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 Pulling heads

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HoosierDaddy



Posts : 102
Join date : 2014-12-28

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PostSubject: Pulling heads   Pulling heads Icon_minitimeMon May 17, 2021 12:27 pm

Hello all!

Its been awhile since I posted. Last winter my 96 RMW overheated when it was subzero. I expected to find a stuck thermostat but tracked it back to simply low coolant. I had a mechanic check it out and he could not find a leak, and suggested it had a blown head gasket. I've put some miles on it since then, and it runs fine, except its losing about a half gallon of coolant every 250 miles.

I have some broken exhaust manifold bolts and I'm thinking about pulling the heads to repair those and see if I can find the leak. Thoughts?
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Rev Bob



Posts : 386
Join date : 2016-05-24

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PostSubject: Re: Pulling heads   Pulling heads Icon_minitimeMon May 17, 2021 8:53 pm

A blown head gasket would show up in other ways than just coolant loss. That much coolant loss would certainly be detectable in the exhaust or in engine performance. Any sign of contamination in the engine oil?
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Fred Kiehl

Fred Kiehl

Posts : 5985
Join date : 2009-11-13
Age : 72
Location : Largo, FL 33774

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PostSubject: Re: Pulling heads   Pulling heads Icon_minitimeTue May 18, 2021 7:57 am

Do you have white exhaust smoke? That is direct evidence of a coolant to cylinder gasket leak. If you pull your plugs, and some are really clean, that is where the leak is.
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goldwolfnhn



Posts : 228
Join date : 2019-07-11
Location : De Pere, Wisconsin

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PostSubject: Re: Pulling heads   Pulling heads Icon_minitimeTue May 18, 2021 10:28 am

has the engine ever struggled to crank at all?

had one of my trucks where it would crank fine but suddenly slow down before cranking fast again (almost as if one cylinder was binding on part of it's stroke) once it was running it was fine and I drove it that way for over a year before the truck overheated due to low coolant, and yes it was because of a blown head gasket which was also causing the crank issue aswell due to coolant in the cylinder, but the only thing other then the odd cranking was vapor out the exhaust, problem was the problem started in the winter.
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Sprocket

Sprocket

Posts : 5897
Join date : 2008-11-04
Location : Palm Beach County

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PostSubject: Re: Pulling heads   Pulling heads Icon_minitimeWed May 19, 2021 8:49 am

heater core is probably leaking. had same thing and took me a month to figure out. check the AC drip line for coolant as it will leak into the condensation tray and leave that way.
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