elmer

Bax,

I am considering buying a 140RX to replace an old YS motor and need some info
on the diameter of the crankcase casting on this engine directly behind the
prop drive hub. I need this info to see if the OS will fit the existing nose
ring in the plane I have.

Also, please can you tell me where I might find information on all dimensions
for the OS made header for this motor.

Thanks,

Elmer.

Bax

My Feedback: (11)

The diameter immediately behind the drive washer is 33mm.

The stock O.S. Max header for the 1.40 RX is:

Length - 226.5mm (8 15/16")
Diameter outside - 20mm
Diameter inside - 18mm