Vette(s): 1982 C3 Collectors Edition 44000 miles, sat in the sun most of its life, My wife purchased it for me for Father's Day in 2007 from her girlfriend that had it for 19 years. It is on the road again. I'm retired but it is now my daily driver.

My 82 crossfire manifold has a vacuum leak between the top plate and the manifold. This will be the second time I have had to pull it. Thought I did a good job before but that was not the case. I have been told that all top plates are warped a little. The current one I have was not that bad but had a little warp.

I was told to find the low spot. Start there and walk the plate down with a cross pattern.

Got some questions: Does anyone have a particular gasket sealer they love?

Should I purchase a gasket or just use sealer or do both. (I did both last time but I do not think I started at the low point)

Should I dress up the threads or will this make the loose on the bolts.

I will clean all of the bolt threads of course.

This is all aluminum never found any torque specs for the plate any recommendations? Tb2k82CE2009-12-04 22:14:43

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Intake manifold

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Intake manifold

in Forum: C3 Engines, Driveline and Handling