Q: Power steering pumps? - ZR-1 Net Registry Forums

Paul Workman · 05-26-2008

I may need to replace mine - bearings may be bad. I checked with a few sources and all I find are pumps that have separate resovoirs for the 90 ZR-1. I assume the pump and resevoir are separate, but I'm not sure. Before I take mine off (or more to the point, order one) AND invite all the headaches of purging issues, can anyone tell me if our (90) pumps have a separate resovoir or is there a special pump for our Zs??? I'd hate to get the wrong one.

P.

gbrtng · 05-26-2008

Quote:

Originally Posted by Paul Workman

I may need to replace mine - bearings may be bad. I checked with a few sources and all I find are pumps that have separate resovoirs for the 90 ZR-1. I assume the pump and resevoir are separate, but I'm not sure. Before I take mine off (or more to the point, order one) AND invite all the headaches of purging issues, can anyone tell me if our (90) pumps have a separate resovoir or is there a special pump for our Zs??? I'd hate to get the wrong one.

P.

I had one poop out on my 91 a few years back. NAPA store in Naperville had one in stock so it must be a common part. The counter guy could not reverse cross reference it but I'd bet it's used on Geos, Berettas, etc.

tomtom72 · 05-27-2008

Hey Paul, our 90 pumps, and all the rest I think, have a remote resevior.

I'm 99% positive on that info.

Tom

Paul Workman · 05-27-2008

Correct. If I had looked at the FSM before I posted this trivia, I'd have known. But, thanks for the response(s), anywho.

P.

bldavis11 · 05-27-2008

Have you figured out if this is a common part?

GOLDCYLON · 05-27-2008

Quote:

Originally Posted by bldavis11

Have you figured out if this is a common part?

Yeah I was wondering as well if this is a generic C4 item for my personal parts crib in the garage.

tf95ZR1 · 05-28-2008

Mine is a MY95, but the reservoir is separate and "wraps around" the pump.
The pump was surprisingly easy to find at my local parts store (Autozone?)
and not too expensive. I vaguely remember needing a pulley puller.
I also highly recommend replacing the rubber high pressure hose with a
braided SS hose. If you were running dry, someone said you might have
metal shavings in the system and should replace the rack also. I didn't and
all seems fine.
Good luck,
Ted

PS I believe our pump is different than a C4 pump and mounted differently.

Paul Workman · 05-28-2008

Quote:

Originally Posted by tf95ZR1

If you were running dry, someone said you might have
metal shavings in the system and should replace the rack also. I didn't and
all seems fine.
Good luck,
Ted

PS I believe our pump is different than a C4 pump and mounted differently.

I hadn't thought about the shavings potential. Honestly, the problem just started, and I cannot say for sure it is the PS pump.

I consulted w/ Pete and we initially discussed letting it go until it was clear which unit (PS/water pump, etc) was bad. But, for $80 and a lifetime guarantee for a new pump - running the risk of metal shavings running amok doesn't make sense. If it turns out to be something else, I'll have peace of mind not introducing metal grit in the system brings), a new pump & a spare (at least).

P.

05-26-2008	#1
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Q: Power steering pumps? I may need to replace mine - bearings may be bad. I checked with a few sources and all I find are pumps that have separate resovoirs for the 90 ZR-1. I assume the pump and resevoir are separate, but I'm not sure. Before I take mine off (or more to the point, order one) AND invite all the headaches of purging issues, can anyone tell me if our (90) pumps have a separate resovoir or is there a special pump for our Zs??? I'd hate to get the wrong one. P.

05-27-2008	#3
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: Q: Power steering pumps? Hey Paul, our 90 pumps, and all the rest I think, have a remote resevior. I'm 99% positive on that info. Tom __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

05-27-2008	#4
Paul Workman Join Date: Nov 2007 Location: Squires (near Ava MO in the Mark Twain N'tl Forest) - Missouri Posts: 6,493	Re: Q: Power steering pumps? Correct. If I had looked at the FSM before I posted this trivia, I'd have known. But, thanks for the response(s), anywho. P.

05-27-2008	#5
bldavis11 Join Date: Mar 2006 Location: Portsmouth, VA Posts: 245	Re: Q: Power steering pumps? Have you figured out if this is a common part?

05-28-2008	#7
tf95ZR1 Join Date: Aug 2005 Location: Northridge, CA Posts: 1,461	Re: Q: Power steering pumps? Mine is a MY95, but the reservoir is separate and "wraps around" the pump. The pump was surprisingly easy to find at my local parts store (Autozone?) and not too expensive. I vaguely remember needing a pulley puller. I also highly recommend replacing the rubber high pressure hose with a braided SS hose. If you were running dry, someone said you might have metal shavings in the system and should replace the rack also. I didn't and all seems fine. Good luck, Ted PS I believe our pump is different than a C4 pump and mounted differently. Last edited by tf95ZR1; 05-28-2008 at 02:41 AM.