Re: Re: 95 Accord runs hot on freeway
 

"Tegger" <tegger@tegger.c0m> wrote in message
news:Xns98BCD97CFDB95tegger@207.14.116.130...
> Jim Yanik <jyanik@abuse.gov> wrote in
> news:Xns98BC6EBF3678Bjyanikkuanet@64.209.0.84:
>
>> Tegger <tegger@tegger.c0m> wrote in
>
>>>
>>> It's not his thermostat. I'm sure of that.
>>>
>>
>> at that age,it's certainly suspect.
>
>
>
> There's certainly no harm (and lots of good!) in replacing the thermostat
> while the cooling system is in dry-dock, but the thermostat is not the
> OP's
> particular problem here. See my other post.
>

That's my view. The thermostat is a good target because it's inexpensive and
probably due for replacement while the coolant is drained, but the symptoms
are pretty classic for a plugged radiator. The plastic tanks in the radiator
are also plotting to crack, I'm sure.

Remember, 'pinkfloyd' - OEM only on the thermostat and be sure the system is
properly purged of air when the system is refilled with Honda premix (never
add tap water).

When you replace the radiator and thermostat, you can Set the Controls for
the Heart of the Sun and still stay cool. ;-)

Mike

Re: 95 Accord runs hot on freeway
 

jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:

> Jim Yanik wrote:
><snip>
>> Maybe he's got a worn water pump too.
>
> pump can't wear in a way that reduces flow - there's no parts that touch.
>
>

is the impeller plastic or metal?
IMO,plastic can degrade,even immersed in the coolant.

--
Jim Yanik
jyanik
at
kua.net

Re: 95 Accord runs hot on freeway
 

jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:

> Jim Yanik wrote:
><snip>
>> Maybe he's got a worn water pump too.
>
> pump can't wear in a way that reduces flow - there's no parts that touch.
>
>

is the impeller plastic or metal?
IMO,plastic can degrade,even immersed in the coolant.

--
Jim Yanik
jyanik
at
kua.net

Re: 95 Accord runs hot on freeway
 

jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:

> Jim Yanik wrote:
><snip>
>> Maybe he's got a worn water pump too.
>
> pump can't wear in a way that reduces flow - there's no parts that touch.
>
>

is the impeller plastic or metal?
IMO,plastic can degrade,even immersed in the coolant.

--
Jim Yanik
jyanik
at
kua.net

Re: 95 Accord runs hot on freeway
 

jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:

> Jim Yanik wrote:
><snip>
>> Maybe he's got a worn water pump too.
>
> pump can't wear in a way that reduces flow - there's no parts that touch.
>
>

is the impeller plastic or metal?
IMO,plastic can degrade,even immersed in the coolant.

--
Jim Yanik
jyanik
at
kua.net

Re: 95 Accord runs hot on freeway
 

Jim Yanik wrote:
> jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
> 2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:
>
>> Jim Yanik wrote:
>> <snip>
>>> Maybe he's got a worn water pump too.
>> pump can't wear in a way that reduces flow - there's no parts that touch.
>>
>>
>
> is the impeller plastic or metal?
> IMO,plastic can degrade,even immersed in the coolant.
>
metal. you're right, it can corrode, but rarely does. i wouldn't call
degradation wear, but yes, that's possible.

Re: 95 Accord runs hot on freeway
 

Jim Yanik wrote:
> jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
> 2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:
>
>> Jim Yanik wrote:
>> <snip>
>>> Maybe he's got a worn water pump too.
>> pump can't wear in a way that reduces flow - there's no parts that touch.
>>
>>
>
> is the impeller plastic or metal?
> IMO,plastic can degrade,even immersed in the coolant.
>
metal. you're right, it can corrode, but rarely does. i wouldn't call
degradation wear, but yes, that's possible.

Re: 95 Accord runs hot on freeway
 

Jim Yanik wrote:
> jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
> 2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:
>
>> Jim Yanik wrote:
>> <snip>
>>> Maybe he's got a worn water pump too.
>> pump can't wear in a way that reduces flow - there's no parts that touch.
>>
>>
>
> is the impeller plastic or metal?
> IMO,plastic can degrade,even immersed in the coolant.
>
metal. you're right, it can corrode, but rarely does. i wouldn't call
degradation wear, but yes, that's possible.

Re: 95 Accord runs hot on freeway
 

Jim Yanik wrote:
> jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
> 2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:
>
>> Jim Yanik wrote:
>> <snip>
>>> Maybe he's got a worn water pump too.
>> pump can't wear in a way that reduces flow - there's no parts that touch.
>>
>>
>
> is the impeller plastic or metal?
> IMO,plastic can degrade,even immersed in the coolant.
>
metal. you're right, it can corrode, but rarely does. i wouldn't call
degradation wear, but yes, that's possible.

Re: 95 Accord runs hot on freeway
 

jim beam <spamvortex@bad.example.net> wrote in
news:V4-dnTJn2ZvG8SzYnZ2dnUVZ_sninZ2d@speakeasy.net:

> Jim Yanik wrote:
>> jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
>> 2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:
>>
>>> Jim Yanik wrote:
>>> <snip>
>>>> Maybe he's got a worn water pump too.
>>> pump can't wear in a way that reduces flow - there's no parts that
>>> touch.
>>>
>>>
>>
>> is the impeller plastic or metal?
>> IMO,plastic can degrade,even immersed in the coolant.
>>
> metal. you're right, it can corrode, but rarely does. i wouldn't
> call degradation wear, but yes, that's possible.
>

ISTR reading somewhere about a water pump impeller that had worn away.It
didn't say whether the impeller was plastic or metal.

also,I believe an old thermostat could open only part way,and pass -some-
coolant,but not enough,explaining why the heater core could dump enough
heat to keep the motor cool. I really do not believe a heater core can dump
enough heat -by itself- to keep a motor cool. Otherwise,there would be no
need for such a large radiator at the front.

--
Jim Yanik
jyanik
at
kua.net

Re: 95 Accord runs hot on freeway
 

jim beam <spamvortex@bad.example.net> wrote in
news:V4-dnTJn2ZvG8SzYnZ2dnUVZ_sninZ2d@speakeasy.net:

> Jim Yanik wrote:
>> jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
>> 2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:
>>
>>> Jim Yanik wrote:
>>> <snip>
>>>> Maybe he's got a worn water pump too.
>>> pump can't wear in a way that reduces flow - there's no parts that
>>> touch.
>>>
>>>
>>
>> is the impeller plastic or metal?
>> IMO,plastic can degrade,even immersed in the coolant.
>>
> metal. you're right, it can corrode, but rarely does. i wouldn't
> call degradation wear, but yes, that's possible.
>

ISTR reading somewhere about a water pump impeller that had worn away.It
didn't say whether the impeller was plastic or metal.

also,I believe an old thermostat could open only part way,and pass -some-
coolant,but not enough,explaining why the heater core could dump enough
heat to keep the motor cool. I really do not believe a heater core can dump
enough heat -by itself- to keep a motor cool. Otherwise,there would be no
need for such a large radiator at the front.

--
Jim Yanik
jyanik
at
kua.net

Re: 95 Accord runs hot on freeway
 

jim beam <spamvortex@bad.example.net> wrote in
news:V4-dnTJn2ZvG8SzYnZ2dnUVZ_sninZ2d@speakeasy.net:

> Jim Yanik wrote:
>> jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
>> 2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:
>>
>>> Jim Yanik wrote:
>>> <snip>
>>>> Maybe he's got a worn water pump too.
>>> pump can't wear in a way that reduces flow - there's no parts that
>>> touch.
>>>
>>>
>>
>> is the impeller plastic or metal?
>> IMO,plastic can degrade,even immersed in the coolant.
>>
> metal. you're right, it can corrode, but rarely does. i wouldn't
> call degradation wear, but yes, that's possible.
>

ISTR reading somewhere about a water pump impeller that had worn away.It
didn't say whether the impeller was plastic or metal.

also,I believe an old thermostat could open only part way,and pass -some-
coolant,but not enough,explaining why the heater core could dump enough
heat to keep the motor cool. I really do not believe a heater core can dump
enough heat -by itself- to keep a motor cool. Otherwise,there would be no
need for such a large radiator at the front.

--
Jim Yanik
jyanik
at
kua.net

Re: 95 Accord runs hot on freeway
 

jim beam <spamvortex@bad.example.net> wrote in
news:V4-dnTJn2ZvG8SzYnZ2dnUVZ_sninZ2d@speakeasy.net:

> Jim Yanik wrote:
>> jim beam <spamvortex@bad.example.net> wrote in news:L9-dnexQr-
>> 2Ppy3YnZ2dnUVZ_vrinZ2d@speakeasy.net:
>>
>>> Jim Yanik wrote:
>>> <snip>
>>>> Maybe he's got a worn water pump too.
>>> pump can't wear in a way that reduces flow - there's no parts that
>>> touch.
>>>
>>>
>>
>> is the impeller plastic or metal?
>> IMO,plastic can degrade,even immersed in the coolant.
>>
> metal. you're right, it can corrode, but rarely does. i wouldn't
> call degradation wear, but yes, that's possible.
>

ISTR reading somewhere about a water pump impeller that had worn away.It
didn't say whether the impeller was plastic or metal.

also,I believe an old thermostat could open only part way,and pass -some-
coolant,but not enough,explaining why the heater core could dump enough
heat to keep the motor cool. I really do not believe a heater core can dump
enough heat -by itself- to keep a motor cool. Otherwise,there would be no
need for such a large radiator at the front.

--
Jim Yanik
jyanik
at
kua.net

Re: 95 Accord runs hot on freeway
 

Jim Yanik wrote:
<snip>
>
> also,I believe an old thermostat could open only part way,and pass -some-
> coolant,but not enough,explaining why the heater core could dump enough
> heat to keep the motor cool. I really do not believe a heater core can dump
> enough heat -by itself- to keep a motor cool. Otherwise,there would be no
> need for such a large radiator at the front.
>
it depends. it's all a matter of the energy that can be transferred per
degree of air temp difference. if the energy coming out of the coolant
is less than that which can be dumped through the heater matrix, then it
definitely can. you'd need to know the numbers to be sure.

Re: 95 Accord runs hot on freeway
 

Jim Yanik wrote:
<snip>
>
> also,I believe an old thermostat could open only part way,and pass -some-
> coolant,but not enough,explaining why the heater core could dump enough
> heat to keep the motor cool. I really do not believe a heater core can dump
> enough heat -by itself- to keep a motor cool. Otherwise,there would be no
> need for such a large radiator at the front.
>
it depends. it's all a matter of the energy that can be transferred per
degree of air temp difference. if the energy coming out of the coolant
is less than that which can be dumped through the heater matrix, then it
definitely can. you'd need to know the numbers to be sure.