power steering pump leak
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
power steering pump leak
Does anyone know if the mounting studs that screw into the back of a pump on a 79 should have o rings around them? I put a reman pump on my car tonight and there was a small trail of fluid running out from one of the mounting studs. This was before ever starting the car. I pulled the pump back off, found some o rings, capped the fluid fittings and filled the reservoir with fluid, and left it on the garage floor on cardboard, upright, to see if there's any trace of fluid on the cardboard tomorrow night.
Le Mans Master
Joined: Jun 2019
Posts: 7,650
Likes: 2,466
From: Indiana
Does anyone know if the mounting studs that screw into the back of a pump on a 79 should have o rings around them? I put a reman pump on my car tonight and there was a small trail of fluid running out from one of the mounting studs. This was before ever starting the car. I pulled the pump back off, found some o rings, capped the fluid fittings and filled the reservoir with fluid, and left it on the garage floor on cardboard, upright, to see if there's any trace of fluid on the cardboard tomorrow night.
https://www.corvetteforum.com/forums...leak-79-a.html
i will look for more pics
edit..tube is brazed…it must have oring on that stud..but on inside not outside?
Last edited by interpon; Sep 15, 2021 at 09:49 PM.
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
Yes, by the diagram, I think what I'm looking for is the o ring #2. I'm going to walk out to the garage before going to bed and see if it has leaked any. I'll hopefully be putting it back on tomorrow night.
Le Mans Master
Joined: Aug 2017
Posts: 8,336
Likes: 2,810
From: Cool Northern Michigan
Yes, there was a diagram years ago on this forum showing the internals of the pump and two "O" rings for the studs. The seals are the same diameter as the threaded hole. So the O ring went inside the pump, not on the outside of the stud.
Evidently those threaded holes go right into the reservoir.
Evidently those threaded holes go right into the reservoir.
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
I think i can put this one to bed. All it back together, the car has been running on stands with my wife cycling the wheel back and forth and a clean piece of cardboard underneath is still clean an hour later. I'll see what it looks like tomorrow and hope I can put it back on the floor and then wait for a dry day to drive the car!
Pro
Joined: Nov 2019
Posts: 607
Likes: 55
From: Dover, Delaware
PS Pump Leak
Most interesting post and what I'd like to know as a senior senior gent HTH can the PS fluid be checked as the alternator stuff covers the pump opening???
Must be a trick I am missing bc is appears to be impossible unless the Alt etc is removed..
JJ78
Must be a trick I am missing bc is appears to be impossible unless the Alt etc is removed..
JJ78
Dr. Detroit
Joined: Mar 2012
Posts: 10,097
Likes: 4,027
From: New Braunfels Texas
Jebby
Pro
Joined: Oct 2020
Posts: 646
Likes: 295
From: Blairsville, Ga
This is why some people choose to convert to right (passenger) side alternator setup. I personally don’t care about originality, so I’m strongly considering doing the swap, or possibly a serpentine setup, when I’m ready to drop the crate engine in my 74.
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Dr. Detroit
Joined: Mar 2012
Posts: 10,097
Likes: 4,027
From: New Braunfels Texas
The serpentine is a MUCH better option if the car has A/C.......you can pilfer the whole setup from 1987 to 1995 Silverado 305/350, 1989-1992 Caprice 305/350, 1987-1992 Camaro 305/350.....
Moving the A/C compressor to the other side would be a nightmare.
My friend and I converted a 71' C20 back to a drivers side Alternator to get the factory A/C working again......just open the hood of any 73-86 Chevy Pickup with A/C and you will see what I mean.....
Others modify/machine a half moon on the Alt bracket that bolts to the head right above the cap......I should have done this before I had all of my **** powdercoated......
Jebby
Le Mans Master
Joined: Jun 2019
Posts: 7,650
Likes: 2,466
From: Indiana
Last edited by interpon; Sep 17, 2021 at 08:03 AM.
Dr. Detroit
Joined: Mar 2012
Posts: 10,097
Likes: 4,027
From: New Braunfels Texas
Jebby
Pro
Joined: Nov 2019
Posts: 607
Likes: 55
From: Dover, Delaware
Ok Jebbysan,
This is what I have done..1st I removed all the old fluid via a large turkey baster and that seemed to drain it all out.
Then I tried to refill it as best as I could...Took if for two short trips and rechecked the level and it was no where near the top of the pump??
I added a few more ounces to try and get it right below the opening of the pump...And now I need to know if I can do a latex glove finger dip and see what happens and of course using a strong flashlight to see where I'm at!!
JJ78
This is what I have done..1st I removed all the old fluid via a large turkey baster and that seemed to drain it all out.
Then I tried to refill it as best as I could...Took if for two short trips and rechecked the level and it was no where near the top of the pump??
I added a few more ounces to try and get it right below the opening of the pump...And now I need to know if I can do a latex glove finger dip and see what happens and of course using a strong flashlight to see where I'm at!!
JJ78
Thread Starter
Le Mans Master
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
FWIW my alternator is pretty much at the very end of the adjustment and the power steering pump is in the middle, and I'm able to sneak the cap out when needed. Factory setup with whatever belts were called for when NAPA looked them up.
Le Mans Master
Joined: Jun 2019
Posts: 7,650
Likes: 2,466
From: Indiana
its the bracket that is in the way not the alternator. The bracket does not move.