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River Rat

Hit something today

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River Rat

We hit a submerged stick/log today and immediately felt a pretty strong vibration and lost speed. I immediately backed off the throttle and dropped the skier. I put the boat in reverse at idle to clear out anything still hanging on to the tracking fins and throttled up again to see if the vibration had stopped. It was much better, and the riders in the boat said they couldn't feel anything, but driving the boat I could still feel a bit of shaking/vibration. Felt like it was coming off the prop, and I was resigned to change out a buggered prop. Got the boat on the trailer, and on inspection, can't find anything out of whack. The prop looks great, the tracking fins are tight, the shaft is smooth, and the rudder looks normal. The ends of the cotter pin were sheared off and the speedo pitot was popped up, but other than that, everything looks good. Question is, where to start to find out where the vibration comes from? I can change out the prop but from the looks of the one on the boat--it doesn't seem to be the problem. Now I am almost wishing the prop had a ding in it...

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radioman

it will be the prop. i have bent the blades on 3 or 4 props without a ding or scracth. i bent one one day that would shake your teeth out and it looked fine

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D-GOOSE

Its the prop. Once you take it off and look at it on a table you will see some extra bends.

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River Rat

Thanks guys--it will be swapped out tomorrow!

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zzbutler

make sure the bolts that attach the drive shaft to the transmission are tight. i lost my bolts last year and it did some damage.

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Bill_AirJunky

Assuming it's a brass prop, then the prop is the problem.

If you have a stainless prop on there, then you have more series problem up the drive train.

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dhcomp

Another vote for teh prop, change it out and you will be fine

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whitlecj

Gotta be the prop.

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obski

Been there, done that.

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River Rat

Pulled the prop off today and you guys were right on the money!! The prop still looks brand new--but one of the leading edges doesn't have the same cup as the other two. No dings or nicks so probably easy to fix. Spare prop back on and ready to go again. Once again, thanks for the sage advice!!

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