prop shaft runout?

[av8erdunn]

Does anyone know what the max prop shaft runout is on a DP-SM lower unit?

 

[Bondo]

Ayuh,.... Basically, if it's visible, it's Too bent,....

Merc says .005" is the limit,...

 

[Ostsideend]

I guess you are having a VP?

Volvo says for 280DP, 290DP and DP:
0,0027" max runout gauged from the outer (tubular) to the inner shaft.
0,0012" slack when pressed the inner- towards the outer shaft.

 

[jerryjerry05]

Like Bondo said.
If you can see it wobble it's too far gone.

 

[av8erdunn]

But if volvos specs for max run out only 0.010 you would never see that with a naked eye. That's why I will use a dial indicator to measure.

 

[jerryjerry05]

You'd be surprised what your eyes can see.
Remove the prop and start it up.
Put it in gear and see if it has ANY wobble.

I was doing a LU service on one of my motors.
I removed the prop and greased the splines.
For some reason I spun the prop and noticed a big wobble.
Luckily it was just the prop and I had a spare.
Somehow the hub/ prop slipped or I hit something and it moved???