See http://chevytrucks.org/tech/manifold.htm for a writeup on this
procedure. I posted this a couple years ago, although it got credited to
somebody else - no matter. There are a lot of little things to check. Using
studs on the end, and the Clifford gaskets, can be a big help for those of
us with only two hands - you are on the right track, but the devil is in the
details.
Jack / Winter Park FL
-----Original Message-----
From: Jeremy Eastman <jeastman@appliedtheory.com>
To: oletrucks-digest@autox.team.net <oletrucks-digest@autox.team.net>
Date: Wednesday, April 14, 1999 9:20 AM
Subject: [oletrucks] Baffled on '53 235ci manifold gasket leakage
>Put my rebuilt head on last weekend.. (& got some lessons learned that I'll
>write-up later, if only for everybody's amusement). I'm having problems
>getting a good seal with the manifold.
>
>For now, I'm curious what kind of experiences people have had when
>re-mounting their manifold assembly on their 235's. I put mine on (as one
>unit), but wasn't able to get a good seal w/ new manifold gaskets. Took it
>off, sure enough, there was a sleeve ring out of alignment. Fixed that,
>checked the others, and remounted, this time torqueing the hell out of the
>bolts. Still a leak. Took it off yet again, called my machinist to see if
>by some chance he had shaved the manifold side of the head. Nope- but did
>get the hint from him to mount the intake and exhaust manifolds separately
>(which seemed quite a trick to me, given the shared mountings and the 2-up,
>2-down bolt set up).
>
>Loosened up the 4 bolts that join the manifolds together, retightened the 6
>manifold-to-head bolts, and then retightened the 4 manifold assembly bolts.
> Still getting leakage (at least from the exhaust, very obvious). I
>checked my exhaust master ring, and that seals good, so I can rule that
out.
>
>I had to completely re-adjust my valves and am still getting some
>performance problems (I'm not done with that yet.. and can't hear clicking
>to adjust, with that damn manifold twacking away), but I am guessing until
>I get this manifold gasket problem taken care of, I'm gonna get sporadic
>lean fuel/air mixture, which doesn't make tuning any easier.
>
>Has anybody run into this? What's the trick?
>oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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