What pully does the PS pump belt run on ?
#1
Instructor
Thread Starter
What pully does the PS pump belt run on ?
I'm adding Steeroids and a Power Steering pump to my 71. I already purchased the Steeroids from a Forum member but need to buy a pump/mounting bracket and don't know if I need a new pulley or not. Any help in showing me the belt routing would be appreciated.
#2
Melting Slicks
If you have the standard 2 groove crank pully, the P/S belt goes in the inner groove closest to the engine. The alt. is next and if you have AC it's another pully that gets bolted on. By the way I just might have a broken P/S pump laying around with the brackets on it. Free + shipping to a fellow CFM from WI. You got a good deal on the Steeroids kit. T
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69Chevelle (02-27-2017)
#3
belt routing on my 1968
alternator belt is on after-most crank pulley
ps belt is on center crank pulley
ac belt is on forward-most crank pulley (NOTE: A/C installed by me, not stock, nor available on L79 in 1968).
These are deep groove pulleys.
See picture in below thread. It includes pulley numbers for 1968-- not sure if applicable to your year.
https://www.corvetteforum.com/forums...post1588279353
ps belt is on center crank pulley
ac belt is on forward-most crank pulley (NOTE: A/C installed by me, not stock, nor available on L79 in 1968).
These are deep groove pulleys.
See picture in below thread. It includes pulley numbers for 1968-- not sure if applicable to your year.
https://www.corvetteforum.com/forums...post1588279353
Last edited by carriljc; 02-26-2017 at 09:37 AM. Reason: clarified wording, added comment about deep groove pulleys
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69Chevelle (02-27-2017)
#4
Race Director
Which engine do you have, and do you have air conditioning? For 71, the pulleys needed vary by the engine, and with or without air.
LT-1's and L-48's without air, shouldn't need any additional pulleys. L-48's with AC, need a single groove pulley added to the existing two groove crank pulley. On 454's, the power steering pump uses a 2 groove pulley, and the alternator gets driven off of one of the grooves on the PS pulley. 454's w/o AC don't need any different engine pulleys, but 454's with AC need a special $200+, three groove water pump pulley.
Once I know which engine and options you have, I can post an illustration of the pulleys and belt routing.
If you have an assembly manual, all of the belt and pulley configurations are shown in it. If you don't have an AIM, you really should buy one.
LT-1's and L-48's without air, shouldn't need any additional pulleys. L-48's with AC, need a single groove pulley added to the existing two groove crank pulley. On 454's, the power steering pump uses a 2 groove pulley, and the alternator gets driven off of one of the grooves on the PS pulley. 454's w/o AC don't need any different engine pulleys, but 454's with AC need a special $200+, three groove water pump pulley.
Once I know which engine and options you have, I can post an illustration of the pulleys and belt routing.
If you have an assembly manual, all of the belt and pulley configurations are shown in it. If you don't have an AIM, you really should buy one.
#5
Instructor
Thread Starter
Belt placement
If you have the standard 2 groove crank pully, the P/S belt goes in the inner groove closest to the engine. The alt. is next and if you have AC it's another pully that gets bolted on. By the way I just might have a broken P/S pump laying around with the brackets on it. Free + shipping to a fellow CFM from WI. You got a good deal on the Steeroids kit. T
Any chance you could post a picture of your setup, the one posted in another response doesn't look like the same arrangement you describe.
#6
Race Director
I don't have A/C so my std 2 groove pulley should good to go. I have a complete P/S pump and bracket coming so won't need your generous offer. I was very pleased with the price of the Steeroids, the money I saved will go to other parts :-)
Any chance you could post a picture of your setup, the one posted in another response doesn't look like the same arrangement you describe.
Any chance you could post a picture of your setup, the one posted in another response doesn't look like the same arrangement you describe.
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69Chevelle (02-28-2017)
#7
Melting Slicks
I don't have A/C so my std 2 groove pulley should good to go. I have a complete P/S pump and bracket coming so won't need your generous offer. I was very pleased with the price of the Steeroids, the money I saved will go to other parts :-)
Any chance you could post a picture of your setup, the one posted in another response doesn't look like the same arrangement you describe.
Any chance you could post a picture of your setup, the one posted in another response doesn't look like the same arrangement you describe.
T
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69Chevelle (02-28-2017)
#8
Instructor
Thread Starter
Belt routing
Assuming you have an L-48, here is the illustration from the 1972 Corvette Parts Book, showing the belt routing. The illustration at the top of the page is the L-48 without PS or AC, and the bottom one is the L-48 with PS. The original part numbers and belt dimensions are included also.