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Car Forum / Chevrolet / Chevrolet Trucks / October 2005Head Gasket... main cause?
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 DEXCOOL Anti FREEZE is the problem!!!!! That ORANGE antifreeze EATS GASKETS > 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 [quoted text clipped - 3 lines] > > Thanks, GC HE wouldnt have put DEXCOOL in a 1986 Chevy....Hopefully anyways. > DEXCOOL Anti FREEZE is the problem!!!!! > [quoted text clipped - 7 lines] > > > > Thanks, GC > DEXCOOL Anti FREEZE is the problem!!!!! > > That ORANGE antifreeze EATS GASKETS Please substantiate that claim. Oh...and fix your shift key, while you're at it. Dave I asked Prestone,they said as long as you drain it first its ok to use either one , just NOT together. >> DEXCOOL Anti FREEZE is the problem!!!!! >> [quoted text clipped - 4 lines] > > Dave 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! > 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 [quoted text clipped - 4 lines] > > Thanks all! 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 Yes Dave, thought about doing it myself... will be my first time with heads. Got any pointers? Thanks, GC > Yes Dave, thought about doing it myself... will be my first time with > heads. Got any pointers? > > Thanks, GC I knew this had been covered before :) http://groups.google.com/group/alt.trucks.chevy/browse_thread/thread/6320d90a7f8 ea10b/ab49be5ea005e2e2%23ab49be5ea005e2e2?sa=X&oi=groupsr&start=0&num=3 Dave > I asked Prestone,they said as long as you drain it first its ok to use > either one , just NOT together. Draining is not good enough. It has to be thoroughly flushed from the system. Dave >>I asked Prestone,they said as long as you drain it first its ok to use >>either one , just NOT together. [quoted text clipped - 3 lines] > > Dave 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.  Signature----------------- www.thesnoman.com 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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