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Does anyone have one of these installed on their car. I have a badly leaking integral resevoir pump (original) and am going to replace it. I would like to have a remote PS fluid resevoir in an easier to access location than under the alternator.
Was wondering if someone could point me to a car that has one of these - so that when I order one at the parts counter I get the right one.
That's what I use. The C4 Corvettes use them and they bolt right on. I attached the remote reservoir to a VB&P front spreader bar and plumbed it with Aeroquip TFE hose and fittings. I have it set up with a NASCAR serpentine belt system from CV Products, but you can also get v-belts pulleys.
Here's an old picture form last summer when I first installed my SBC 427
I'm running one also. Mine is running in the reverse direction of the crank on serpentine. Jim Shea is the expert on Sagnaw pumps. I would send him a IM. I mounted the reserve on the crossmember of the frame. Just on top of the lower a-arm frames. With a electric fan there is no ostructions to the reserve.
maybe you can get a late model GM pump to work? I'm using a '95 pump with the stock steering unit. I did swap the pressure regulator from the new pump with the old pump. Works great. Thats Chevy for you, interchangability!
Dan
Budman78-Damm that engine of your's looks awesome, Good Job!
Dan :cool:
I am not an expert on C4 or C5 pumps. I will have to call out to Delphi Saginaw Steering and talk with one of the current pump engineers to get the information. 99% of the Saginaw pumps rotate in a clockwise direction when looking at the pump from the pulley side. However, I think that the C4 pump was a reverse rotation pump. You cannot make the pump operate in the wrong direction! The C5 may not be a reverse rotation pump. Let me try and find out the information tomorrow (Friday, March 7).
Remote reservoir pumps are fairly common in the circle track world, Randy Sweet in Grand Rapids MI. and Speedway Motors in Lincoln NE both sell them. Speedway has a web site.
Corvette C5 Power Steering Pump:yesnod:
The Corvette C5 pump has an aluminum housing and rotates in the conventional direction. It flows about the same amount of oil but has a slightly higher pressure relief setting than the original C3 "big" pump (1300 psi versus 1000 psi.) Now the higher pressure relief could be harder on the hoses and control valve seals but if you don't cramp the steering into full lock too often it probably won't hurt a thing. The C5 pump has a ball bearing support for the drive shaft. (You can see it before you attach the pulley.) Therefore, the pump doesn't care which way it is mounted because the pull of the V-belt doesn't matter with a ball bearing. This pump would make a good candidate to replace your "big" C3 pump. Unfortunately, I can't help you with what brackets to use to mount the pump. This pump (GM #26046503) lists at your GM dealer for $238. (GM Parts Direct price $143.)
Saginaw also supplied Chrysler Jeep with the cast iron version of this bearing pump. I will try to find more about what models, pump flows, pressure relief settings, etc.
Corvette C4 PS Pump:nono:
A C4 pump rotates in the opposite direction. So it will not work if you try to belt drive the pump in the conventional manner (like the pumps mounted in the two threads above.) All GM engines rotate in the same direction. The only time you get into reverse rotation problems is when you have a complex serpentine belt drive like the C4 that drove the pump off the back side of the belt.
Remove Reservoirs
There have been several GM remote reservoirs in use through the years including the C4 and C5 Vettes. There are a lot of remote reservoirs used on import vehicles. Try to mount the reservoir close to; but above the pump. Keep the large "feed" hose length to a minimum. The C5 remote reservoir (GM#26046502) lists for $32 (GM Parts Direct price $19.)
A little Power Steering Pump 101:
There are some other small pumps with remote reservoirs used on other GM vehicles. However, they don't have a ball bearing supporting the drive shaft. Most of the other GM pumps have a bushing supporting the shaft. There is an oil groove in the bushing to help lubricate the bushing in the direction that the V-belt is pulling. This gives maximum durability. Since Saginaw orients the bushing oil groove depending upon the way the pump is mounted on the engine, it is important to obtain a pump that has its mounting and V-belt pull roughly in the same direction.
For example, if you were just replacing your C3 pump with one off of a Chevrolet 350 truck, you would most probably be alright since Chevrolet engines had their pumps mounted in roughly the same locations. However, if you were to obtain a "big" (or small) pump off of some other GM vehicle, it would be best to see just how it was mounted on the original engine and see which direction the V-belt was pulling and how the pump was oriented with respect to the pull.
The small aluminum pump I have, that is in the picture I posted is from CV Products and has been modified to rotate in a clockwise direction. This is the same pump, bracket, and serpentine belt system that they sell to NASCAR teams.
The following are three Jeep Wrangler cast iron Delphi bearing power steering pumps that should work. Note that these specific model year pumps had pressure relief settings that were around 1000 psi.
1994, 95 Jeep Wrangler, 4.2L I-6 Chrysler #53007140
1995 Jeep Wrangler, 2.5L and 4.0L Chrysler #52088426
1996 Jeep Wrangler, 2.5L I-4, Chrysler #52088500
Later model year pumps had much higher pressure relief settings (around 1350 psi.) These kind of pressures could damage the hoses and/or control valve seals.
Just another thought to the solution of the problem. Years ago when i had major blow outs. I went to reduced crank pulley size. It was years before all the new high tech ideas!:)
The 1998 M-Van (Chevrolet Astro, GMC Safari) have a remote reservoir. They also use the big P-pump. If you can find one, you will see that it has a compact round reservoir can that is on the P-pump. A 5/8 inch ID hose feeds from the remote reservoir to the pump. You might take a look at this design system.
You could just use the reservoir from the M-van pump, (it will bolt right in place of the Corvette reservoir on your pump!) This might be a lot easier than trying to come up with brackets and pulleys to fit a small bearing pump onto our engine.