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

 
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