K&B parts

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Gary Lauer

Well-Known Member
Supporting Member
Joined
Mar 20, 2019
Messages
194
I recently bought a bunch of vintage rc boat stuff. there is a box of used K&B 21 parts. Also some new parts. I need to know how to idenitfy the crankshafts. Some have numbers, a letter L and plain. I dont know which goes with whitch engine. Any help would be appreceated. Thanks
 
The L is a 12mm diameter shaft, the 13 is a 13mm shaft. one without an L or 13 is an inboard shaft. The bearing in the front plate will be the determining factor. The front plate and bearing will tell all.
 
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