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Old 12-25-2012, 01:48 PM   #1
Horsman
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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.
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1972 C20 Highlander "C"
1966 Olds 442 L69 four speed
1971 Skylark (GS clone racecar) 494 stroker
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Old 12-25-2012, 11:38 PM   #2
hugger6933
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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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Old 12-26-2012, 10:35 AM   #3
motorcritter
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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.
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Old 12-26-2012, 12:05 PM   #4
MARKDTN
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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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Old 12-26-2012, 08:11 PM   #5
burb71
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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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Old 12-26-2012, 08:39 PM   #6
Horsman
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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.
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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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Old 12-26-2012, 08:45 PM   #7
CrewCab59
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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.
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