Old message from the CD.
I was wrong!!!
The Marcotte PSRU DOES fit the 20B, if you do it right. They haven't gotten
the written instructions out yet.
What you have to do is (on the 13B, too) pull the big round aluminum disk
out of the PSRU, it becomes the new flywheel (pull the torsion dampers out of
their holes), get a ring gear from a standard transmission flywheel, and heat
shrink it onto the disk tight against the shoulder that is provided. You now
have a new aluminum flywheel that does fit the housing. A standard
transmission starter should work. You cannot use the original 20B starter
with this setup.
You do not use the flex plate flywheel at all.
Looks like it should work fine.
Bob Darrah
The Aircraft Rotary Engine Newsletter. Powered by Linux.
http://home.earthlink.net/~rotaryeng/ http://www.linux.org