Morgan 33 O.I. Perryville
Join Date: Dec 2010
Thanked 195 Times in 174 Posts
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Re: Need an engine part that apparently doesnt exist anymore
The prop is held in place by the shear-pin, and the shear pin is held in place by the back end of the prop hub. Take a close look at the back of the prop - you should see a slot cut in the back face of the prop. This is where the shear pin fits in place. When the nut is tightened, the shear pin is seated at the back of the prop. The castle nut is kept in place by the cotter pin that passes through the openings in the castle nut and also through the prop shaft.
Hope this helps,
Last edited by travlineasy; 07-14-2012 at 11:39 AM.