Quote:
Originally Posted by theholycow
Well, I think my first repair will be what I'm pretty sure is a warped exhaust manifold. I've asked around a bit but I can't get a straight answer on whether or not I'll need to take the heads off and have them machined, or if it's more common that the manifold is the only part that's warped.
Then I don't really know how to do it. It seems simple enough, I think: just unbolt the manifold, replace, and torque to spec (maybe alternating bolts to torque it evenly and gently), but I don't know if there's anything else I'll need to do.
After that I'll have to do the rest of the exhaust (no problem, I can handle that), a general tune-up and new plug wires (again, no problem); but then I'll have to tune the carburetor... :(
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you might just have a blown exhaust gasket. id swap out the gasket first to check, you can get some that are 4 layer style press-fit gaskets that conform to the gap between the head and manifold to ensure a good seal
as for torquing them down, start by threading them all in to make sure you havent cross threaded anything, then start in the middle and torque it down, then one to the left, then one to the right, going back and forth (L and R) till they are all tightened. then continue to check the tightness of them for the next month as they might back out during the break in period