40hp slow going, did I break a shear pin?

[Roscoe P]

I was easing along a little to fast and hit a rock out from St Marks and broke the tip of the skeg on my 2000 40hp Yamaha C40tlry 2-stroke. After that I could limp along but if I revved the motor up passed fast idle the boat didn't speed up at all and the motor seemed to just rev. I pulled the prop when I got home thinking shear pin but didn't see one. It shifts from forward to reverse fine, is there a shear pin somewhere I can't find? Thanks for any advice in advance.

[ausnoelm]

Haven't used shear pins for years, you probably have chewed out the rubber bush, (hub) borrow another prop to test, easy job.

[99yam40]

the prop can be rehubed at a prop shop. they press out the old and press in a new one.

or buy a new prop

[Roscoe P]

Thanks, I didn't know about rubber hubs, I'll have to try and find another prop. Can the bushing be replaced or is it better to trash the prop?

[ausnoelm]

If the prop is OK, as in, no bent blades or bad pieces missing, it can be rebushed, but, for a smaller outboard, it might be just as easy to just buy a new one.

[99yam40]

aluminum props are cheap.
if running a SS rehubbing cost are less that $100 compared to over $200 for new

[panasonic]

Buy a new prop and check to see if you may have bent the prop shaft as well...sounds like you gave her a good smack.

[Roscoe P]

Thanks for the advice and help. I didn't know they were made that way. The shaft looks good (no wobble) so I'll replace the prop and be ready again this weekend.