Engine Alignment Question

[Briankinley2004]

I would assume that the shop is saying the shaft is NOT straight and that there is an 11 thousandth run out at the coupling end and 15/1000 at the prop end. So I think you will not be able to get the alignment at he coupling in spec. Why didn't they straighten the shaft when they had it in the shop?? ................PAT

Not sure why. They did a "shaft recon" and charged me about $600 for that and another $100 to fit the coupling. It is a 2 1/2" shaft if that makes any difference. It was General Propellor. They are a pretty reputable place. They did recommend it be replaced at a cost of 8K but everyone I talked to at the yard said they always say that.

 

[Captain Ralph]

We had a shaft straightened. it was recommended to be replaced but we did not have those funds at the time. About a year later I needed to apply some tall horsepower to that prop in St Johns inlet,, The bend came back and vibrated just as before.
Almost a couple of years ago, we finally replaced that shaft.
Wow, a whole new boat.