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Old 02-19-2011, 02:39 PM
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84 gm power steering leak at...(pressure plate)

I have a 84 corvette with a gm power steering pump with the remote reservoir. The "dog on" pump is leaking from the pressere plate (toward the back)

Now my pump is only leaking from there, (1) Can I get a o-ring to replace it.

(2) Is there an o-ring behind the plate?

(3) Will the pump still leak if I replace the o-ring............

(4) Or should I just buy another?


help please, thanks

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Old 02-19-2011, 03:09 PM
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It is difficult to tell what part of the pump you are talking about. A PS Pump has no pressure plate and "dog " is a pretty loose term for ???
No Clue.
Find out what it is called or better yet post a pic and maybe someone can help.
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Old 02-19-2011, 04:24 PM
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Hi
The link is for a reseal kit for your PS pump, I think if I was going that far might as well dismantle the pump completely & clean the whole thing replacing any part that doesn't look right. It's a good deal of work, but the labor price is low. Plus it looks better all clean w/new paint, I'm fussy about how things look on my C4, the rest of my vehicles not so much.
Rich

http://www.rockauto.com/catalog/rafr...Kit%2BEDELMANN

latech
The "pressure plate" I think he's referring to the pressure union.

Last edited by richard stewart 3rd; 02-19-2011 at 04:34 PM.
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Old 02-19-2011, 06:52 PM
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The pressure line screws into the pressure fitting, the bypass valve and spring are in behind it.The fitting can be leaking due to the seal between the fitting and the reservoir(can) and the mount bolts on the back also have seals inside a land between the reservoir and pump body.
The front has a large o ring around the reservoir perimeter sealing the pump body to the reservoir and then the shaft seal it self.
Try cleaning it off with brake clean and then check it to see if it is easier to spot after cleaning. I have seen the reservoirs leak as someone who trys to tighten a belt, prys on the reservoir and consequently dents itand deforms it at a sealing point or punctures it.
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Old 02-19-2011, 07:05 PM
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Quote:
Originally Posted by richard stewart 3rd
Hi
The link is for a reseal kit for your PS pump, I think if I was going that far might as well dismantle the pump completely & clean the whole thing replacing any part that doesn't look right. It's a good deal of work, but the labor price is low. Plus it looks better all clean w/new paint, I'm fussy about how things look on my C4, the rest of my vehicles not so much.
Rich

http://www.rockauto.com/catalog/rafr...Kit%2BEDELMANN

latech
The "pressure plate" I think he's referring to the pressure union.
I hear ya, I like my c4's super clean............ i have 2........here is my 87

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Last edited by vetteman2; 02-19-2011 at 07:34 PM.
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Old 02-19-2011, 07:10 PM
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you see the circle on the back................. I belive its called the pressure plate, either way its leaking. All my hoses are brand new. Its 3 of them.

I have the remote reservior, and its not leaking.

Its coming from the pressure plate for sure, 100%

there is a large c clip or (ring) holding the pressure plate on...

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Last edited by vetteman2; 02-19-2011 at 07:35 PM.
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Old 02-19-2011, 07:15 PM
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I guess i'll just by another one. I do belive its called a pressure plate tho'.

I was hoping some knew what I was talking about.

Im not talking about a "old school pump"
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Old 02-19-2011, 07:16 PM
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thanks for the link
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Old 02-19-2011, 07:17 PM
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That is really nice. I'm taking mine apart now to do something similar to what you have, part prices are out of control for these cars, I just received the full weather stripping for a coupe $800
plus I need carpet & 35th anniversary leather seat covers.
Rich
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Old 02-19-2011, 07:32 PM
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Quote:
Originally Posted by richard stewart 3rd
That is really nice. I'm taking mine apart now to do something similar to what you have, part prices are out of control for these cars, I just received the full weather stripping for a coupe $800
plus I need carpet & 35th anniversary leather seat covers.
Rich

I know, price on these vettes is crazy. So do you have the white seats for the 35th ann.

The interior will cost you a arm and a leg.

heres what the motor looks like on my 84.

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Old 02-19-2011, 07:39 PM
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Quote:
Originally Posted by vetteman2
I guess i'll just by another one. I do belive its called a pressure plate tho'.

I was hoping some knew what I was talking about.

Im not talking about a "old school pump"
I see what your talking about, yeah It is the rear plate. Pressure plate threw me off.But it does hold in the pressure developed by the pump.
Anyhow you can geta seal kit for the pump.Probably would save you some bucks.
The pump in the picture still requires a canister around it as there is no return connection only a port, but it can have a canister that has a hose fitting for the reservoir.But this picture is obviously just for ettification of where you have a leak as you most likely have the type 2 pump

Last edited by latech; 02-19-2011 at 07:55 PM.
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Old 02-19-2011, 07:44 PM
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aww dont worry about tech, thanks for taking the time out to help me. All my hoses are 7 days old. My reserivor and the pump are the only things I didnt replace. At first I had a leak at the hose (the 1 with rubber and metal crimped together. Then I replace that hose, plus 2 more. Then the rear plate started leaking.

tell me this.

My old fulid was red. My new fluid, is clear. Would that make a difference?

When I stick my new seals or buy a new pump, which color fluid should i put in there?

everything is brand new, besides the pump and the reseriovor.

I can clearly see that its coming from the plate , because the pump WAS super clean and painted.

its coming from the rear plate 100% sure
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Old 02-19-2011, 07:58 PM
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OK, you know i had a car a few weeks ago that we used a clear premium hydraulic fluid in rather than atf or the OEM stuff. It was way quieter and worked better than the OE stuff. It was a (newer) 05 grand cherokee. Go figure. I like Bona fide power steering fluid for that reason, the clearer the better.
Sorry for the confusion and all the questions. Glad to help
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Old 02-19-2011, 07:59 PM
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You know the pump said daimler benz all over it and we put in john deere hydraulic fluid. The customer was real happy.
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Old 02-19-2011, 08:00 PM
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I think the clear was meant for hydro boost systems but it's fine to use w/out HB, just don't use trans fluid.
Rich

I may be making a mistake with the white covers, but the car is black & I'm color blind anyway so black & white looks great to me. HA HA
rich
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