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[C1] Water Pump Install

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Old Feb 6, 2017 | 09:18 AM
  #41  
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Originally Posted by 59BlueSilver
Here are the pulleys I bought. I'm not a Chevy guy so I knew it would be hit or miss.

https://www.ebay.com/itm/262030396368

http://www.ebay.com/itm/142230710417
I'd lose that WP pulley. I don't know what it is, but I think it's the source of your alignment problems.

IF your crank pulley is this one:



crank pulley 250/300 HP

... then the water pump pulley you want to use is this one:



WP pulley 250/300 HP

As for an alternator bracket, well, I think using stock bracketry for driver's side alternators would automagically result in pulleys which align. Look for brackets for, say, '63-'64 with factory A/C.

Jim

Edit: The deep groove WP pulley I suggested in my earlier post (#35) is the same pulley John (Plasticman) recommended (in posting #29). This pulley is NOT compatible with the crank pulley I recommend in this posting because the spacing of the grooves is wider on the deep groove pulley.

Last edited by jim lockwood; Feb 6, 2017 at 10:43 AM.
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Old Feb 6, 2017 | 12:20 PM
  #42  
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Originally Posted by jim lockwood
I'd lose that WP pulley. I don't know what it is, but I think it's the source of your alignment problems.

IF your crank pulley is this one:



crank pulley 250/300 HP

... then the water pump pulley you want to use is this one:



WP pulley 250/300 HP

As for an alternator bracket, well, I think using stock bracketry for driver's side alternators would automagically result in pulleys which align. Look for brackets for, say, '63-'64 with factory A/C.

Jim

Edit: The deep groove WP pulley I suggested in my earlier post (#35) is the same pulley John (Plasticman) recommended (in posting #29). This pulley is NOT compatible with the crank pulley I recommend in this posting because the spacing of the grooves is wider on the deep groove pulley.
A good point to check, however, if the WP pulley moves back the necessary .25", it will rub on the WP housing. I dry installed everything including the A/C compressor and it seems to line up pretty well. I think (I hope) the spacer will resolve my problem. I don't know yet about the groove depth & width.




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Old Feb 6, 2017 | 01:11 PM
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Bill
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Old Feb 6, 2017 | 03:02 PM
  #44  
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Originally Posted by 59BlueSilver
A good point to check, however, if the WP pulley moves back the necessary .25", it will rub on the WP housing. I dry installed everything including the A/C compressor and it seems to line up pretty well. I think (I hope) the spacer will resolve my problem. I don't know yet about the groove depth & width.
The correct pulleys won't rub on the water pump, if the pulley flange is in the correct location on the pump shaft. You might check that it is.

In my opinion, you ought to resolve the crank pulley/water pump pulley alignment first. Then get the alternator alignment right. And lastly, the compressor alignment.

If you use correct, Corvette pulleys for the crank and WP, belt alignment between the two fall into place automagically.
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Old Feb 6, 2017 | 03:51 PM
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Originally Posted by jim lockwood
The correct pulleys won't rub on the water pump, if the pulley flange is in the correct location on the pump shaft. You might check that it is.

In my opinion, you ought to resolve the crank pulley/water pump pulley alignment first. Then get the alternator alignment right. And lastly, the compressor alignment.

If you use correct, Corvette pulleys for the crank and WP, belt alignment between the two fall into place automagically.
Yes, the WP pulley is tightened down where it should be. If everything lines up, and it appears they are, then it's going to be a lot simpler to just use the spacer, right?
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Old Feb 6, 2017 | 04:00 PM
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Okay, just bought a 63 corvette alternator bracket that attaches to the drivers side exhaust manifold ear. Bolts up fine and aligns with the back groove of the pulleys. Probably where they were in stock configuration but I'm going to run the compressor in the back groove. The alternator in the front groove which is approx. .7" forward.
Any ideas on that? What bracket did the 63 Vette use if running air?
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Old Feb 6, 2017 | 05:03 PM
  #47  
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Originally Posted by 59BlueSilver
Yes, the WP pulley is tightened down where it should be. If everything lines up, and it appears they are, then it's going to be a lot simpler to just use the spacer, right?
I think you mis-read what I wrote. The flange to which I referred is the thingy on the water pump shaft. It is pressed on and can, with the application of sufficient force, be re-positioned fore/aft. Nothing. to do with whether or not the WP pulley is tightened down.

Simpler to use the spacer? Can't say. It's definitely NOT how I would approach the problem. My starting point for such projects is always to use original GM parts. They fit correctly. They are better engineered than aftermarket parts. Problems are kept to a minimum.

Jim
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Old Feb 6, 2017 | 07:12 PM
  #48  
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Originally Posted by jim lockwood
I think you mis-read what I wrote. The flange to which I referred is the thingy on the water pump shaft. It is pressed on and can, with the application of sufficient force, be re-positioned fore/aft. Nothing. to do with whether or not the WP pulley is tightened down.

Simpler to use the spacer? Can't say. It's definitely NOT how I would approach the problem. My starting point for such projects is always to use original GM parts. They fit correctly. They are better engineered than aftermarket parts. Problems are kept to a minimum.

Jim
I agree, I would always rather use GM parts if possible. I didn't know you could move that flange, I'd be afraid of damaging the seal. Can it be moved as much as 1/4"?
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Old Feb 6, 2017 | 08:19 PM
  #49  
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Originally Posted by 59BlueSilver
I didn't know you could move that flange, I'd be afraid of damaging the seal. Can it be moved as much as 1/4"?
You wouldn't re-position the flange with the pump assembled. It comes apart and the pump shaft must be securely supported. Then, using a press the flange/hub is repositioned as needed. Any shop which re-builds water pumps can do it.

What you would want to do is to measure the distance from the pump mounting surface to the pulley mounting surface of the hub and verify that it is or is not correct.

BTW, been looking for the following picture this afternoon. It shows how a stock, deep groove '63 pulley looks when mounted on a C1:

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Old Feb 7, 2017 | 06:35 AM
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Originally Posted by jim lockwood
You wouldn't re-position the flange with the pump assembled. It comes apart and the pump shaft must be securely supported. Then, using a press the flange/hub is repositioned as needed. Any shop which re-builds water pumps can do it.

What you would want to do is to measure the distance from the pump mounting surface to the pulley mounting surface of the hub and verify that it is or is not correct.

BTW, been looking for the following picture this afternoon. It shows how a stock, deep groove '63 pulley looks when mounted on a C1:

What is that measurement, do you happen to know?

I'm looking at the relationship of rear of pulley to the engine mount bar compared to mine. Doesn't appear to be that different, but pics can be deceptive. Need an actual measurement, but that may not be possible.

Besides, as you can see from my pic, the WP pulley lines up with the compressor mounting as supplied by Vintage Air. The only thing out of whack is the crank pulley which has to use the spacer. If anything needs to change, it's that. Am I missing something?
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Old Feb 7, 2017 | 07:52 AM
  #51  
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Norm

I presume you have ordered the spacer.... let's all table any further discussion til you try it.

Bill
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Old Feb 7, 2017 | 09:33 AM
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Originally Posted by wmf62
Norm

I presume you have ordered the spacer.... let's all table any further discussion til you try it.

Bill
Yes, I did, Bill, should be here tomorrow.
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Old Feb 7, 2017 | 10:33 AM
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Old Feb 7, 2017 | 11:44 AM
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Spacers have their place (body, carb, wheel). . Pulley spacer looks good as a solid mechanical fix to address the pulley alignment problem.
​​​​​​​John
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Old Feb 8, 2017 | 11:50 AM
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While I'm waiting for my spacer to come in, decided to work on relocating the alternator to the drivers side. It seems the brackets Vintage Air sent me, and other bracket manufactures as well, interferes with the forward "ear" of my exhaust manifold. Anybody use the ear for an alternator brkt on a C1? I can't make it work. May be okay for a C2, but not a C1.
Anyway, not wild about grinding the ear off, afraid it will look cobbled up. I see some manifolds on Ebay, not sure which to get. Anybody tell by my pics?




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Old Feb 8, 2017 | 11:58 AM
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I don't see the problem. Are you trying to use the accessory bolt holes in the cylinder heads to mount the alternator?
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Old Feb 8, 2017 | 01:54 PM
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If it were me, I'd come up with a bracket to mount to the two existing threaded holes in the exhaust manifold. My wife's 60 has an alternator on that side and I think that's how the alternator is mounted. I'll try and get a photo or two for you so you can see how it's done. They mounted a power steering pump on the passengers side where the generator would normally be so the alternator had to be relocated to the drivers side.

Last edited by HilltopClassicCars; Feb 8, 2017 at 05:47 PM.
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Old Feb 8, 2017 | 02:37 PM
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Originally Posted by HilltopClassicCars
If it were me, I'd come up with a bracket to mount to the two existing threaded holes in the exhaust manifold. My wife's 60 has an alternator on that side and I think that's how the alternator is mounted. I'll try and get a photo or two for you so you can see how it's done. They mounted a power steering pump on the drivers side where the generator would normally be so the alternator had to be relocated to the drivers side.


but there are Alan Grove brackets that will work that do not have to use the manifold holes, or interfere with the manifold mounting boss.

Bill
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Old Feb 8, 2017 | 02:42 PM
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Just ran out to the garage and got some photos for you of our 60 with the alternator on the drivers side. It was like this when we purchased it so I don't know where the bracket(s) came from but they look like commercially produced parts rather than a home-brew. Hopefully the photos will help you find what you need and/or others will chime in when they look at them and possibly recognize them. If you need any measurements, let me know and I'll get them for you.












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Old Feb 8, 2017 | 02:44 PM
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lol... driver's side...

Bill
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