H Steve Dolan writes: > >On Tue, 30 Apr 1996, bill (w.r.) crick wrote: >> Also anyone know why the 'manifolds' cracked? The mechanic said that he had >> never seen this before. > >Ideally, the heat exchangers are hung from the engine block by metal >braces. Over time these have a tendency to come loose or break off, >after which the whole exhaust system is hanging from the manifold. Then >you back into a curb which flexes the exhaust system on the manifolds and >breaks them in half at worst or at least sets you up for new manifold >gaskets ('76-78). > Ahhhh... I wondered why my 78's heat exchangers seemed to be bolted only to the exhaust pipes and nothing else! I thought it a strange engineering decision indeed. What are my low-cost options (i.e. short of replacing heat exchangers) to remedy this? Is it good enough to have a well-attached muffler bolted on the backside of the heat exchangers? -Rodney
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