Re: [Amc-list] 7 Main Bearing engine into 62 Classic

[Frank Swygert <farna@xxxxxxx>]

Bruce, just what kind of sealer are you using on the head gasket? Sounds like you are using the Permatex Copper from a tube.. a silicone type product. What you should be using is the spray on copper or aluminum sealant. The spray on is like a thick spray paint and is easiest to get/use. Just spray enough to lightly cover the gasket on both sides, thats' all -- shouldn't be dripping or running, though a few drips or runs won't hurt. Permatex makes a copper spray -- Item # 80697, part #101MA. If you used the silicone based stuff that's the problem! You'll need a new head gasket...

While the head is off, check it for warping. If you have a good straight edge (a framing square or a machinists combination square) place it across the head. You shouldn't be able to get a 0.002" feeler gauge under the straight edge at any of the sealing surfaces. If you can, it needs to be surfaced before replacing the gasket. 

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Date: Wed, 22 Oct 2008 11:01:29 -0400
From: "Bruce Griffis" <bruce.griffis@xxxxxxxxx>

I'll try replacing the head gasket one more time and not put so much
Permatex Copper tube goo on it. I'm thinking I did a poor job on the
headgasket and that is part of my problems (exhaust is blue from oil,
but also has a HECK of a lot of condensation in it. Not sure if I got
a problem with rings and headgasket, or just one, or just the other.

-- 
Frank Swygert
Publisher, "American Motors Cars" 
Magazine (AMC)
For all AMC enthusiasts
http://farna.home.att.net/AMC.html
(free download available!)

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