Pulley quiz time ! - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**mikey531** · 02-26-2016, 03:09 PM

In the process of getting my truck back together I think some of the pulleys have got mixed up with other engines. So now I need some help in determining which pulley or pulleys are wrong ! Thanks!!

El Dorado Jim · 02-26-2016, 03:36 PM

look at the thread on the next page by (orange 70 chevy) it has been going all week about the same thing, maybe you can find your answers there

swamp rat · 02-27-2016, 02:12 AM

Is that an alternator? or a compressor pump?

You have a short water pump, the outer crank pulley and power steering pump should be in line and use one belt.

The inner water pump pulley groove should match the inner crank groove and also the alternator which go's on the driver side

The outer water pump pulley would match the center crank pulley which you don't have, and that would be for an air compressor unit on the passenger side.

**mikey531** · 02-27-2016, 07:27 AM

That is the air conditioner, I haven't got the alternator on yet. So I need a different crank and waterpump pulley? Any help with part numbers.

Thanks

Ugly 61 · 02-27-2016, 08:50 AM

Your crankshaft pulley is for a non air truck with PS. For an air setup with the correct pully setup you need a 3 groove crank pulley. The inner groove will run the alt the middle groove will run the air cond comp and the outside groove shoule run the PS pump
Ugly 61

**mikey531** · 02-27-2016, 09:08 AM

Quote:

Originally Posted by Ugly 61

Your crankshaft pulley is for a non air truck with PS. For an air setup with the correct pully setup you need a 3 groove crank pulley. The inner groove will run the alt the middle groove will run the air cond comp and the outside groove shoule run the PS pump
Ugly 61

Thanks !

swamp rat · 02-28-2016, 01:05 AM

Quote:

Originally Posted by Ugly 61

Your crankshaft pulley is for a non air truck with PS. For an air setup with the correct pully setup you need a 3 groove crank pulley. The inner groove will run the alt the middle groove will run the air cond comp and the outside groove shoule run the PS pump
Ugly 61

The crank pulley is 2 parts, the inner is a single, you would use this also with air.

The outer pulley is single for non air or (what you need) double for air with the addition of a grove between the two you have now..

**special-K** · 02-28-2016, 09:21 AM

THE REASON YOU DON'T HAVE THE FACTORY a/c PULLEY IS BECAUSE YOU DON'T HAVE FACTORY a
The reason that's not a factory A/C pulley is because the truck didn't come with A/C. The aftermarket would have been made to fit a non-A/C truck. Give me the part#s off the pulleys and the application can be found

**mikey531** · 02-28-2016, 09:55 AM

Quote:

Originally Posted by special-K

THE REASON YOU DON'T HAVE THE FACTORY a/c PULLEY IS BECAUSE YOU DON'T HAVE FACTORY a
The reason that's not a factory A/C pulley is because the truck didn't come with A/C. The aftermarket would have been made to fit a non-A/C truck. Give me the part#s off the pulleys and the application can be found

I am all set thanks

02-26-2016, 03:09 PM	#1
mikey531 Senior Member Join Date: Jul 2009 Location: Exeter, NH Posts: 794	Pulley quiz time ! In the process of getting my truck back together I think some of the pulleys have got mixed up with other engines. So now I need some help in determining which pulley or pulleys are wrong ! Thanks!! Attached Images

02-26-2016, 03:36 PM	#2
El Dorado Jim Registered User Join Date: Dec 2009 Location: El Dorado Ca Posts: 3,374	Re: Pulley quiz time ! look at the thread on the next page by (orange 70 chevy) it has been going all week about the same thing, maybe you can find your answers there

02-27-2016, 02:12 AM	#3
swamp rat Registered User Join Date: Oct 2007 Location: Spanaway Posts: 8,451	Re: Pulley quiz time ! Is that an alternator? or a compressor pump? You have a short water pump, the outer crank pulley and power steering pump should be in line and use one belt. The inner water pump pulley groove should match the inner crank groove and also the alternator which go's on the driver side The outer water pump pulley would match the center crank pulley which you don't have, and that would be for an air compressor unit on the passenger side. __________________ Mike. Swamp Rat build thread : http://67-72chevytrucks.com/vboard/s...d.php?t=595019 72 3/4T 4X4 4" BDS Lift 33" BFG's

02-27-2016, 07:27 AM	#4
mikey531 Senior Member Join Date: Jul 2009 Location: Exeter, NH Posts: 794	Re: Pulley quiz time ! That is the air conditioner, I haven't got the alternator on yet. So I need a different crank and waterpump pulley? Any help with part numbers. Thanks

02-27-2016, 08:50 AM	#5
Ugly 61 Registered User Join Date: Jan 2015 Location: Clyde KS Posts: 91	Re: Pulley quiz time ! Your crankshaft pulley is for a non air truck with PS. For an air setup with the correct pully setup you need a 3 groove crank pulley. The inner groove will run the alt the middle groove will run the air cond comp and the outside groove shoule run the PS pump Ugly 61

02-28-2016, 09:21 AM	#8
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,852	Re: Pulley quiz time ! THE REASON YOU DON'T HAVE THE FACTORY a/c PULLEY IS BECAUSE YOU DON'T HAVE FACTORY a The reason that's not a factory A/C pulley is because the truck didn't come with A/C. The aftermarket would have been made to fit a non-A/C truck. Give me the part#s off the pulleys and the application can be found __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~



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