> > Blown head gaskets are probably the #1 wasserboxer > > killers in our vans. > > What interests me is which gaskets blow the most. > > My guess is that the external rubber seal fails the > > most, From what I hear, that is indeed the one that fails the most. Corrosion pitting on original VW heads is the primary culprit. AMC heads are supposedly of a better alloy that doesn't corrode as easily. The shape of the gasket (flat) plus corrosive coolant makes it a very vulnerable point. None of the other seals seem to fail as famously as the water jacket rubber gasket. > > Thus, I suggest a quick and dirty solution: Hi-temp > > silicon sealer applied around the external head > > sealing gasket and nearby mating head and crankcase > > surfaces, possibly adding some kind of > > re-enforcement > > belt to keep it from being blown out by the coolant > > pressure. No good. Have a look at the shape of the head: <http://tinyurl.com/5l8bp> And look at the gasket that fits on it (the two at the top with the bumps are the gaskets in question) <http://tinyurl.com/5dvlx> Nothing short of a specially milled metal or wood block would be able to |
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