#21  
Old 03-31-2020, 12:40 PM
'ol Pinion head 'ol Pinion head is offline
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In 2009 or 2010, I quit offering & shipping out nice used original PS pumps in the PS/pulley/ bracket CONVERSION Sets that I've offered for near 30 years (& Ames began replicating for more $$$ with repop parts about 6 years ago).

During this ten year span, have gone through many select used pumps using new seal kits; all '67-70 pumps, & have also similiarly gone through near a dozen '71 & later style pumps. Have not had a single reported issue with over two dozen such restored PS pumps in that time frame. Have half a dozen '71-74 pumps, & 8 or so late '60's pumps to go through later this year. After that will most likely be done offering the conversion set-ups as the select pump cores I pulled & put in boxes in the 80's & 90's have beenmuch better condition than what Ive run across recently. Certain application pulleys am also having a hard time sourcing in nice used condition.

What pumps have I had issues with?
3 pos Cardone rebuilds including one brought to me to install on an OHC-6 to Pontiac 400 swap in a '67 LeMans. Also, 2 parts store plastic reservoir pumps for our most recent XJ Cherokee, which i sourced the rebuilt pumps @ O'Reillys.

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  #22  
Old 03-31-2020, 12:46 PM
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HWYSTR455 HWYSTR455 is offline
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Originally Posted by 68lemans462 View Post
I ended up getting the pump rebuilt and it works well. No leaks yet and it was a relatively easy job. I did put ATF in it. Is this a No-No? If so how do I get the system properly flushed out?

Sent from my SM-G973U using Tapatalk
You can flush the system by removing the return line from the pump, and plug the pump side, letting the hose still connected to the box go into a recovery pan. Then turn the wheel lock to lock, without starting it until no more comes out. Dump a bottle of PS fluid in the reservoir and repeat until it runs 'clear', or the color of the fluid you are using to replace the original fluid.

OPH - I will never buy parts store used ones anymore, unless I have no choice. There are sources for 'properly' rebuilt units, or new units.


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  #23  
Old 03-31-2020, 12:49 PM
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68lemans462 68lemans462 is offline
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Quote:
Originally Posted by HWYSTR455 View Post
You can flush the system by removing the return line from the pump, and plug the pump side, letting the hose still connected to the box go into a recovery pan. Then turn the wheel lock to lock, without starting it until no more comes out. Dump a bottle of PS fluid in the reservoir and repeat until it runs 'clear', or the color of the fluid you are using to replace the original fluid.

OPH - I will never buy parts store used ones anymore, unless I have no choice. There are sources for 'properly' rebuilt units, or new units.


.
Thank you I'll give this a try!!

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  #24  
Old 03-31-2020, 01:11 PM
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HWYSTR455 HWYSTR455 is offline
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Sometimes pumps 'brownout', and/or boxes dump crap into the fluid. It's a good idea to do at least a fluid change when replacing a pump.

The additive packages in ATF keep clutches in a trans clean and condition friction materials to grab better. Obviously, PS pumps don't need that stuff. If you switch around fluids, you can also create a situation where the seals 'grow'.

It's best to use PS fluid, know/remember what you use, and use the same brand/type going forward.


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #25  
Old 03-31-2020, 01:22 PM
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STEELCITYFIREBIRD STEELCITYFIREBIRD is offline
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Quote:
Originally Posted by 68lemans462 View Post
I ended up getting the pump rebuilt and it works well. No leaks yet and it was a relatively easy job. I did put ATF in it. Is this a No-No? If so how do I get the system properly flushed out?

Sent from my SM-G973U using Tapatalk
If you have an "old" Ford, GM uses P/S Fluid (believe it is hydraulic fluid with correct additive for GM's)..., Turing steering wheel to each extreme flushes out system each fluid path....and bleeds system of air!

I put one of these: https://www.summitracing.com/parts/wix-58964
in the return line for a while when I service a system, but only with a pump or box failure, not a reseal.

  #26  
Old 03-31-2020, 01:23 PM
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Quote:
Originally Posted by Skip Fix View Post
My 78s original was leaking from the shaft so I bought a replacement. The valve in it was stuck hard! And there was fluid lubing it. Had to break it loose tapping on it to swap valves. Swapped on a billet pulley and now have a squeal the old leaky one did not!

So be sure even in a new one the valve can move.
Uhg. Well, squeal, you can try flushing it. It could be grabbing at a particular spot, might be debris in there.

Flow valves need to meet the requirements of the box in use, and if I recall correctly, there are 9 different flow valves for Saginaw pumps/boxes. I believe Schurkey listed the flow for valves somewhere, as well as boxes, maybe PM him.

Many times when people swap boxes trying to do an 'upgrade', the flow valve is overlooked. Also, when you buy a pump/reservoir, the rebuild co rarely checks the valves, so you never know what you're going to get. They just grab them from a pile and pitch them in there.

.

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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #27  
Old 03-31-2020, 01:40 PM
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STEELCITYFIREBIRD STEELCITYFIREBIRD is offline
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Quote:
Originally Posted by 68lemans462 View Post
I ended up getting the pump rebuilt and it works well. No leaks yet and it was a relatively easy job. I did put ATF in it. Is this a No-No? If so how do I get the system properly flushed out?

Sent from my SM-G973U using Tapatalk
Not clear, a rebuilt pump, or you resealed the pump?

If replacing pump assembly , isn't putting your valve in SOP??

  #28  
Old 03-31-2020, 01:46 PM
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Pumps that come with the reservoir already have a flow valve in them. In that case, it's recommended to use your original valve.

If the original was rebuilt, most likely the same valve was reused on assembly.


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1970 GTO Judge Tribute Pro-Tour Project 535 IA2
http://forums.maxperformanceinc.com/...d.php?t=760624
1971 Trans Am 463, 315cfm E-head Sniper XFlow EFI, TKO600 extreme, 9", GW suspension, Baer brakes, pro tour car
https://forums.maxperformanceinc.com...ght=procharger
Theme Song: http://www.youtube.com/watch?v=7zKAS...ature=youtu.be
  #29  
Old 03-31-2020, 02:13 PM
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OG68 OG68 is offline
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I use Delco power steering fluid. Easy to remember.

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  #30  
Old 03-31-2020, 02:18 PM
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Skip Fix Skip Fix is offline
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I'm still not convinced the billet pulleys don't slip a little also.

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  #31  
Old 03-31-2020, 04:14 PM
mgarblik mgarblik is offline
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Concerning using power steering fluid in your system now that it has ATF in it: IMO, it's up to you if you want to go through the mess and hassle of changing it. Over the 60 years that Saginaw used that pump in GM, Ford, Chrysler and even some imports, they have recommended a variety of different fluids for the pump and steering gear. During the muscle car years, Dexron II was recommended in the majority of GM units. Fords and Lincoln's that used hydroboost with that pump also recommended Dexron fluid. Approved GM power steering fluid began being recommended exclusively because of aluminum rack and pinion unit failures beginning in the early 1980's and hard steering when cold associated with them. I don't believe the pump or an 800 steering gear care if you use Dexron ATF or GM power steering fluid. Your choice.

  #32  
Old 03-31-2020, 04:16 PM
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68lemans462 68lemans462 is offline
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Quote:
Originally Posted by mgarblik View Post
Concerning using power steering fluid in your system now that it has ATF in it: IMO, it's up to you if you want to go through the mess and hassle of changing it. Over the 60 years that Saginaw used that pump in GM, Ford, Chrysler and even some imports, they have recommended a variety of different fluids for the pump and steering gear. During the muscle car years, Dexron II was recommended in the majority of GM units. Fords and Lincoln's that used hydroboost with that pump also recommended Dexron fluid. Approved GM power steering fluid began being recommended exclusively because of aluminum rack and pinion unit failures beginning in the early 1980's and hard steering when cold associated with them. I don't believe the pump or an 800 steering gear care if you use Dexron ATF or GM power steering fluid. Your choice.
I've used it for the past 25 years without any problems! Good point. thanks.

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