Can I cut this off?

phat46 · April 18, 2021, 03:41:50 PM

I cobbled up a sheet metal fan shroud for my car. Fits the rad well, but it touches the front of the P.S. pump. I wonder if I could cut this part of the pully off, it would clear then. There's nothing inside for about a half inch.

WZ JUNK · April 18, 2021, 05:03:56 PM

No, not if you intend to remove that pulley sometime in the future. The puller to remove and instal that pulley clamps into that groove.

John

phat46 · April 18, 2021, 05:52:59 PM

Quote from: "WZ JUNK"No, not if you intend to remove that pulley sometime in the future. The puller to remove and instal that pulley clamps into that groove.

John

Yeah I kinda thought that what it was for. I highly doubt I would ever pull that pulley, if that pump went bad I would probably just get a whole new pump and pulley. The alternative is to cut a section out to the bottom of the shroud and let that pulley end spin inside the shroud.

WZ JUNK · April 18, 2021, 07:15:19 PM

Quote from: "phat46"
Quote from: "WZ JUNK"No, not if you intend to remove that pulley sometime in the future. The puller to remove and instal that pulley clamps into that groove.

John

Yeah I kinda thought that what it was for. I highly doubt I would ever pull that pulley, if that pump went bad I would probably just get a whole new pump and pulley. The alternative is to cut a section out to the bottom of the shroud and let that pulley end spin inside the shroud.

Most of those pumps require that you remove the pulley to access the bracket that mounts them. The earlier pumps where held on by threads and not a press on and off fit. I feel your pain.

kb426 · April 18, 2021, 07:23:42 PM

I agree with John. Every time I try to take a shortcut anymore, I eat dodo and die. When I was young, I could get away with lots of stuff. I guess I killed the lucky rabbit.

Your results may vary. LOL.

GPster · April 18, 2021, 08:12:19 PM

[quote="phat46"[/quote]
Yeah I kinda thought that what it was for. I highly doubt I would ever pull that pulley, if that pump went bad I would probably just get a whole new pump and pulley. The alternative is to cut a section out to the bottom of the shroud and let that pulley end spin inside the shroud.[/quote] It sounds to me like this would be a good time to get a new pump and pulley. GPster

phat46 · April 18, 2021, 08:21:51 PM

Quote from: "WZ JUNK"
Quote from: "phat46"
Quote from: "WZ JUNK"No, not if you intend to remove that pulley sometime in the future. The puller to remove and instal that pulley clamps into that groove.

John

Yeah I kinda thought that what it was for. I highly doubt I would ever pull that pulley, if that pump went bad I would probably just get a whole new pump and pulley. The alternative is to cut a section out to the bottom of the shroud and let that pulley end spin inside the shroud.

Most of those pumps require that you remove the pulley to access the bracket that mounts them. The earlier pumps where held on by threads and not a press on and off fit. I feel your pain.

This one is on a bracket I made myself. I just had it off to mount to the new engine, no need to take off pulley. It might be easier to just cut the shroud, it only needs to go about up about 2" into the shroud, about 1/4" in. I thought about making a small box set into the shroud for the pulley snout too.

enjenjo · April 18, 2021, 09:21:31 PM

You need a pulley that is 1/2" shorter. Post the length and diameter of the one you have and I will dig through my box of power steering pulleys.

phat46 · April 18, 2021, 09:58:41 PM

Quote from: "enjenjo"You need a pulley that is 1/2" shorter. Post the length and diameter of the one you have and I will dig through my box of power steering pulleys.

.

Will that change the location of the belt? I'm also fighting belt alignment issues. Right now the pump lines up with the crank pulley, like it did on the motor that came out, but not with the water pump. The water pump needs to come out 1/2" to line up with either the crank pulley or the p.s. pump. I have spacers on the way.

enjenjo · April 18, 2021, 11:46:17 PM

give me the front to rear depth of the pulley, and the diameter. Also how far the end of the shaft is from the front surface of the pulley. If you push the pulley to the right location when you install it, it will line up with the crank pulley

How deep is the water pump pulley and the diameter? GM made about a million pulley combinations. any part number visible on the pulleys?

phat46 · April 19, 2021, 08:11:20 AM

Frank, the pulley is 2 1/4" deep, 5 1/2" dia. It has 73873 IM. M stamped on it and C O over S 3 The pump shaft itself will accept a hex key.

The shaft is 5/16" inside the snout of the pulley.

enjenjo · April 19, 2021, 09:40:53 AM

I'll dig through the box.

enjenjo · April 19, 2021, 07:53:21 PM

I did not get a chance today. I went to Lima oh and drug a lathe out of a basement. When I got home I had to make room for it in the storage building.

phat46 · April 19, 2021, 08:29:17 PM

Quote from: "enjenjo"I did not get a chance today. I went to Lima oh and drug a lathe out of a basement. When I got home I had to make room for it in the storage building.

No prob. Still waiting on water pump spacers anyway. Have they finished construction at I-75 and 68 in Findlay yet?

enjenjo · April 19, 2021, 11:24:12 PM

Quote from: "phat46"
Quote from: "enjenjo"I did not get a chance today. I went to Lima oh and drug a lathe out of a basement. When I got home I had to make room for it in the storage building.

No prob. Still waiting on water pump spacers anyway. Have they finished construction at I-75 and 68 in Findlay yet?

I didn't go that way, it would have added 22 miles to the trip, and took about the same time. I went local roads to HC424 to SR109 to SR65 into Lima. The place I was going was one block off SR65