DeTomaso Mailing List: June 2001, Message #58

Counterpoint!!!!!!!

I have built many engines using the rubber end gaskets without problem.  The
challenge occurs after your block and heads may have been decked and the
clearance between the intake manifold and the block is reduced.  It is in
this scenario, when the rubber end gaskets are squeezed tighter than their
intended application, failure occurs.  You can check clearance by test
fitting prior to your final assembly. A word of caution.  A little RTV may
be good - but a lot is definitely BAD.  I have experienced engine damage
(and I am not alone) caused by RTV working loose over time and blocking
tight oil passages (i.e. push rod restrictors) and radiator tubes.  I now
use the stuff extremely sparingly, and would never subscribe to the practice
of globbing it on the ends of the block and intake manifold.  Find
appropriately sized cork if need be.

Things I wish someone had told me earlier.

JT

----- Original Message -----
From: "Paul & Cathy Rimov" <whtvnm@mind.net>
To: "Multiple recipients of list" <detomaso@realbig.com>
Sent: Saturday, June 02, 2001 9:56 AM
Subject: Re: Intake Manifold Gasket Installation Question


> Jim
>
> The problem with using the  rubber end gaskets with the so called turkey
pan
> is they tend to squeeze out over time and result in unwanted oil leakage.
If
> you are absolutely determined to use gaskets, make your own cork gaskets.
> Most people are much more successful in just using RVT. It provides a
great
> long lasting seal. The so called turkey pan has advantages and
disadvantages
> in it's use. The advantage of using a pan is it can help reduce heat
> exposure to the intake manifold thus keeping cooler air entering the
engine
> and thus theoretically helping horsepower. The biggest disadvantage of
using
> the pan is vacuums leaks and having one or more of your cylinders burning
> lean which can lead to poor engine performance and even engine damage.  I
> have used both and feel the leakage that commonly occurs with the turkey
pan
> does not out weight its advantages.
>
>
> Paul
>