As it's experimental you might be able to get away with something you make.

There are aftermarket VW pushrod tubes that screw together to install and
then unscrew into position and clamp against their ends and their rubber
grommets rather than the head off routine required with standard tubes. You
then reinstall the pushrod.

Don't know how these would compare to the Continental engine.

Hope this helps,
Peter

"Dick" wrote in message
om...
My Continental 85 is leaking oil and appears to be from pushrod tubes and
valve covers. It is on an experimental plane.

While I can cure the one leaking valve cover, the pushrod tubes have those
heavy "wirecircles with two tangs" over the rubber end fittings. Some
tubes
are leaking at bottom and others at top with no discernable pattern to
the
leak locations.

Are there any after-market clamps (installable like a hose clamp
hopefully)
that would be able to replace the originals?

Is there any "non-teardown" fix? Wondering along the line of front wheel
drive vehicle axle constant-velocity joints and the split-boots sometimes
used.

I did notice that the intake tubing joint rubber fittings had substantial
screw clamps. However they don't appear to be workable for the tubes.

Would appreciate some thoughts,
thanks,Dick