What's the diff between OS 32F and 32SX?
 

OS doesn't publish a manual or exploded view of the 32F. I have one that needs bearings, and it appears the 32F and 32SX are different (as far as bearing part numbers go).

So what's the real difference?

RE: What's the diff between OS 32F and 32SX?
 

Keefer,


Both engines use the same rear bearing; a 6901 12x24x6 mm open bearing.

They also both have the same O/d front crankshaft (9 mm).
But the F engine uses a lower load 689Z 9x17x5 mm bearing, to the SX's 699Z 9x20x6 mm bearing.


This is probably to counter the tendency of some modelers to use badly unbalanced props and/or to 'perform' frequent prop-strikes, that abbreviate front bearing life...