What's new
Van's Air Force

Don't miss anything! Register now for full access to the definitive RV support community.

Oil Leak

KRAUSEGB

Well Known Member
Yesterday I notice a drop of oil on the bottom of the #2 cylinder head. Thought at first it was coming from the valve cover but after wipe and run of engine, the oil was present again. It does not appear to be coming form the valve cover but is forming at aft most cooling fin.
Thought it could be a blown head gasket but after research, there is no head gasket on the Rotax engine.
Pulled plugs and found them to be very black. Checked #4 ,they were normal.
After start up engine runs smooth as I remove the choke but them runs very rough for maybe 15 seconds then smooths out.

Any ideas?

270 hours on engine

Gary
 
. . . "It does not appear to be coming form the valve cover but is forming at aft most cooling fin."

"Any ideas?"
Check both ends of the respective oil return tube. You may have to use an inspection mirror, especially on the outboard end of the tube. They are sealed with rubber "O" rings.
 
Back
Top