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Old 04-19-2021, 05:55 PM   #4
J!m's Avatar
Join Date: Jun 2003
Location: Bouncing off the rev limiter in CT!
Posts: 3,046
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If the nuts ARE copper, they will (worst case) strip on the rusty steel studs.

Once they are off/apart, use a pipe wrench to get the old studs out and install new ones.

Unless, they are not TOO bad, then just chase the threads with a die. Apply never-sieze to the studs before securing with the new nuts (and new gasket!)

It's been so long since I've looked at the 4-cylinder maybe they did use steel nuts at the head...
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