Paul wrote:

I just had another idea. I think one can carefully bore a 1.25 inch hole
about three inches deep in the exhaust side of the pump. Press and epoxy
in a six inch long sleeve that mates up with the outlet from the block. This
will block off the internal  bypass channel in one fell swoop. This should
leave about an 1/8 material on both sides of the tube. The top of the stock
pump will be sawed off.

OK here is the picture.

Certainly not as sexy as an all new pump but down to earth and practical.
Can be welded in if you don't trust the epoxy.

Paul Lamar
 
The Aircraft Rotary Engine Newsletter.              Powered by Linux.

http://home.earthlink.net/~rotaryeng/            http://www.linux.org