Prop drive issue, again!

[Dadoffive]

So since my last post where I thought all that happened was the locking nut on the end of the output shaft had backed off. I purchased a new locking nut and washer and tightened everything back down to correct specs. Well this weekend I finally got it back out on the water. Seemed to be doing ok at idle. Then I went to throttle up, boat started to come up and all of a sudden I lost all drive again. Somehow made it back to the dock and back on the trailer. Upon investigation I found where the prop slides onto the bushing there are 4 grooves in the prop that is supposed to lock onto the bushing. However upon tightening the bronze nut (tab washer receiver) I found that the bushing is being pulled up past the grooves on the prop which then means the prop no longer has drive. It seems I have too short of a bushing for where the prop goes on. The splines on the bushing where it goes onto the output shaft are perfect. PLEASE HELP BEFORE I SET FIRE TO THIS THING AND COLLECT THE INSURANCE $$!

 

[Bt Doctur]

somethings wrong there, the prop does not slide onto a bushing .the thrust hub goes on first. this prevents the prop from going too deep on the shaft.
the prop either has a rubber hub pressed into it or has the flo-torq plastic hub inserted into the back of the prop. Then the prop is installed onto the prop shaft and the bronze insert(3 inches long) goes in from the front of the prop., If a rubber, hub the bronze lock collar (3/4 of a inch) the lockwasher and then the nut .

 

[Bt Doctur]

somethings wrong there, the prop does not slide onto a bushing .the thrust hub goes on first. this prevents the prop from going too deep on the shaft.
the prop either has a rubber hub pressed into it or has the flo-torq plastic hub inserted into the back of the prop. Then the prop is installed onto the prop shaft and the bronze insert(3 inches long) goes in from the front of the prop., If a rubber, hub the bronze lock collar (3/4 of a inch) the lockwasher and then the nut .

 

[Dadoffive]

somethings wrong there, the prop does not slide onto a bushing .the thrust hub goes on first. this prevents the prop from going too deep on the shaft. the prop either has a rubber hub pressed into it or has the flo-torq plastic hub inserted into the back of the prop. Then the prop is installed onto the prop shaft and the bronze insert(3 inches long) goes in from the front of the prop., If a rubber, hub the bronze lock collar (3/4 of a inch) the lockwasher and then the nut .

Well thanks for the pic. As they say "a picture is worth 1000 words"! The black rubber bushing is what is missing, at least any of it where is meets the bronze bushing is supposed to slide into it. Is there a way to press in a new bushing into the prop?

 

[Bondo]

Well thanks for the pic. As they say "a picture is worth 1000 words"! The black rubber bushing is what is missing, at least any of it where is meets the bronze bushing is supposed to slide into it. Is there a way to press in a new bushing into the prop?

Ayuh,..... If it's a black Rubber bushin', ya gotta bring it to a Prop Shop to rehub it,....

If it's the Flo-Torque, black Plastic hub, go buy a new 1, beat out the old 1, 'n install the new,....

 

[jester31]

Ok, 1st the thrust washer goes on, it has a tapered center hole to match the shaft (it can only go on one way), this is the solid base for the prop, Next the prop goes on, along with the rubber hub (whether it's separate, or part of the prop), then the lock collar with the notches facing out, then the lockwasher, finally the prop nut. Once the prop nut is tightened to specs, the lockwasher tabs are then bent over into the lock collar to keep it all together. Did you bend over the lockwasher tabs to lock everything on?

 

[jester31]

Ok, 1st the thrust washer goes on, it has a tapered center hole to match the shaft (it can only go on one way), this is the solid base for the prop, Next the prop goes on, along with the rubber hub (whether it's separate, or part of the prop), then the lock collar with the notches facing out, then the lockwasher, finally the prop nut. Once the prop nut is tightened to specs, the lockwasher tabs are then bent over into the lock collar to keep it all together. Did you bend over the lockwasher tabs to lock everything on?

P.S. They do make thicker thrust washers, maybe you need one of those?

 

[Dadoffive]

Yea I did all that but dense plastic prop hub is all chewed up. I can live with that since the new prop hub kit is about $35. Or I can just get the plastic piece of $18. Cheap and easy repair. Thanks for the help.

 

[Bt Doctur]

most likely got chewed up by being a bit loose. there designed to shatter if you hit something substancial