Power Steering Pump Pulley - ZR-1 Net Registry Forums

TX '90 ZR1 · 05-10-2021

While verifying my findings on a noise from a driven accessory, (In a separate thread "Water Pump Rattle?), I notice the power steering pump pulley is not running exactly true. Have not noticed before and am experiencing no issues from this. Paying such close attention to the driven accessories brought this to my attention.
I estimate it is about 1/8" from running true.
Normal ? Maybe an issue?
What are we doing for pumps if one is needed?
I think Jerry has pulleys.
Thanks for everyone's help in advance.

secondchance · 05-10-2021

Runout by 1/8" is not normal. I would check and make sure the pump is mounted correct.
If a replacement pump (I believe power steering pump is ZR-1 specific) cannot be located, my suggestion is to have Turnone rebuild the pump.
https://turnonesteering.com/

TX '90 ZR1 · 05-10-2021

Quote:

Originally Posted by secondchance

Runout by 1/8" is not normal. I would check and make sure the pump is mounted correct.
If a replacement pump (I believe power steering pump is ZR-1 specific) cannot be located, my suggestion is to have Turnone rebuild the pump.
https://turnonesteering.com/

I thought it was out of the ordinary also. Can't believe I had not noticed it before! I'll do a little more investigating the cause when I am changing the water pump, hoses, etc.
Thanks for chiming in.

Great White · 05-14-2021

I figured I'd back up the Turn One recommendation:

I've had some experience with a Turn One power steering pump. I can comfortably say they are one of if not the best power steering pumps on the market. I had one of their modified pumps on an '00 Z-28. It worked flawlessly, ran cool, and gave very good road feedback.

jss06c6 · 05-14-2021

Has the pump been pulled before? If so, someone didn't seat the pulley all the way. It will definitely wear out the belt, which will fail eventually. Make sure you have the right pulley too.

Sent from my SM-G950U using ZR-1 Net Registry mobile app

TX '90 ZR1 · 05-15-2021

Thanks for the feedback Steve.
Pump and/or pulley have not been off since I have had the car. Not sure before I got it.
Will be checking out the cause next week when I have it apart for the water pump change.

carter200 · 05-15-2021

Quote:

Originally Posted by TX '90 ZR1

Thanks for the feedback Steve.
Pump and/or pulley have not been off since I have had the car. Not sure before I got it.
Will be checking out the cause next week when I have it apart for the water pump change.

Kenny,
www.rockauto.com

A26B · 05-15-2021

New GM NOS OEM

(Used are also available)

https://www.jerrysgaskets.com/pulley...401.1592494539

TX '90 ZR1 · 05-15-2021

Quote:

Originally Posted by carter200

Kenny,
www.rockauto.com

Hey Carter,
Thanks. I need to do a bit more checking to find the "for sure" issue. Should happen next week.
Good to hear from you.

TX '90 ZR1 · 05-15-2021

Quote:

Originally Posted by A26B

New GM NOS OEM

(Used are also available)

https://www.jerrysgaskets.com/pulley...401.1592494539

Thanks Jerry. I had noticed you had pulleys if that is what I need.
The shipment from you (water pump, hoses, etc.) is scheduled to be delivered today, so will start working on it in a day or two.
Appreciate all your support.

05-10-2021	#1
TX '90 ZR1 Join Date: Oct 2017 Location: TX Posts: 2,038	Power Steering Pump Pulley While verifying my findings on a noise from a driven accessory, (In a separate thread "Water Pump Rattle?), I notice the power steering pump pulley is not running exactly true. Have not noticed before and am experiencing no issues from this. Paying such close attention to the driven accessories brought this to my attention. I estimate it is about 1/8" from running true. Normal ? Maybe an issue? What are we doing for pumps if one is needed? I think Jerry has pulleys. Thanks for everyone's help in advance. __________________ Kenny 1990 #442

05-10-2021	#2
secondchance Join Date: Aug 2006 Location: McLean, VA Posts: 3,723	Re: Power Steering Pump Pulley Runout by 1/8" is not normal. I would check and make sure the pump is mounted correct. If a replacement pump (I believe power steering pump is ZR-1 specific) cannot be located, my suggestion is to have Turnone rebuild the pump. https://turnonesteering.com/

05-14-2021	#4
Great White Join Date: Mar 2018 Location: Misery Posts: 79	Re: Power Steering Pump Pulley I figured I'd back up the Turn One recommendation: I've had some experience with a Turn One power steering pump. I can comfortably say they are one of if not the best power steering pumps on the market. I had one of their modified pumps on an '00 Z-28. It worked flawlessly, ran cool, and gave very good road feedback.

05-14-2021	#5
jss06c6 Join Date: Aug 2015 Location: Magnolia, Texas Posts: 884	Re: Power Steering Pump Pulley Has the pump been pulled before? If so, someone didn't seat the pulley all the way. It will definitely wear out the belt, which will fail eventually. Make sure you have the right pulley too. Sent from my SM-G950U using ZR-1 Net Registry mobile app

05-15-2021	#6
TX '90 ZR1 Join Date: Oct 2017 Location: TX Posts: 2,038	Re: Power Steering Pump Pulley Thanks for the feedback Steve. Pump and/or pulley have not been off since I have had the car. Not sure before I got it. Will be checking out the cause next week when I have it apart for the water pump change. __________________ Kenny 1990 #442

05-15-2021	#8
A26B Join Date: Dec 2003 Location: Arcadia,OK Posts: 3,394	Re: Power Steering Pump Pulley New GM NOS OEM (Used are also available) https://www.jerrysgaskets.com/pulley...401.1592494539 __________________ Jerry Downey JERRYS LT5 GASKETS & PARTS http://www.jerrysgaskets.com 1994 *ZR-1*, Black/Black, Lingenfelter Aerobody, 416cu in, 3.91 gears, coil-over susp, Brembo brakes, etc. 2016 Black-Red, 3LT-Z51 Auto 8-speed.