fendo You are looking at the factory cut!

It is cut square so there will be no leak.

You are right in thinking that it will wear faster because of not being 100% contact
but look how much it would have to wear to become a leak on the other end.... answer .050"

Barry

NO BLUE this time... you are already having a bad day

 

Fit those ends and it will be even better. This isn't coming from my experience with building rotaries but that of a toolmaker. I've been involved in some small tool making and a lot of the parts are hand fit with hand finishing processes. Machined on CNC's as best could but known to still have to be guaranteed of proper fit by a human like me. Tolerance stack-up on a small scale will end your day.

I'm sure it's still Nth degree stuff but to say there is no benefit would be just as bad. Things only need to be as good as the rest of the assembly is. Seals (even in other type machines) are usually a cut above anyway. Total seal piston rings anyone?

 

Aaron Cake has instructions on how to trim side seals in one of his YouTube Videos.
he uses a Dremel attached to his work bench and a lot of patience.

 

I'm another zero clearance guinea pig. If I can ever get the car finished haha. Thanks again for the work Barry

 

Looking good Andre. Just make sure all of the seals spring back smoothly when depressed. We can trim another .001" any offending seal.

TonyD89 is right... the fit is everything... or the devil is in the details.

The next area for improving the compression sealing is the apex to housing interface.