Re: [Chrysler300] Leaky Valve Covers - G

[MRS954@xxxxxxx]

I'd like to add another step: Before applying the sealant to the head surface, clean the gasket mating surfaces good with lacquer thinner or brake cleaner and a cotton swab. It will remove any trace of oil left on the flange, and greatly increase the adhesion.  Just don't be too generous with the liquid, you don't want to get too much of that stuff mixed in with your motor oil.
 
See you all in Carlisle,
Mark Souders
300H
Mohrsville, PA
 
 
-----Original Message-----
From: lettercars@xxxxxxx
To: richard@xxxxxxxxxxxx; chrysler300@xxxxxxxxxxxxxxx
Sent: Tue, 6 Jun 2006 07:28:13 EDT
Subject: Re: [Chrysler300] Leaky Valve Covers - G



Hi Richard and All:

I have had some success with the following:
1. Very completely clean the valve cover, and makesure it is flat around 
the bolt holes.
2. Properly apply the yellow (or black) permatex weather strip adhesive 
to both the cover and the gasket. Probably a couple coats,letting each dry 
before bonding.
3. Apply two or three layers of permatex #2 gasket sealer on the head, 
letting each dry.
I think the problem with the B engine sealing in this area is at least 
partly due to the fact the surface was never machined flat. Anyway, this is an 
attempt to seal the potential voids
4. I apply a coupe coats to the gasket as well.
5. Assemble the cover to the head and tighten the nuts carefully. I 
retighten---not too tight---several times over the next several days.
I am sure others have there own ways, and will be interested in hearing 
about them. In my experience, the 6 attachment covers are not all that much 
better than the four.

As for the valley cover, the smart money would say to replace it. It sure 
is a lot of work to go thru again to fix a vacuum leak. (I have gotten away 
with using the old on though!)
Hope this is of some help. Good luck!

300ly, Gil Cunningham
Tallahassee, Fl


In a message dated 6/6/2006 6:56:42 AM Eastern Standard Time, 
richard@xxxxxxxxxxxx writes:

Good morning,

The left side valve cover is leaking on the G. Should I pull off both rams 
and replace the valley pan? The valley pan is only a year or so old and has 
less than 2000 miles on it since I last had it off. Looks like I am going to be 
able to make it to Carlisle. Before driving that distance, I was going to 
try and replace the VC gasket.

Next what are the various tricks out there to sealing a 4 bolt valve cover, 
especially on a ram car where the intakes need to come off. 

Best regards,

Richard Osborne
Columbus, OH

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