Quote:
Originally Posted by randlemanboater
Well, I pulled the prop.....it doesnt have a rubber hub, its the old style with a shear pin. "The shear pin was sheared".....with any luck, it didn't shear because of the gears popping out, (maybe it just finally gave out after 39 years) but I cant test it til next week......shear pins are 2 for $3 by the way.
I gave her a good scrubbing and patched the gouges on the bottom. It really cleaned up well. Looking forward to next Wednesday!
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It probably sheared from hitting a submerged log. (Shears the pin but the prop usually doesn't show damage) I'm betting that's your problem. Under a light load the prop was holding fast on the shaft, but under a heavy load, with the pin sheared, the shaft was spinning inside the prop, mimicing the forward gear popping out. Fix the pin before the shaft is damaged, put her in the water and enjoy the sweet ride. 
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1987 V20 w/1987 150HP Yamaha on a Shoreland'r Trailer
1978 16.5 Airslot w/1996 120HP Force on a Four Winns trailer
1996 V21 w/1993 200HP Mercury on a Shoreline Trailer
All towed by a 5.7L Hemi Durango.
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