Head Gasket... main cause?

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GC Contact options for registered users 's Avatar posted on
October 26, 2005, 11:33 pm
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Just had a head gasket go in my '86 Silverado with 305 cu.in. I noticed
a inconsistent miss ever since I bought it, and thought it might be a
coolant leak. But it was barely noticeable, so wasn't sure.
I'm guessing it was over-heated before I got it... it only has roughly
97,000 original miles. How much does age have to do with head gaskets?

Thanks, GC


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no one Contact options for registered users 's Avatar posted on
October 27, 2005, 4:06 pm
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Re: Head Gasket... main cause?

DEXCOOL Anti FREEZE is the problem!!!!!

That ORANGE antifreeze EATS GASKETS



GC wrote:


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Adam Contact options for registered users 's Avatar posted on
October 27, 2005, 4:38 pm
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Re: Head Gasket... main cause?

HE wouldnt have put DEXCOOL in a 1986 Chevy....Hopefully anyways.




 

Hairy Contact options for registered users 's Avatar posted on
October 27, 2005, 5:35 pm
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Re: Head Gasket... main cause?



Please substantiate that claim.
Oh...and fix your shift key, while you're at it.

Dave



 

D-farr Contact options for registered users 's Avatar posted on
October 27, 2005, 7:11 pm
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Re: Head Gasket... main cause?

I asked Prestone,they said as long as you drain it first its ok to use
either one , just NOT together.








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GC Contact options for registered users 's Avatar posted on
October 27, 2005, 10:51 pm
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Re: Head Gasket... main cause?

No I don't use Dexcool... I'm "old school", so I use Peak or Sierra. I
replaced the factory 2 row with after-market 4 row of the same
design/style. BTW, never did like Presstone either.

Anyone have any other ideas about head gasket failure? This is the first
one I've had, so I'm green to this...

Thanks all!


 

Hairy Contact options for registered users 's Avatar posted on
October 28, 2005, 12:09 am
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Re: Head Gasket... main cause?



I've had a couple of 305's and never had a head gasket problem. They weren't
powerhouses, but they were mostly trouble-free. If yours has overheated, you
may have to have the heads trued a bit. Are you doing it yourself?

Dave



 

GC Contact options for registered users 's Avatar posted on
October 28, 2005, 1:03 am
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Re: Head Gasket... main cause?

Yes Dave, thought about doing it myself... will be my first time with
heads. Got any pointers?

Thanks, GC


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Hairy Contact options for registered users 's Avatar posted on
October 28, 2005, 9:30 am
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Re: Head Gasket... main cause?



I knew this had been covered before :)


http://groups.google.com/group/alt.trucks.chevy/browse_thread/thread/6320d90a7f8ea10b/ab49be5ea005e2e2%23ab49be5ea005e2e2?sa=X&oi=groupsr&start=0&num=3

Dave



 

Hairy Contact options for registered users 's Avatar posted on
October 28, 2005, 12:15 am
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Re: Head Gasket... main cause?



Draining is not good enough. It has to be thoroughly flushed from the
system.

Dave



 

TheSnoMan Contact options for registered users 's Avatar posted on
October 28, 2005, 9:49 am
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Re: Head Gasket... main cause?

Hairy wrote:

The main cause of head gasket failure is not coolant type, it is the
lack of it or overheating the engine which causes heads to warp slightly
and distort gasket contact area.

--

-----------------
www.thesnoman.com

 

gimmpy Contact options for registered users 's Avatar posted on
October 31, 2005, 3:33 am
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Re: Head Gasket... main cause?

I would have to agree with the snoman.most head gasket break downs are
related to overheating problems but they can also be linked to a non flo
off oil which we all know is a MAIN cause of heat being generated in an
isolated area.The oil is pumped from the pan to the top of the motor where
it is expected to (gravity drain) back down.If there are cloged port holes
this is not possible. If proper cooling by the cooling system can not be
achieved over a duration of time then the cooling system seams to fail.But
in reality7 it could be the use of (cheap) oil which causes build up!!!!!!


 

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