious problems that >could have happened after the timing belt broke. I used a factory scan tool when I worked for a Hyundai dealer. It could locate a "weak" cylinder by comparing crankshaft acceleration after every ignition occurrance. A bent valve would surely cause a compression loss and subsequent power loss at idle and could be picked up by such a diagnostic tool. |
Re: timing belt
On Tue, 20 Jan 2004 08:41:50 -0800, tomwilson@nospamhotmail.com (Tom
Wilson) wrote: >In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd" ><jafir@nospam.no.spam.hotpop.com> wrote: > >> Computerized equipment to check for valvetrain damage? > >Great point. It might not tell the mechanic about valvetrain damage but it >should reveal whether or not the engine now has serious problems that >could have happened after the timing belt broke. I used a factory scan tool when I worked for a Hyundai dealer. It could locate a "weak" cylinder by comparing crankshaft acceleration after every ignition occurrance. A bent valve would surely cause a compression loss and subsequent power loss at idle and could be picked up by such a diagnostic tool. |
Re: timing belt
On Tue, 20 Jan 2004 08:41:50 -0800, tomwilson@nospamhotmail.com (Tom
Wilson) wrote: >In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd" ><jafir@nospam.no.spam.hotpop.com> wrote: > >> Computerized equipment to check for valvetrain damage? > >Great point. It might not tell the mechanic about valvetrain damage but it >should reveal whether or not the engine now has serious problems that >could have happened after the timing belt broke. I used a factory scan tool when I worked for a Hyundai dealer. It could locate a "weak" cylinder by comparing crankshaft acceleration after every ignition occurrance. A bent valve would surely cause a compression loss and subsequent power loss at idle and could be picked up by such a diagnostic tool. |
Re: timing belt
Yeah, most OBD-II computerized cars would note this as a "misfire" on
cylinder whatever. But it would be up to the mechanic with a mechanical means (such as a differential cylinder pressure testing gauges) to check for cylinder leakage and determine where it is going. I've heard of customers calling and asking about hooking their car up to the computer to diagnose a break noise problem.... so I always have to tease people a little when I think they are talking about a magic computer ;-) <null_pointer@nowhere.com.net.edu.gov.de> wrote in message news:3m4r009f7d5aou90m6nc80h43vohf4mfjb@4ax.com... > On Tue, 20 Jan 2004 08:41:50 -0800, tomwilson@nospamhotmail.com (Tom > Wilson) wrote: > > >In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd" > ><jafir@nospam.no.spam.hotpop.com> wrote: > > > >> Computerized equipment to check for valvetrain damage? > > > >Great point. It might not tell the mechanic about valvetrain damage but it > >should reveal whether or not the engine now has serious problems that > >could have happened after the timing belt broke. > > I used a factory scan tool when I worked for a Hyundai dealer. It > could locate a "weak" cylinder by comparing crankshaft acceleration > after every ignition occurrance. A bent valve would surely cause a > compression loss and subsequent power loss at idle and could be picked > up by such a diagnostic tool. |
Re: timing belt
Yeah, most OBD-II computerized cars would note this as a "misfire" on
cylinder whatever. But it would be up to the mechanic with a mechanical means (such as a differential cylinder pressure testing gauges) to check for cylinder leakage and determine where it is going. I've heard of customers calling and asking about hooking their car up to the computer to diagnose a break noise problem.... so I always have to tease people a little when I think they are talking about a magic computer ;-) <null_pointer@nowhere.com.net.edu.gov.de> wrote in message news:3m4r009f7d5aou90m6nc80h43vohf4mfjb@4ax.com... > On Tue, 20 Jan 2004 08:41:50 -0800, tomwilson@nospamhotmail.com (Tom > Wilson) wrote: > > >In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd" > ><jafir@nospam.no.spam.hotpop.com> wrote: > > > >> Computerized equipment to check for valvetrain damage? > > > >Great point. It might not tell the mechanic about valvetrain damage but it > >should reveal whether or not the engine now has serious problems that > >could have happened after the timing belt broke. > > I used a factory scan tool when I worked for a Hyundai dealer. It > could locate a "weak" cylinder by comparing crankshaft acceleration > after every ignition occurrance. A bent valve would surely cause a > compression loss and subsequent power loss at idle and could be picked > up by such a diagnostic tool. |
Re: timing belt
Yeah, most OBD-II computerized cars would note this as a "misfire" on
cylinder whatever. But it would be up to the mechanic with a mechanical means (such as a differential cylinder pressure testing gauges) to check for cylinder leakage and determine where it is going. I've heard of customers calling and asking about hooking their car up to the computer to diagnose a break noise problem.... so I always have to tease people a little when I think they are talking about a magic computer ;-) <null_pointer@nowhere.com.net.edu.gov.de> wrote in message news:3m4r009f7d5aou90m6nc80h43vohf4mfjb@4ax.com... > On Tue, 20 Jan 2004 08:41:50 -0800, tomwilson@nospamhotmail.com (Tom > Wilson) wrote: > > >In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd" > ><jafir@nospam.no.spam.hotpop.com> wrote: > > > >> Computerized equipment to check for valvetrain damage? > > > >Great point. It might not tell the mechanic about valvetrain damage but it > >should reveal whether or not the engine now has serious problems that > >could have happened after the timing belt broke. > > I used a factory scan tool when I worked for a Hyundai dealer. It > could locate a "weak" cylinder by comparing crankshaft acceleration > after every ignition occurrance. A bent valve would surely cause a > compression loss and subsequent power loss at idle and could be picked > up by such a diagnostic tool. |
Re: timing belt
Yeah, most OBD-II computerized cars would note this as a "misfire" on
cylinder whatever. But it would be up to the mechanic with a mechanical means (such as a differential cylinder pressure testing gauges) to check for cylinder leakage and determine where it is going. I've heard of customers calling and asking about hooking their car up to the computer to diagnose a break noise problem.... so I always have to tease people a little when I think they are talking about a magic computer ;-) <null_pointer@nowhere.com.net.edu.gov.de> wrote in message news:3m4r009f7d5aou90m6nc80h43vohf4mfjb@4ax.com... > On Tue, 20 Jan 2004 08:41:50 -0800, tomwilson@nospamhotmail.com (Tom > Wilson) wrote: > > >In article <100p8ff4ormdi8d@corp.supernews.com>, "Jafir Elkurd" > ><jafir@nospam.no.spam.hotpop.com> wrote: > > > >> Computerized equipment to check for valvetrain damage? > > > >Great point. It might not tell the mechanic about valvetrain damage but it > >should reveal whether or not the engine now has serious problems that > >could have happened after the timing belt broke. > > I used a factory scan tool when I worked for a Hyundai dealer. It > could locate a "weak" cylinder by comparing crankshaft acceleration > after every ignition occurrance. A bent valve would surely cause a > compression loss and subsequent power loss at idle and could be picked > up by such a diagnostic tool. |
Re: timing belt
If by saying the timing belt is completely broken, cam shaft doesn't turn with
the crankshaft then yes you have major damage. All the 87 accords have interference engines. With luck you may not have broken a piston if it only turned a few degrees after breaking the belt but it most likely has bent valves at best. When you turn it over with the crank don't force it, you will just cause more damage. The safest thing to due is to remove the cam before trying to turn it over. If it turns over easily with the plugs removed tap on each valve and see if they bind if so it is at least head rebuild time. Let us know. On Mon, 19 Jan 2004 21:35:16 -0600, "Jafir Elkurd" <jafir@nospam.no.spam.hotpop.com> wrote: >Computerized equipment to check for valvetrain damage? > >"Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message >news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... >> In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, >> rkd1157@yahoo.com (Robert Davis) wrote: >> >> > My brother just bought a 1987 Honda Accord with the timing belt shot. >> > What are the chances the valvetrain was ruined and how hard is this >> > thing to change? >> >> We could only guess. The only way to be sure is for you or a mechanic to >> place a new timing belt on it and start it up. If a mechanic does it, ask >> him or her to hook it up to the computerized testing equipment that he has >> and determine whether any damage was or was not done to the valvetrain. If >> you do it, start it up and let it idle--if it sounds ok--take it for a >> short ride around the block. If it passes that test--go for a longer ride >> on a road that will allow you to get it up to about 50 or 60 miles per >> hour. If it passes that test--it means that no damage was done to the >> valvetrain. You should advise your brother that in the future--he should >> NOT buy a vehicle that has a timing belt that is "shot". > ***************** Thank You kgsAT@msbx.net To reply to this email please remove the AT after the kgs in the reply to address as shown above. |
Re: timing belt
If by saying the timing belt is completely broken, cam shaft doesn't turn with
the crankshaft then yes you have major damage. All the 87 accords have interference engines. With luck you may not have broken a piston if it only turned a few degrees after breaking the belt but it most likely has bent valves at best. When you turn it over with the crank don't force it, you will just cause more damage. The safest thing to due is to remove the cam before trying to turn it over. If it turns over easily with the plugs removed tap on each valve and see if they bind if so it is at least head rebuild time. Let us know. On Mon, 19 Jan 2004 21:35:16 -0600, "Jafir Elkurd" <jafir@nospam.no.spam.hotpop.com> wrote: >Computerized equipment to check for valvetrain damage? > >"Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message >news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... >> In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, >> rkd1157@yahoo.com (Robert Davis) wrote: >> >> > My brother just bought a 1987 Honda Accord with the timing belt shot. >> > What are the chances the valvetrain was ruined and how hard is this >> > thing to change? >> >> We could only guess. The only way to be sure is for you or a mechanic to >> place a new timing belt on it and start it up. If a mechanic does it, ask >> him or her to hook it up to the computerized testing equipment that he has >> and determine whether any damage was or was not done to the valvetrain. If >> you do it, start it up and let it idle--if it sounds ok--take it for a >> short ride around the block. If it passes that test--go for a longer ride >> on a road that will allow you to get it up to about 50 or 60 miles per >> hour. If it passes that test--it means that no damage was done to the >> valvetrain. You should advise your brother that in the future--he should >> NOT buy a vehicle that has a timing belt that is "shot". > ***************** Thank You kgsAT@msbx.net To reply to this email please remove the AT after the kgs in the reply to address as shown above. |
Re: timing belt
If by saying the timing belt is completely broken, cam shaft doesn't turn with
the crankshaft then yes you have major damage. All the 87 accords have interference engines. With luck you may not have broken a piston if it only turned a few degrees after breaking the belt but it most likely has bent valves at best. When you turn it over with the crank don't force it, you will just cause more damage. The safest thing to due is to remove the cam before trying to turn it over. If it turns over easily with the plugs removed tap on each valve and see if they bind if so it is at least head rebuild time. Let us know. On Mon, 19 Jan 2004 21:35:16 -0600, "Jafir Elkurd" <jafir@nospam.no.spam.hotpop.com> wrote: >Computerized equipment to check for valvetrain damage? > >"Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message >news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... >> In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, >> rkd1157@yahoo.com (Robert Davis) wrote: >> >> > My brother just bought a 1987 Honda Accord with the timing belt shot. >> > What are the chances the valvetrain was ruined and how hard is this >> > thing to change? >> >> We could only guess. The only way to be sure is for you or a mechanic to >> place a new timing belt on it and start it up. If a mechanic does it, ask >> him or her to hook it up to the computerized testing equipment that he has >> and determine whether any damage was or was not done to the valvetrain. If >> you do it, start it up and let it idle--if it sounds ok--take it for a >> short ride around the block. If it passes that test--go for a longer ride >> on a road that will allow you to get it up to about 50 or 60 miles per >> hour. If it passes that test--it means that no damage was done to the >> valvetrain. You should advise your brother that in the future--he should >> NOT buy a vehicle that has a timing belt that is "shot". > ***************** Thank You kgsAT@msbx.net To reply to this email please remove the AT after the kgs in the reply to address as shown above. |
Re: timing belt
If by saying the timing belt is completely broken, cam shaft doesn't turn with
the crankshaft then yes you have major damage. All the 87 accords have interference engines. With luck you may not have broken a piston if it only turned a few degrees after breaking the belt but it most likely has bent valves at best. When you turn it over with the crank don't force it, you will just cause more damage. The safest thing to due is to remove the cam before trying to turn it over. If it turns over easily with the plugs removed tap on each valve and see if they bind if so it is at least head rebuild time. Let us know. On Mon, 19 Jan 2004 21:35:16 -0600, "Jafir Elkurd" <jafir@nospam.no.spam.hotpop.com> wrote: >Computerized equipment to check for valvetrain damage? > >"Tom Wilson" <tomwilson@nospamhotmail.com> wrote in message >news:tomwilson-1901041014230001@pm1-broad-108.snlo.dialup.fix.net... >> In article <88eeeee0.0401171340.2c5cb63a@posting.google.com >, >> rkd1157@yahoo.com (Robert Davis) wrote: >> >> > My brother just bought a 1987 Honda Accord with the timing belt shot. >> > What are the chances the valvetrain was ruined and how hard is this >> > thing to change? >> >> We could only guess. The only way to be sure is for you or a mechanic to >> place a new timing belt on it and start it up. If a mechanic does it, ask >> him or her to hook it up to the computerized testing equipment that he has >> and determine whether any damage was or was not done to the valvetrain. If >> you do it, start it up and let it idle--if it sounds ok--take it for a >> short ride around the block. If it passes that test--go for a longer ride >> on a road that will allow you to get it up to about 50 or 60 miles per >> hour. If it passes that test--it means that no damage was done to the >> valvetrain. You should advise your brother that in the future--he should >> NOT buy a vehicle that has a timing belt that is "shot". > ***************** Thank You kgsAT@msbx.net To reply to this email please remove the AT after the kgs in the reply to address as shown above. |
Re: timing belt
KG wrote:
> > If by saying the timing belt is completely broken, cam shaft doesn't turn > with the crankshaft then yes you have major damage. All the 87 accords > have interference engines. With luck you may not have broken a piston if > it only turned a few degrees after breaking the belt but it most likely > has bent valves at best. When you turn it over with the crank don't > force it, you will just cause more damage. The safest thing to due is to > remove the cam before trying to turn it over. If it turns over easily > with the plugs removed tap on each valve 0and see if they bind if so it > is at least head rebuild time. Let us know. I believe that it would be easier to just check the valve clearances. Any valves that are bent will have excessive clearance as they will not seat correctly. Eric |
Re: timing belt
KG wrote:
> > If by saying the timing belt is completely broken, cam shaft doesn't turn > with the crankshaft then yes you have major damage. All the 87 accords > have interference engines. With luck you may not have broken a piston if > it only turned a few degrees after breaking the belt but it most likely > has bent valves at best. When you turn it over with the crank don't > force it, you will just cause more damage. The safest thing to due is to > remove the cam before trying to turn it over. If it turns over easily > with the plugs removed tap on each valve 0and see if they bind if so it > is at least head rebuild time. Let us know. I believe that it would be easier to just check the valve clearances. Any valves that are bent will have excessive clearance as they will not seat correctly. Eric |
Re: timing belt
KG wrote:
> > If by saying the timing belt is completely broken, cam shaft doesn't turn > with the crankshaft then yes you have major damage. All the 87 accords > have interference engines. With luck you may not have broken a piston if > it only turned a few degrees after breaking the belt but it most likely > has bent valves at best. When you turn it over with the crank don't > force it, you will just cause more damage. The safest thing to due is to > remove the cam before trying to turn it over. If it turns over easily > with the plugs removed tap on each valve 0and see if they bind if so it > is at least head rebuild time. Let us know. I believe that it would be easier to just check the valve clearances. Any valves that are bent will have excessive clearance as they will not seat correctly. Eric |
Re: timing belt
KG wrote:
> > If by saying the timing belt is completely broken, cam shaft doesn't turn > with the crankshaft then yes you have major damage. All the 87 accords > have interference engines. With luck you may not have broken a piston if > it only turned a few degrees after breaking the belt but it most likely > has bent valves at best. When you turn it over with the crank don't > force it, you will just cause more damage. The safest thing to due is to > remove the cam before trying to turn it over. If it turns over easily > with the plugs removed tap on each valve 0and see if they bind if so it > is at least head rebuild time. Let us know. I believe that it would be easier to just check the valve clearances. Any valves that are bent will have excessive clearance as they will not seat correctly. Eric |
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