can you straighten a prop. shaft on a 50 hp yamaha with out taking it off the motor

**ichabod** · 08-24-2015, 05:42 AM

it is bent about 1/16 inch .has anyone done this with success?

**Cray** · 08-24-2015, 06:48 AM

Not going to get it done. To properly straighten a shaft you would need to remove, place in proper V blocks and use a press to straighten. Then check run out with dial indicator. Really hard to do on a short shaft. Better just go spend the money to get it replaced.

**kycreek** · 08-24-2015, 06:57 AM

**"G"** · 08-24-2015, 09:04 AM

Replace the shaft as well as the bearings races and seals as they could have been damaged when the shaft got bent.

**Eagle 1** · 08-25-2015, 08:34 AM

Had one straighten at a machine shop . Did not hold up . Wasted 300 dollars .

**fishn_a_ledge** · 08-25-2015, 11:11 AM

I have 2014 suzuki 250SS. I bounce off stumps all day long. I bent my first shaft at 9 hours. I pulled the shaft, took it to a motorhead friend, he straightened it. not a problem. I bought a new one and put it in on the fast. I have since bent 2 more. The dealer laughs at me because i have "revolving" prop shaft in back compartment. $15 dollars for new seals. Not a big deal. I am on my fourth straightened shaft. not a problem.

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