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".
>

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