The Ford Barn

1930artdeco · 07-05-2025, 05:08 PM

I have the standard pulley/damper with an extra pulley bolted to it for the PS belt. Can I add another pulley for an AC belt for a total of three belts?

Mike

miker98038 · 07-05-2025, 06:46 PM

I added a 3rd pulley, original McCulloch part to drive a VS 57. Wasn’t impressive to look at, but worked ok.

Mummert has one also.

http://www.ford-y-block.com/accessories.htm

1930artdeco · 07-05-2025, 07:56 PM

Thanks Miker, but Mummert doesn’t seem to sell a crank pulley, just a PS pulley. At least that is what the link took me to. And I thought he did at one point but now can’t find it.

Mike

miker98038 · 07-05-2025, 11:03 PM

Guess I mis understood. Here’s pictures of the McCulloch blower belt drive. Pretty crude, but worked for years. I had the spacer made to index on the original pulley rivets. Not sure it was necessary, but it let it sit true. I was building my own mounting bracket. So I adjusted for the spacer for alignment. Not real help, but maybe an idea.

KULTULZ · 07-06-2025, 02:25 AM

How is the AC COMP driven now (damper pulley sheave numbers)?

The damper/pulley was single sheave (6312) and a outer pulley (6A312) was attached for PS.

There was a three sheathe pulley offered for factory AC.

Ford blue blood · 07-06-2025, 06:59 AM

Sponsored Links (Register now to hide all advertisements)

The three sheave pully for "factory air" seems to be made of "unabtaniom" as the primary question I was asked by the close to a dozen folks was the crank pulley several years ago when I had the system up for sale.....

KULTULZ · 07-06-2025, 07:39 AM

Quote:

The three sheave pully for "factory air" seems to be made of "unabtaniom"

GIGGLE the PN (B5AZ 6312-B) and be sitting when you hit ENTER ...

1930artdeco · 07-06-2025, 10:31 AM

The damper/pulley was single sheave (6312) and a outer pulley (6A312) was attached for PS.

This is how I am set up now. Since I want to add Vintage Air do I need the third sheave or can I run a longer belt off of the main or PS pulley? I will be adding the compressor in the position like the pictures I posted up top. So I think I can adjust the compressor front to back a bit-think.

Mike

miker98038 · 07-06-2025, 12:05 PM

I’m running a Sanden compressor on brackets from Classic Air. With the GM alternator replacing the generator. The belt wraps around the crank, alternator, compressor, and water pump. I didn’t like the look of that, but I’ve not had a slippage problem so I guess it’s ok. I have had some problems with the alternator pivot bolt on top from stress/vibration fractures. That seems to be solved with a grade 8 bolt. It’s also a bit of a bitch to tighten the belt on a 90 amp alternator. EFI and electric fans are a pretty good load. But I can charge with everything on, including lights and wipers if needed.

If you’re in the other side (drivers) it’ll probably be fine. Might be a bit tight on the p/s pump, I’ve never looked at it from that side.

KULTULZ · 07-06-2025, 01:21 PM

I would get with VINTAGE AIR and see what they offer.

craig · 07-08-2025, 12:13 AM

Advanced Automotive Components, Inc. sells an original design Y block iron dual groove pulley. Looks identical to the original.

Borgeson sells an aluminum version, but it won't fit some of the early Y block balancers

KULTULZ · 07-08-2025, 02:19 AM

Quote:

Originally Posted by craig

Advanced Automotive Components, Inc. sells an original design Y block iron dual groove pulley. Looks identical to the original.

Borgeson sells an aluminum version, but it won't fit some of the early Y block balancers

GOOD INFO!

- https://aacincdirect.net/?product=2-...monic-balancer

1930artdeco · 07-08-2025, 08:42 AM

Thank you all for the info. At this time I will see if the V.A. compressor will work with the one belt (sounds like it will). If it needs a second belt I will worry about it then.

Mike

KULTULZ · 07-08-2025, 11:55 AM

This THREAD continued from - https://www.fordbarn.com/forum/showt...30#post2399430

1930artdeco · 07-08-2025, 01:18 PM

Thanks, K. I should have kept going under the one thread. Is there a way to merge them? Called V.A. and they said one belt. So now I need to figure out the bracketry to hold the compressor in that spot.

KULTULZ · 07-08-2025, 05:39 PM

This post from other thread ...

Quote:

Originally Posted by KULTULZ

You have no AC now (wanting to add) and these photos are from a sales page?

This setup appears to me as as 1958/ (COMP mtd on LS of engine), even though the photo shows a 1957 FYB engine install.

EDIT -

Or possibly a 1958 292 with a 1957 4V swap (ECZ-B INTAKE and 1957 F4100 CARB)

*****

This is the COMP MTG INSTALL (VINTAGE AIR) for a BIRD FYB -

- https://vintageair.com/1955-57-thund...r-bracket-kit/

No FORD PASS CAR Offered - BIRD FEAD (ACCESSORY DRIVE) is a little different.

With a little finagling, you should be able to adapt the install to a FORD.

KULTULZ · 07-09-2025, 07:53 AM

I think this mounting kit is slick, neater than my father's HO train set ...

KULTULZ · 07-09-2025, 07:56 AM

Quote:

Originally Posted by 1930artdeco

Is there a way to merge them?

Nah, don't worry about it. They are officially intermingled now.

craig · 07-09-2025, 06:42 PM

The photos of the compressor mounted on the Y block look good, but I'm wondering if there is enough wrap on the generator pulley

KULTULZ · 07-09-2025, 07:31 PM

GOOD POINT!

An AC COMP is going to require a high tension on the belt whereas a GEN requires much less tension as you can damage the bearings.

They also show the same setup using an ALT, but I think they are calling out a GM ONE-WIRE FARM TRACTOR ALT ...

07-05-2025, 05:08 PM	#1
1930artdeco Senior Member Join Date: May 2010 Location: Lynden, Wa Posts: 3,777	Y block crank pullies-how many can I use? I have the standard pulley/damper with an extra pulley bolted to it for the PS belt. Can I add another pulley for an AC belt for a total of three belts? Mike __________________ 1930 TownSedan (Briggs) 1957 Country Sedan Last edited by 1930artdeco; 07-06-2025 at 10:23 AM.

07-05-2025, 06:46 PM	#2
miker98038 Senior Member Join Date: Mar 2013 Location: Kent, WA. Tucson, AZ Posts: 1,625	Re: Y block crank bullies-how many can I use? I added a 3rd pulley, original McCulloch part to drive a VS 57. Wasn’t impressive to look at, but worked ok. Mummert has one also. http://www.ford-y-block.com/accessories.htm

07-05-2025, 07:56 PM	#3
1930artdeco Senior Member Join Date: May 2010 Location: Lynden, Wa Posts: 3,777	Re: Y block crank bullies-how many can I use? Thanks Miker, but Mummert doesn’t seem to sell a crank pulley, just a PS pulley. At least that is what the link took me to. And I thought he did at one point but now can’t find it. Mike __________________ 1930 TownSedan (Briggs) 1957 Country Sedan

07-06-2025, 06:59 AM	#6
Ford blue blood Senior Member Join Date: Jul 2011 Location: Birmingham, AL Posts: 883	Re: Y block crank bullies-how many can I use? Sponsored Links (Register now to hide all advertisements) The three sheave pully for "factory air" seems to be made of "unabtaniom" as the primary question I was asked by the close to a dozen folks was the crank pulley several years ago when I had the system up for sale..... __________________ Bill, certified Ford nut. 2024 F-150 2018 Lincoln MKZ 2016 Focus 1961 Comet S-22 1956 Ford Crown Victoria 36 Chevy, 351C/FMX, 8", Mustang II

07-06-2025, 10:31 AM	#8
1930artdeco Senior Member Join Date: May 2010 Location: Lynden, Wa Posts: 3,777	Re: Y block crank pullies-how many can I use? The damper/pulley was single sheave (6312) and a outer pulley (6A312) was attached for PS. This is how I am set up now. Since I want to add Vintage Air do I need the third sheave or can I run a longer belt off of the main or PS pulley? I will be adding the compressor in the position like the pictures I posted up top. So I think I can adjust the compressor front to back a bit-think. Mike __________________ 1930 TownSedan (Briggs) 1957 Country Sedan

07-06-2025, 12:05 PM	#9
miker98038 Senior Member Join Date: Mar 2013 Location: Kent, WA. Tucson, AZ Posts: 1,625	Re: Y block crank pullies-how many can I use? I’m running a Sanden compressor on brackets from Classic Air. With the GM alternator replacing the generator. The belt wraps around the crank, alternator, compressor, and water pump. I didn’t like the look of that, but I’ve not had a slippage problem so I guess it’s ok. I have had some problems with the alternator pivot bolt on top from stress/vibration fractures. That seems to be solved with a grade 8 bolt. It’s also a bit of a bitch to tighten the belt on a 90 amp alternator. EFI and electric fans are a pretty good load. But I can charge with everything on, including lights and wipers if needed. If you’re in the other side (drivers) it’ll probably be fine. Might be a bit tight on the p/s pump, I’ve never looked at it from that side.

07-06-2025, 01:21 PM	#10
KULTULZ Senior Member Join Date: Aug 2012 Location: IN A GALAXIE FAR, FAR AWAY Posts: 7,386	Re: Y block crank pullies-how many can I use? I would get with VINTAGE AIR and see what they offer.

07-08-2025, 12:13 AM	#11
craig Senior Member Join Date: May 2010 Location: The Inland Empire of Washington State Posts: 373	Re: Y block crank pullies-how many can I use? Advanced Automotive Components, Inc. sells an original design Y block iron dual groove pulley. Looks identical to the original. Borgeson sells an aluminum version, but it won't fit some of the early Y block balancers

07-08-2025, 08:42 AM	#13
1930artdeco Senior Member Join Date: May 2010 Location: Lynden, Wa Posts: 3,777	Re: Y block crank pullies-how many can I use? Thank you all for the info. At this time I will see if the V.A. compressor will work with the one belt (sounds like it will). If it needs a second belt I will worry about it then. Mike __________________ 1930 TownSedan (Briggs) 1957 Country Sedan

07-08-2025, 11:55 AM	#14
KULTULZ Senior Member Join Date: Aug 2012 Location: IN A GALAXIE FAR, FAR AWAY Posts: 7,386	Re: Y block crank pullies-how many can I use? This THREAD continued from - https://www.fordbarn.com/forum/showt...30#post2399430

07-08-2025, 01:18 PM	#15
1930artdeco Senior Member Join Date: May 2010 Location: Lynden, Wa Posts: 3,777	Re: Y block crank pullies-how many can I use? Thanks, K. I should have kept going under the one thread. Is there a way to merge them? Called V.A. and they said one belt. So now I need to figure out the bracketry to hold the compressor in that spot. __________________ 1930 TownSedan (Briggs) 1957 Country Sedan

07-09-2025, 06:42 PM	#19
craig Senior Member Join Date: May 2010 Location: The Inland Empire of Washington State Posts: 373	Re: Y block crank pullies-how many can I use? The photos of the compressor mounted on the Y block look good, but I'm wondering if there is enough wrap on the generator pulley

07-09-2025, 07:31 PM	#20
KULTULZ Senior Member Join Date: Aug 2012 Location: IN A GALAXIE FAR, FAR AWAY Posts: 7,386	Re: Y block crank pullies-how many can I use? GOOD POINT! An AC COMP is going to require a high tension on the belt whereas a GEN requires much less tension as you can damage the bearings. They also show the same setup using an ALT, but I think they are calling out a GM ONE-WIRE FARM TRACTOR ALT ... __________________ ***** "Last Sunday, I caught him makin' eyes at Idell Bushey durin' preachin'. And I know what they do up there in the hills when they say they're possum huntin'. They're just sittin' around the campfire, drinkin' hard cider, hittin' each other on the shoulder and hollerin' 'flinch!'." ― Charlene Darling (Daughter of Briscoe Darling)