Marinette Boat Forum

The pump is a Sherwood d-60. I am a machinist and in my mind the pulley has to come off. Either on a key way or on a spline. Even the pictures I see online show the pump without the pulley on it. But, the guy that owns the yard I am storing it at says if it comes off the pulley is junk. I don't know if he is being honest or shady to try to get more business for himself.

https://www.dropbox.com/s/ibt2my1yhwg49 ... 5.jpg?dl=0

https://www.dropbox.com/s/nuat7d2zg97lc ... 4.jpg?dl=0

https://www.dropbox.com/s/zqypdtuebvwbl ... 5.jpg?dl=0

Probably correct; it might distort being pulled off.

Why are you removing the pulley? (If the unit needs a rebuild, you're better off by far buying a new unit for the rebuild kit is expensive.) The pulley does not have to come off to change the impeller.

Jeff

Getting the pulley off would give easy access to the retaining bolts. They are recessed in the bracket and I am having a hard time getting to them. The new models have holes in the pulley to give access to the bolts. I was going to pull the whole bracket off and the tech also informed me it is not just bracket it is the cover for the timing chain. So that"s not a good idea either. I talked to a previous owner of the boat and he couldn't remember how he got it off but did say that the last time the impellers were done was probably close to 8 years ago so It's way past time.

I've added images above as asked for! Thank you.

That pully looks like it is pressed on you need to remove the entire pump from the engine. If you are just changing the impeller there is no need to remove the pully. The pump still needs to be removed from the engine. I replaced my bearing on my water pump it was difficult to press the pully off. This year I just replaces both pumps.

Good Luck!
Bob

bobv wrote:That pully looks like it is pressed on you need to remove the entire pump from the engine. If you are just changing the impeller there is no need to remove the pully. The pump still needs to be removed from the engine. I replaced my bearing on my water pump it was difficult to press the pully off. This year I just replaces both pumps.

Good Luck!
Bob

There is so little clearance behind the pully. What tool can I use to get the bolts out?

All the water pump pulleys I have seen on the chryslers were either held on with a set screw on the back side or a snap ring on the front side. I know there was two shaft sizes used in early years and one was discontinued.

My parts book shows the D-60 to have a snap ring groove on the end of the shaft.

Looks like you have plenty of room in front of your engine. I would get a 1" hole saw and make a couple of access holes in that pulley. Won't hurt it, just measure twice.

I had the same style on mine only with the holes and I also have a machine shop and still destroyed the thing getting it off. If you do the same and have to order a new one look for the old style cast pulley much much better. If you have to go with the new sheet metal and welded hub if its anything like mine you will have to machine both sides of the hub one side to make the clip work and the other to make it run true to the other pulleys or the belt will be in a bind. plus they have a set screw.

My pullys also had a C clipand a set screw, they still needed to be pressed off and back on, a real pain.
Bob