Hi Guys:
I'm just back from a week of realtively spirited "Touring" (about 1200
miles), and the engine grew progressively more noisy until it was clear the
exhaust manifold bolts were loosening.
Once home in the garage I was able to get the engine room stripped down to
see what was going on. On the drivers side, the rear-most bolt had left the
car (of course, the most difficult to access!) and the rest were very loose
on both sides of the engine.
My car's engine is a 331 stroker making about 320 hp, and is fitted with
period headers (identified by this List as from JC Whitney), and these
header to cylinder head bolts have had to be tightened at least once every
driving season.
I know on race cars this is an ongoing problem and that bolt locks are
usually fitted to prevent this fault. But the headers I have leave little
room for these mechanical locks. Does anyone else have this problem, and is
there a reasonable solution that doesn't require engine removal to effect?
Perhaps a new set of headers? One of the many Loctite formulas that take
high heat?
Help!
dave
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