FWIW the B and RB engines did not come factory-equipped with exhaust
manifold gaskets. The head and manifold were machined to provide a
leakfree fit. With exhaust gas pressure below 5 psi a gasket just
wasn't necessary.
My 70 LeBaron had an irritating leak that seemed to be right in front of
me. I lived with it for years but eventually decided that it had to be
fixed. What a job! It turned out that the rearmost stud had broken off
flush with the head but the broken piece and nut were still in place.
I can usually get ANY broken bolt/screw out but this one defeated me.
Despite hours of effort and all manner of tools I just couldn't get the
broken piece to budge. The steering column location didn't help.
I eventually had to pull the head and take it to a machine shop. I
pulled the other head too and was glad I did since both were slightly
warped. With resurfaced heads, new gaskets, and no leaks my car ran
better than ever.
Are you having trouble accessing the nuts? They are a bugger to get at.
If they're stuck I recommend PB Blaster as a loosener.
Pete in PA
70 LeBaron
Subject: IML: Exhaust Manifold Gasket
Date: Mon, 29 Dec 2003 09:08:34 -0500
From: "Hall, David" <Dave.Hall@xxxxxxx>
Would anyone care to share their advice on how to change an exhaust
manifold gasket on a 440 for a 73 Imperial? The offending gasket is on
the drivers side. Any tips would be appreciated.=20
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