HELP! Power steering pump question....
Thread Starter
Intermediate
Joined: Aug 2015
Posts: 41
Likes: 0
From: Sherman TX
HELP! Power steering pump question....
I'm doing a p/s conversion on my 66 BB using the Borgeson box and pump and the stock mounting brackets. I finally have it back together and so I added p/s fluid to the pump. I have a leak before I even got to start it! My question is: Do the 2 threaded studs that mount the pump to the bracket actually penetrate into the reservoir? The supply and return fittings are not leaking. Any help would be appreciated.
One other thing hit me. If I overfilled it, would the excess be coming out of the fill neck once the cap is on?
One other thing hit me. If I overfilled it, would the excess be coming out of the fill neck once the cap is on?
Thread Starter
Intermediate
Joined: Aug 2015
Posts: 41
Likes: 0
From: Sherman TX
What I noticed is there is a round rubber gasket that appears to seal around the threaded hole where the stud screws into the case. It was bunched in one small section, so it was not doing any sealing. The other issue was that the stud was not bottomed in the hole.
So there are two potential issues. I'm thinking it's the gasket, but I'm open to any comments. It looks like to me that the gasket was a little too big for the hole.
Pro
Joined: Jan 2001
Posts: 526
Likes: 34
From: Mt. Laurel NJ
Gloryhog
Are you are talking about the studs on the back of the pump? If you are, they obviously penetrate the reservoir. They go through the reservoir into the pump body. On my pump there is an "O" ring between the reservoir and the pump body.
CUL Jim
Are you are talking about the studs on the back of the pump? If you are, they obviously penetrate the reservoir. They go through the reservoir into the pump body. On my pump there is an "O" ring between the reservoir and the pump body.
CUL Jim
Thread Starter
Intermediate
Joined: Aug 2015
Posts: 41
Likes: 0
From: Sherman TX
Mine has more of a gasket that is supposed to sit between the case and the threaded hole that the stud goes into. Yes, in the back of the case. It was leaking around that gasket. I ended up calling Summit Racing and getting approval to return the pump. I'm still wondering whether the studs should be screwed in until they bottom out in the hole.
Race Director
Joined: Nov 2002
Posts: 12,142
Likes: 54
From: Taylor Michigan
Should be the correct information as GM used the same pump in many applications just by replacing the can or reservoir
Pro
Joined: Jan 2001
Posts: 526
Likes: 34
From: Mt. Laurel NJ
Mine has more of a gasket that is supposed to sit between the case and the threaded hole that the stud goes into. Yes, in the back of the case. It was leaking around that gasket. I ended up calling Summit Racing and getting approval to return the pump. I'm still wondering whether the studs should be screwed in until they bottom out in the hole.
The short end into the pump and compresses the O ring.
CUL Jim
Last edited by Jim_C; Nov 12, 2016 at 09:43 PM.
Thread Starter
Intermediate
Joined: Aug 2015
Posts: 41
Likes: 0
From: Sherman TX
Well, I've already stated that I don't have an o ring. My stud is not like the picture of yours. It is a stud with a hollow end for an Allen wrench and a nut meant to tighten against the adjustment slot in the bracket. It looks like your nut is welded to the stud. Mine is not. A little different design.
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Pro
Joined: Jan 2001
Posts: 526
Likes: 34
From: Mt. Laurel NJ
Well, I've already stated that I don't have an o ring. My stud is not like the picture of yours. It is a stud with a hollow end for an Allen wrench and a nut meant to tighten against the adjustment slot in the bracket. It looks like your nut is welded to the stud. Mine is not. A little different design.
I must have misunderstood what you are asking. We're talking about two completely different things. Sorry. Hope someone else can help.
CUL Jim
Le Mans Master
Joined: Sep 2003
Posts: 8,812
Likes: 2,029
From: eastern NC
I'm doing a p/s conversion on my 66 BB using the Borgeson box and pump and the stock mounting brackets. I finally have it back together and so I added p/s fluid to the pump. I have a leak before I even got to start it! My question is: Do the 2 threaded studs that mount the pump to the bracket actually penetrate into the reservoir? The supply and return fittings are not leaking. Any help would be appreciated.
One other thing hit me. If I overfilled it, would the excess be coming out of the fill neck once the cap is on?
One other thing hit me. If I overfilled it, would the excess be coming out of the fill neck once the cap is on?
If you check out this link, it will give you a step-by-step on how to rebuild the pump. More importantly in your case how the pump/tank are sealed to one another. It is not a difficult task.
http://www.corvette-restoration.com/...mp_rebuild.htm
At the very least you should replace the large O-ring that seals the front of the pump to the tank and the ones on the back side of the pump to the tank. Follow the steps and you will see what you have to do.
Good luck... GUSTO
Safety Car
Joined: Feb 2006
Posts: 4,142
Likes: 704
The O.P. stated he was using the Borgeson pump, which may have a different set up than the stock one. Instead of the hassle of returning the pump I would contact Borgeson and find out what parts are needed to correct the leaking pump.
.
.
Le Mans Master
Joined: Sep 2003
Posts: 8,812
Likes: 2,029
From: eastern NC
The studs and screw-in-fitting (high pressure fitting on the pump) screw into the pump through the backside of the tank and hold the tank on. The seals/o-rings fit between the pump and tank so that when the studs and screw-in-fitting are installed they seal the tank to the pump. Care must be used when installing the tank to be sure they do not fall out of position as you put the tank on the pump.
The major variation on these pumps (Jeeps used the Saginaw pump as well for a number of years) is the tank. The return pipe on the back of the tank varies on a number of applications to allow the hoses to clear different suspension pieces. Some come off at 90 degrees and others straight off and a variety of in between angles.
Also on some the filler pipe is canted forward from vertical for clearance to allow room to add fluid and remove the cap/dipstick. Tanks are pretty easily interchanged for the most part. Just be sure to use new O-rings and seals if you do.
Good luck... GUSTO