[Vwdiesel] Exhaust manifold studs

[Rudy]

As a matter of fact, I have been using Mobil 1 for a few years in it, had to
stop a couple months ago though, it's getting tired and burning too much
oil, I have another Short Block I built for it but can't get up the energy
to swap them, this may be the time though.  I do have a rubber VC Gasket but
it has been leaking in the back.
I thought about the leaking VC Gasket but it never dawned on me that the
Synthetic Oil could be doing it.  I suppose once there is enough oil in
there for them to work loose it's too late and they need to be cleaned out
to start over.
Thanks for the heads up and the tip on the Corn Syrup, I'll use that next
time. (soon)......Rudy

 

-----Original Message-----
From: vwdiesel-bounces at vwfans.com [mailto:vwdiesel-bounces at vwfans.com] On
Behalf Of James Hansen
Sent: Thursday, April 19, 2007 12:11 PM
To: vwdiesel at vwfans.com
Subject: Re: [Vwdiesel] Exhaust manifold studs

I suspect Rudy is using synthetic engine oil, and has a small valve cover
leak.  That happens with the stuff.  My 89 Jetta wouldn't keep them in at
all, nor would the VC gasket keep the 0-40 synth in very well either..
If you try loctite, look it up on the chart, there is some higher heat
stuff, but the head where the studs screw in may get too hot still.
Make sure there is no VC gasket leak, clean clean clean, reinstall.  You
could use corn syrup to install.  It should burn up to enough carbon juice
to seize them in there. :-] -james

jonathan hoehl wrote:
> I put the studs into the head with conventional motor oil - thinking 
> it would coke-up with the heat - then torqued the nuts gently.  After 
> a few heat cycles re-torqued - again, gently!  Don't know if anything 
> in particular helped, but they've stayed put.
> 
> Jon
> 
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