Power steering pump
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Logistics Pro
Joined: Jul 2016
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From: Swan River Valley M.B Can
Info is very difficult to find , but the ham can pump puts out allot more gpm than a gen ll ( 25 gpm - 15 gpm ) and just bypasses it robbing hp and creating more heat . On a Ford discussion it was mentioned that a gearbox type power steering in a large truck needs 1550-1600 psi and a rack only needs 800-950 psi although they did not say if this is in general or Ford specific . But I wasn't able find gpm for the ford pumps . My concern is if the ham can pump on the ford puts out 1600psi and 25 gpm then there will need to be a huge amount of oil bypassed creating allot of heat . After pulling the vette pump pulley off and taking it off its mount I believe it can be mounted to the current pumps location without too much grief ( remains to be proven ) which in turn means I need to find a 6 groove pulley that will fit the vette pump . As the configuration on the vette was a slight under drive ( 7.5 in crank pulley 7.25 in pump pulley and my 351 is a 6.25 in crank pulley I should need about a 6 in pump pulley .
Logistics Pro
Joined: Apr 2010
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From: Pekin, IL
You mentioned the Ford pump, being unsure about the pressure flow output. The bracket is really the important piece. Then you could bolt in a pump from a Chevy.
My JAG rack n pinion used the same GM canned ham pump.
That's why I ended up with the one I have. I wish I knew more about the details.
My JAG rack n pinion used the same GM canned ham pump.
That's why I ended up with the one I have. I wish I knew more about the details.
Cargo Master
Joined: Oct 2013
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From: in a barn
I have never heard of boiling the fluid, if you were running too much pressure you would either blow the seals or have over assisted steering IMO. I run GM saginaw pumps with my jag racks and have had no problems. The Ford pump in the picture looks like a saginaw pump as well, maybe there is something wrong with the rack that is causing the fluid to heat up? Either that or the pump is creating the heat? How about looping the pressure and return lines on the pump and bypass the rack completely? Then you can see if the pump is creating the heat.
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Logistics Pro
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From: Swan River Valley M.B Can
The ford pump in the pic is a saginaw but not mine , and yes I have never heard of oil that hot but it melted the cap . The pump was fine on the donor. Both lines were hot when it overheated and the steering seemed to be working properly as I ran it lock to lock a number of times . So I am as confused as anyone .
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Logistics Pro
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From: Swan River Valley M.B Can
I could loop the pump as suggested but it did work properly and the rack seemed to work ok so even if it was ok looped it wouldn't necessarily prove much . My suspicion is that there is too much flow and too much pressure . If I can find a pulley for the vette pump I believe the time spent mounting it would be worth my while as everything would then match .
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Logistics Pro
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From: Swan River Valley M.B Can
Ha ha as I was doing more research I found something that hadn't occured to me , the pulley on the vette pump runs on the backside of the belt meaning it also turns opposite the engine . well back to the drawing board .
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Joined: May 2006
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From: Central Mississippi
Pretty sure 94-96 till when-ever they quit putting 5.8s in, is the same if you can order bracket online from a JY.
Here's the comparison of the std Ford corporate pump & the sag with shaft sizes, you can't re-use the pulley,they're specific.
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From: northwestern Ontario
Info is very difficult to find , but the ham can pump puts out allot more gpm than a gen ll ( 25 gpm - 15 gpm ) and just bypasses it robbing hp and creating more heat . On a Ford discussion it was mentioned that a gearbox type power steering in a large truck needs 1550-1600 psi and a rack only needs 800-950 psi although they did not say if this is in general or Ford specific . But I wasn't able find gpm for the ford pumps . My concern is if the ham can pump on the ford puts out 1600psi and 25 gpm then there will need to be a huge amount of oil bypassed creating allot of heat . After pulling the vette pump pulley off and taking it off its mount I believe it can be mounted to the current pumps location without too much grief ( remains to be proven ) which in turn means I need to find a 6 groove pulley that will fit the vette pump . As the configuration on the vette was a slight under drive ( 7.5 in crank pulley 7.25 in pump pulley and my 351 is a 6.25 in crank pulley I should need about a 6 in pump pulley .
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Logistics Pro
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From: Swan River Valley M.B Can
Thanks John if I can find and mount the pump it would work if the 88 is a rack and pinion . I am sorry to every one that has helped but I have rebuilt almost every thing that has been built over the last few years and I am getting a little gun shy so a little more research and a little less " it should work " is my current motto .
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Logistics Pro
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From: Swan River Valley M.B Can
Ya John the vette pump is on the backside of the belt turning in reverse and I didn't mention but has its own size shaft . So I need a proper rotation pump also .
