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#21
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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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Buzzards gotta eat... same as worms. |
#22
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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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. 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 |
#23
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************************************* 1968 Lemans. 37,000 original miles. GTO clone. 462ci/KRE 290 heads. UltraDyne 280/288 Solid/850 Qjet by Cliff/Performer RPM/TSP 9.5" in TH400/8.5" 3.42 gears/3950# Race weight/12.58@106 at Bandimere speedway high altitude |
#24
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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
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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
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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
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If replacing pump assembly , isn't putting your valve in SOP?? |
#28
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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
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I use Delco power steering fluid. Easy to remember.
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Ed 1968 GTO (Thanks Mom) 2006 Silverado 2007 Cadillac SRX 2015 Chevy Express |
#30
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I'm still not convinced the billet pulleys don't slip a little also.
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Skip Fix 1978 Trans Am original owner 10.99 @ 124 pump gas 455 E heads, NO Bird ever! 1981 Black SE Trans Am stockish 6X 400ci, turbo 301 on a stand 1965 GTO 4 barrel 3 speed project 2004 GTO Pulse Red stock motor computer tune 13.43@103.4 1964 Impala SS 409/470ci 600 HP stroker project 1979 Camaro IAII Edelbrock head 500" 695 HP 10.33@132 3595lbs |
#31
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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.
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#32
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__________________
************************************* 1968 Lemans. 37,000 original miles. GTO clone. 462ci/KRE 290 heads. UltraDyne 280/288 Solid/850 Qjet by Cliff/Performer RPM/TSP 9.5" in TH400/8.5" 3.42 gears/3950# Race weight/12.58@106 at Bandimere speedway high altitude |
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