Anyone who has had some experience with this or a similar setup:

What kind of end-clearance wound be required between these collars and the rockers, and what kind of shaft clearance internally for oil pressure?

Would it be worthwhile machining some up out of ally stock, or would brass be better.

Might have a crack at making some

Quote:Now that IS interesting. I wonder if you could explain in detail how that happens & where you measure the pressure to demonstrate that it really does.

Question answered here:

Rocker Spacer Discussion

that link dont explain anything about answering the question??

there bushs to remove the springs for high rpm motors.

Hello,
This engine turns around over 10000rpm.