On Sun, 4 Dec 2005 00:16:49 -0600, "Greg O"
wrote:



wrote in message
.. .

G'day,
title pretty well says it all. Right hand rocker
cover has small persistent oil leak. Notice half a dozen drops of oil
beneath rocker overnight. No big deal but irritation value is huge.
Have fitted new gasket, helicoil insert in centre stud, new stud with
nut on inside end .
Still bloody leaking. Next step is either grin and bear it or pull
rocker cover again and use some silastic gasket type cement as well as
gasket, or get cover machined flat.
Should've checked if it was warped before but didn't. (sigh) If I get
it machined would I have to get the head machined as well? Only way I
know to check if warped is put a straight edge across it. Old bushy
mechanic I used to know would use a louvre (sheet of glass) out of a
window, seemed to work for him.
Any suggestions gratefully received.
So far have reconditioned carbies, retimed, new plugs and new ignition
trigger (hall effect) device. Now running like a bewdy!! Except for
the irritating bloody leak. Tia.

Mac.

Make sure both surfaces are flat and true, use a new gasket, with no sealer,
and clean the surface well with lacquer thinner or brake cleaner before
assembly. Get the surfaces clean and DRY! I have used this method many times
over the years and any time I have removed the part later the gasket was
well adhered to both surfaces.
Greg

Thanks Greg and Don, the gasket was new and surfaces clean but not
with thinners or brake cleaner. Think I'll take it off again and
clean thoroughly and then either (a) make up own thicker gasket from
cork (like the old days!) (b) reuse fitted gasket which is almost new
and use something like Cat gasket cement or (c) thoroughly reclean,
sand and see how that goes. Thanks again, regards,
Mac