First, check the valve cover to be sure it is flat. Many of them are distorted
due to over tightening of the two hold down nuts.
I attach a cork gasket to the valve cover only. To do that I use a Thin bead of
silicone gasket adhesive on both the cover & the gasket face.
Then set the combination of cover & gasket on a very flat surface to dry. The
goal is to make sure the gasket is in contact with the flat surface & correctly
aligned with the cover.
I have never had a leak when this procedure is used. I never use any adhesive
between the gasket & the head.
Gary Hodson
-----Original Message-----
From: Patrick & Caroline Quinn <p_cquinn at tpg.com.au>
To: healeys <healeys at autox.team.net>
Sent: Sat, Apr 7, 2018 7:37 am
Subject: [Healeys] Rocker Cover Poll
Hello
Having a lot of fun trying to stop a leak from the rear of the rocker cover of
the BN3.
It?s a standard early C-series six-cylinder and pressed steel rocker cover with
dome shape nuts.
The question is whether the accepted practice is to stick the cork gasket to
the rocker cover with no jointing compound between the gasket and cylinder
head. OR is the accepted practice to apply jointing compound to both surfaces?
Hoo Roo
Patrick Quinn
Blue Mountains, Australia
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