tried to for the last week and a half to get four siezed exhaust manifold bollts out of my caddys head, got 2 of them but i have so far fairly butchered the other two, i have used heat , drilled them out twisted off 2 ese outs in each one wrecked about a dozen good drill bits and now have come to the decision they are not to be coming out dont know what else to do . any suggestions out there . they just wont drill out to a larger amount and any drill bit i can get other than a really expensiver 1/8 bit would not toutch them , they just come out like powder and then the bits dulls and you dont make any headway. i am ready to bolt the cast manifold back on with new gaskets and some good sealant and live without 2 bolts and see what happens
any suggestions??
i dont know what else to do.
two of the rear bolts were broke off before and it blew the rear gasket as it was old. i now have at least one bolt in the rear gasket and can get some squeeze on the gaskets.