Raw Water Pump - Pulley on Shaft

[KS Dave]

I'm replacing the raw water pump on my Westerbeke 10Two as the old one had seized. I know I can rebuild it, but for the time constraints I have and the price delta (about $60), I decided to go new. On to my question...

The old shaft had a spot where the set screw from the pulley seated.


The new one doesn't have that (the mark you see is where I did an initial fit of the pulley).


Was that spot worn in over time, or should I use a drill and put a little notch in the shaft? Will the set screw work just fine gripping against the flat surface of the shaft?

Thanks!

 

[TAPH2O]

Do you have a spare hand crank
thanks

 

[KS Dave]

Do you have a spare hand crank
thanks

I don't understand your question. A hand crank for what?

 

[TAPH2O]

The engine if it is the westerbeke/bukh 10

 

[KS Dave]

The engine if it is the westerbeke/bukh 10

No - I don't know anything about a hand crank.

I'd still like some advice about my water pump shaft, if someone else has done this before.

 

[Afrakes]

It won't hurt to put a dimple in the shaft for the set screw to engage. That was not just a worn spot in the shaft. It was intentional.

 

[peaman]

.

 

[Prairie Schooner]

I don't know the setup you have, but could it be the absence of a divot allows you to adjust the pulley in or out to line up with the rest of the pulleys using the belt?

 

[KS Dave]

It won't hurt to put a dimple in the shaft for the set screw to engage. That was not just a worn spot in the shaft. It was intentional.

Thanks. That's what it looked like to me, too, but having zero experience at this, I thought it worth asking.

I don't know the setup you have, but could it be the absence of a divot allows you to adjust the pulley in or out to line up with the rest of the pulleys using the belt?

Good thought, also. Perhaps I should get everything aligned, then put a dimple in it. Here's what the old one looked like all together (top right pulley/pump):


A previous owner got REALLY happy with the red paint.

Appreciate everyone's help!