Any exhaust system experts have any advice to offer? I just installed a new 2.1 engine in a 90 and ( with engine out) bolted on new exhaust header pipes and the heavy elbow flange that joins them together on the LH back corner. It was a bit of a bear to get em all to mate up properly, but with a lot of loosening and tightening and coaxing I thought I got em all snug ( poor fitting aftermarket parts I'm thinking). Well after start up it looks like I have an exhaust leak at one of the connections to the large elbow flange. Damm - I'm thinking these were hard enough to mate with engine out, now I have to do it on my back and looking up ! So are there any tricks here ? Use a gasket sealer along with the regular flange gasket? Are regular nuts better than copper as it might be easier to tighten them down more ? I used copper thinking they were superior. Maybe I just need to use a bigger ratchet and tighten the crap out of the bolts, at the risk of breaking a bolt though. Maybe it's not uncommon to have to loosen/re-tighten them after a few heat/cool cycles ? Any sympathy and or suggestions appreciated. -john |
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