I'm looking at buying a 13b 4 port dellorto'd Rotary Engine PickUp. The owner says the motor smokes at idle, sometimes a LOT. But when you drive it the smoke isn't nearly as bad. The motor was resealed earlier this year and I can only assume it was done correctly. When oil control rings start to go the motor typically smokes all the time, especially during shifts and a lot of smoke when DOWNshifting.

My guess is the oil metering pump is stuck open and too much oil being injected into the carb at idle. When at speed the mixture is more accurate and thus less smoke

Your thoughts? This is a decent REPU at a good price.



-bp-

 

Why not just stick your hand down there and see if the OMP moves freely? Then you'll know if you're right.

Are you sure the smoke is oil?

 

The truck is 600 miles away so I can't see it. Don''t know if it's oil, could be water seals taking a dive or pinholed rotor housing grooves for all I know.

Just lookin for ideas.

-bp-