serpentine/vbelt pulley?

[BMAN]

Anybody ever welded a V-groove pulley to a serpentine pulley with success?

I'm planning to run a serpentine setup on my small block but would like to add a york and an additional alternator for an OBA and OBW setup. I would prefer to run them both as V-belts so that they aren't always dragging on the system. I am thinking of welding a double V-groove pully to my Water pump pully to accomplish this.

Do I weld the pully all the way around or should I just stitch it in 5 or 6 places? Or are there pullies like this already in existance that I don't know about?

 

[theo]

Haven't done it. Food for thought. You probably already thought of these:

If you put both the York and the alternator on one side of the block are you adding too much side strain to the water pump front bearing and seal?

The york is freewheeling. I think whatever drag it adds to my serpentine is negligible, except when refilling the compressed air tank. The alternator should be freewheeling and negligible drag when it isn't charging.

I bought a York bracket from Kilby that tucks the compressor into original AC compressor spot. And if I got rid of the air pump I could put an extra alternator there (I assume). Would this work for you? I know there are a few different GM serpentine configurations.

 

[BMAN]

After a ton of searching the web I found a pulley that Kilbey sells that is a serpentine alternator pulley with a v-groove added at the front. This will work for one of the accessories. I'll have to figure out something for the other though.

http://www.kilbyenterprises.com/pulleys.htm


Background: This is for my 60 series that I'm doing a V8 swap in right now. My plans are to run the stock GM air conditioning so replacing the compressor with a York is not an option for me. I want to add the York for OBA. It will freewheel until the Clutch is activated for airing up so the added drag shouldn't be to obscene. The spare alternator on the other hand, I am planning to setup on a quick release type tensioner system so that I can remove the belt when not in use. This will minimize the added drag to the motor when not in use.

Also, plans are to have one on Pass side and one on driver side. I hadn't actually thought of the stress to one side but you make a good point.

 

[theo]

10-4.

Kilby has a couple of York brackets. Maybe the driver's side one would work for you? Just add a longer serp belt to include the York. Then a custom bracket for the 2nd alternator, maybe in place of the air pump? Just guessing. Can't help much more I don't think.

I do know the couple of items I've bought from Kilby were good quality with prompt service.

I also know it took me 5 tries to get the serpentine belt length right. The old "wrap a string around it and take it down to NAPA" failed me 4 times. I finally sent my wife in there with my 5th guess and had her buy 2 different belts because I was too embarassed. They weren't fooled for a minute and told her I was a coward! But we finally ended up with the right length.

 

[BMAN]

10-4.

Kilby has a couple of York brackets. Maybe the driver's side one would work for you? Just add a longer serp belt to include the York. Then a custom bracket for the 2nd alternator, maybe in place of the air pump? Just guessing. Can't help much more I don't think.

I do know the couple of items I've bought from Kilby were good quality with prompt service.

I also know it took me 5 tries to get the serpentine belt length right. The old "wrap a string around it and take it down to NAPA" failed me 4 times. I finally sent my wife in there with my 5th guess and had her buy 2 different belts because I was too embarassed. They weren't fooled for a minute and told her I was a coward! But we finally ended up with the right length.

BWAAHAHAAHA!!! That's some s*** like I would do. Worst part is the guys at the local NAPA know me too well and surely wouldn't be fooled either.

I was just thinking about adding the York into the serpentine circuit also then using the Kilby pully with the 2nd alternator. I really didn't want to add any constant drag to the system If I could get away with it though.