Xterrable

I just received my new Stewart Stage II Aluminum water pump today. When I test fit everything up, I notice that the stock pulley rubs the housing at the heater house fitting. I mean it just makes contact. Has anyone had this problem? I was going to get an aftermarket billet pulley, will this help? Should I slightly grind away the point where the contact is made? Do they make shims? Im talking 1/16 would be more than I need to clear it.

Also, where can I get a new heater hose fitting and plug for the yop of the pump.

Thanks

- X

Xterrable

It is a Stewart 23103 Pump on a 74 SBC...

noonie

Its common with them, just grind a little to fit. There's plenty of meat there.

JimT

You can grind it, or you can purchase waterpump shims that will move the pulley away from the pump housing. They come in a 3-pack, different sizes, and fit between the pump pulley and the pump shaft. I bought mine at Auto-Zone - less than $5.00.

Rebelrob

I had to file my edlelbrock wp back a tad because it was rubbing the fan pulley.

Xterrable

Ok, I saw a few other posts on the topic. Guess it is somewhat common.

Any ideas if a new pulley would help? Was going to get one to dress the front up a bit. Should I stay away from the 50 dollar ones I see on Jegs and eBay for fear of poor quality?

Any where can I get the plumbing hardware from?

JimT

I would think most pulleys are fine - they are all one piece stamped metal. Plumbing fittings can be found at any hardware store, or the usual car parts stores.

Xterrable

If I get a new pulley, I would go wth an Aluminum machined one. Some people have said that the cheap ones are junk and may have quality/balance issues.. I dont see how if they are machined.

anips

let me guess the heater hose boss doesn't have a indentation like chevy pumps have and its rubbing on the back of the pulley, once you file it its yours, I had the same problem with another after market pump odds are made in China, I returned it and got a Edel pump and it fit right, the heater boss may look thick but remember its Alum. and if you deduct for the 1/2" pipe threads cut into it its really not that thick I was worried about cracking when I tighten the hose adapter in if I filed on it, the spacer kit comes in 1/16, 1/8. 3/16 or a combination there of, you might be able to get away with a 1/16 wp shim anymore then that most likely you will have to shim the rest of the pullies, the plug for the top of the pump is I believe 1/2" pipe, another thing to think about on those billit pullies are they are about a 1/4" thick at the mounting, make sure you have more than a 1/4 from shaft flange to the end of the shaft so you have enough shaft to center your fan, I've seen people have problems when shimming a billit pulley.

gkull

I tried to find my pictures of how I machined my water pump on a verticle mill

noonie

Here is a Stewart's pump machined.
Stud bosses for the oem a/c mount were also corrected.

gkull

I used common pipe thread bass plugs.

Machined on a Vertical mill for pulley clearance