I managed to acquire the heart break of a bent shaft... I've done some searches and seen differing numeric values on how much run out is acceptable.
I have the Sealoc manual that covers this motor but I can't seem to locate the value in it anywhere...
Here's the specifics.
2008 Yamama 20 HP 4 stroke outboard (F20ESH) with that sweet, sweet electric starter.
The shaft was .038" out of round measured at the end of the prop shaft just before the prop nut threads begin.
Using a porta-power I've applied force to the high side of the shaft at increasing shaft deflection values and leaving the force applied for as much as an hour.
I got .005 gains 3 times, and then smaller and smaller gains to the current .015 out of roundededness where I stopped for the night.
Any thoughts or data on what value I should shoot for (other than zero, that would work I'd bet) ???
here's my rigging:
