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#1 |
Registered User
![]() Join Date: Feb 2011
Location: North Texas
Posts: 118
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'72 C20 402 power steering pump
Decided to rebuild my original power steering pump, this was a first time for me doing such. The pump works great but leaks fluid out the front seal and one of the rear orings on the housing. Not a bad leak but bad enough to drive you nuts.
Thinking about replacing the pump with a new or professionally rebuilt unit. Anyone have any good vendor suggestions or the one's to stay away from. Thanks in advance.
__________________
Jeff Horsman 1972 C20 Highlander "C" 1966 Olds 442 L69 four speed 1971 Skylark (GS clone racecar) 494 stroker 1986 Buick T-Type |
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#2 |
Registered User
Join Date: Oct 2008
Location: Marianna Arkansas
Posts: 7,269
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Re: '72 C20 402 power steering pump
I normally would not do this but since the leak is not too bad, try some Morey's brand power steering oil additive. I had a truck that was whining and I changed the pump only to mke the problem worse and then changed it again to creat a leak and frustration so I tried some of that brand of conditioner and not only did the whine stop but the leak did as well. I would normally call B/S on that if it had'nt happened to me and I know for a fact that it worked and masde everything all better, it does'nt cost a whole lot so what do you have to lose? Jim
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#3 |
Registered User
Join Date: Mar 2012
Location: Boulder, CO
Posts: 350
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Re: '72 C20 402 power steering pump
I've used the Lucas power steering additive on several vehicles- import and domestic. It will usually shut the whine off, but not always. That being said, a whining pump may run for years without incident, or it can fail rather quickly- no real way to predict that. For leaks, if the Lucas doesn't cure it, then it is time for a new whatever leaks.
Just my experience with something you can dump into the system and it is a cheap fix, if it works. Posted via Mobile Device |
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#4 |
Registered User
Join Date: Jan 2011
Location: Chattanooga, TN
Posts: 2,148
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Re: '72 C20 402 power steering pump
I would "rebuild" it again yourself. The seal and the o-ring kit will be much less expensive than a rebuilt pump. If you are set on not doing it yourself, many of the parts houses have services that build your pump. I know CarQuest does and pretty sure NAPA does. That way you get your pump back that at least you know wasn't in a fire or a wreck. Other than that, get one with a good guarantee-maybe Advance or O'Rieleys.
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'83 K20-TPI '73 C10 '79 C10-ex-diesel(SOLD) '07 Tahoe(Son driving) '14 Suburban-DD '71 C10-current project |
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#5 |
Active Member
![]() Join Date: Oct 2002
Location: Ft. Myers, Fl
Posts: 1,716
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Re: '72 C20 402 power steering pump
I checked advance auto they sell rebuilt Big Block pumps for about $50 or so with core.
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#6 |
Registered User
![]() Join Date: Feb 2011
Location: North Texas
Posts: 118
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Re: '72 C20 402 power steering pump
Tried adding some of the Lucas treatment without success. That would have been easy.
Thought about buying another seal kit, but that was a messy and tedious process doing the rebuild. Figured since I was not successfull my first go round I might have the same results the second time. I see pumps for sell various places new and rebuilt; though someone on the board might have some insight regarding the p/s pumps on the market. Thanks for all the responses so far guys.
__________________
Jeff Horsman 1972 C20 Highlander "C" 1966 Olds 442 L69 four speed 1971 Skylark (GS clone racecar) 494 stroker 1986 Buick T-Type |
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#7 |
Registered User
Join Date: Jul 2010
Location: Knoxville,TN
Posts: 1,185
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Re: '72 C20 402 power steering pump
Napa has the reseal kit for under $20.00 , comes with the seal and the tin can o-rings.
__________________
1972 Custom Deluxe 20 4x4 burb 1971 GMC SWB CST 4x4 1972 GMC k20 4x4 (X- brush truck ) 1971 Chevy CST Blazer 4x4 1971 Chevy C/10 1970 Cab Chassis C30 157" 1971 Cab Chassis Custom 30 Deluxe 157" 292/4spd ( Napco Replica ) 1988 Chevy V30 4x4 wrecker challenger 4812 |
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