John Vrugtman is right, you need to be certain the valve cover is flat. It
can also be twisted which can be fixed by twisting in the opposite
direction. Over or under tightening of the bolts can contribute to leaking.
I use a silicon gasket adhered to the cover. They don't dry out and shrink.
John Spaur
Santa Cruz Mountains, California
From: Healeys [mailto:healeys-bounces at autox.team.net] On Behalf Of Patrick &
Caroline Quinn
Sent: Saturday, April 7, 2018 4:33 AM
To: healeys at autox.team.net
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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