Jerry M Williams wrote:

 Hi all,

 I was told there are a couple of OMC engineers that look at the site from
 time to time. Well, here goes. I bought a 1973 OMC RC-35-Q Rotary engine
 to go into my Hummelbird. It is 35 hp, air cooled, takes two cycle oil,
 has 1250 miles and is in really fine condition. There is light carbon
 build up on the rotor and surface dirt. It was running a year ago when
 the guy I bought it from started it when he bought the Evinrude snowmobil
 he bought with it in it. looking down the carb it looks brand new aand
 the needle valve is not even worn. the starter gear/flywheel have seen
 very little usage. With the starter and cooling fans still on, she weighs
 a hefty 71 lbs. In it's day, it was a true gem of an engine. I think it
 still is , and wish more than 17000 were built-mine is 11578.

 I guess what I need is a little help. I am an A&P, but that helps me
 little here, and besides, I never even seen a rotary taken apart except
 in pictures. I do have more than average mechanical Know-how. As a
 proffession, I am an Avionics tech in the Navy. The only picture I saw of
 this engine before it showed up is of a cut model of its 45 hp brother.

 These engines came in Evinrude and Johnson sleds in I think 1972-1974 or
 5. Are there any ideas on a PSRU out there? I have no way right now of
 accessing a machine shop. I may be able to find a hook-up on base, but I
 will need to give the operator as good drawing. I would rather just
 direct drive this engine. I would have to do it on the fan end of the
 shaft I think to turn the prop right. On the other end of the eccentric
 is about a 5 inch long splined shaft. I kno the thrust bearing is on the
 fan side and I am bout to pull the housing apart in my auto hobby shop
 and examine it. I have the factory EVINRUDE manual and it describes in
 detail and gives tips and steps on anything about this engine. The plane
 takes a 46 X 34 prop on the 1/2 vW it was designed for, which turns out
 to be about 2/3 the price of 6k for this wonderful little airplane. Any
 advice is truly appreciated.
 Thanks,
 Jerry

   Hi Jerry
  If you want to build a cog belt redrive I can make custom pulleys.
  Check out my web site and you can see some of the pulleys that I have made.

  Ken Welter
  http://homepage.mac.com/rotarycoot/

 
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