CLofthouse

If a ss prop is bent but no vibration is the shaft bent as well. Replace ?

Mr Gadgets

Only way to tell is to measure the run out. Hard to do with the splines/threads on the end. Should be less than .003"-.005" if I remember correctly. How much damage was done to the prop??

CLofthouse

SS speed prop had 2 blades severe damage. My brother put on another prop and seems to run ok not much use in last 3 yes since damage. I am buying boat and concerned about further damage. Is that possible.
Thanks

Shag555

Do you or he have the ability to run it out of the water (IE rin on a hose)?

If so, pull the prop, start it up, and put it in gear while idling. If the shaft is all over the place, you know its gonna need replaced, or at the very least, straightened. Keep someone at the key and dont get too close.

Griff

If its been run in the water for several hours, then it should be ok. If it was bent badly and run for any length of time, it would have taken out the propshaft seal or vibrated itself to death.