There is a company that has made a modification to the starter adapter drive to eliminate the right angle drive that runs the vacuum pumps on IO-360. My mechanic has ordered one for my back engine and we should see it this week. It will be nice not to have the problems with the gears to deal with. If anybody is interested I will post there address on this web site.
Jim
N1871M
Added by Kevin from another message from Jim:
The web address is
http://www.niagaraairparts.com