Power steering pump seal problems
Thread Starter
Launching!
Joined: Dec 2011
Posts: 242
Likes: 4
From: Alabama
Power steering pump seal problems I have a 05 corvette power steering pump on my ls2 and the seal on the shaft just started poring after a hard run. I did have to put a smaller pulley on the shaft to clear the upper a frame. I do turn this engine at 7000 rpm and with the smaller pulley it turns faster than with the stock pulley. I am running the stock gear box on my 67 camaro. My question is , is this a fluke or did I blow the seal out. Is it more than it can stand with the smaller pulley. Also I would not mind reducing the pressure if any of you think it would help. Any input would be great.
It is possilbe that the higher engine rpm and the smaller puller might have caused the seal to fail. Have you also considered using a under/smaller crank blanacer/pully ?. That would help lower the belt and pully speeds.
BC
BC
Thread Starter
Launching!
Joined: Dec 2011
Posts: 242
Likes: 4
From: Alabama
I was just unsure if this is a common problem with the corvette pumps. It was a new pump , but it did sit on the shelf for about 3 years before it was installed. I have now about 100 miles on it since install. It has several 7000 rpm cycles on it.
I had concidered that. I was not sure if that would hirt my engine temps at stop and go traffic at 90+ degrees. I do street drive more than track. I do take it to the track about 3 times a year just to play.
I was just unsure if this is a common problem with the corvette pumps. It was a new pump , but it did sit on the shelf for about 3 years before it was installed. I have now about 100 miles on it since install. It has several 7000 rpm cycles on it.
I was just unsure if this is a common problem with the corvette pumps. It was a new pump , but it did sit on the shelf for about 3 years before it was installed. I have now about 100 miles on it since install. It has several 7000 rpm cycles on it.
Andrew
Thread Starter
Launching!
Joined: Dec 2011
Posts: 242
Likes: 4
From: Alabama
Not much response on this so maybe its just a fluke my shaft seal went bad on my new pump. I suppose I will get a seal from gm and replace it and see what happens without changing anything on the pump pressure .If it does it again I will know it is a problem with my set up. I just did not know if anyone had this same problem and had success fixing it.
Staging Lane
Joined: Mar 2005
Posts: 81
Likes: 0
From: Baton Rouge
Seal failures maybe associated with over pressure
Some rack and pinion set ups are limited to the pressure it can handle
I have a DSE rack (1100 psi max) per art morrison chassis
Corvette p/s pump is 1200 psi
There is a company that makes a kit to lower p/s press
Borgenson supplies a kit ,I got mine thru jegs performance for < $20
Dropped pressure to 800 psi to start with
Steve
Some rack and pinion set ups are limited to the pressure it can handle
I have a DSE rack (1100 psi max) per art morrison chassis
Corvette p/s pump is 1200 psi
There is a company that makes a kit to lower p/s press
Borgenson supplies a kit ,I got mine thru jegs performance for < $20
Dropped pressure to 800 psi to start with
Steve
Thread Starter
Launching!
Joined: Dec 2011
Posts: 242
Likes: 4
From: Alabama
Seal failures maybe associated with over pressure
Some rack and pinion set ups are limited to the pressure it can handle
I have a DSE rack (1100 psi max) per art morrison chassis
Corvette p/s pump is 1200 psi
There is a company that makes a kit to lower p/s press
Borgenson supplies a kit ,I got mine thru jegs performance for < $20
Dropped pressure to 800 psi to start with
Steve
Some rack and pinion set ups are limited to the pressure it can handle
I have a DSE rack (1100 psi max) per art morrison chassis
Corvette p/s pump is 1200 psi
There is a company that makes a kit to lower p/s press
Borgenson supplies a kit ,I got mine thru jegs performance for < $20
Dropped pressure to 800 psi to start with
Steve
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Try to get a temp read on the fluid. A cheapo "stick type" thermometer should do it. Hi psi, combined w/ higher gpm, can cause the fluid to boil.
That WILL cook the seal.
Turbo Buicks, [86/7], had that issue. It was solved w/ a resevior from another model Buick.
That WILL cook the seal.
Turbo Buicks, [86/7], had that issue. It was solved w/ a resevior from another model Buick.
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Launching!
Joined: Dec 2011
Posts: 242
Likes: 4
From: Alabama
At this point I cant run it. It pours out of the shaft seal. So it has to come apart first. I would like to make any adjustments I need to while it is off. So you are saying if I lowered the pressure and restrict the flow and if I have good feel of the steering that making those changes would help.
TECH Fanatic
Joined: May 2010
Posts: 1,081
Likes: 8
From: Atlanta, Ga
There is a thread here that details the various pump pressures of a host of the popular pumps. The same thread also details the method of altering pump output. I am using a late S10 pump with a different reservoir housing and the Grand Cherokee steering box. I reduced pump pressure which gave much better steering input and reduced fluid temp.
https://ls1tech.com/forums/conversio...truck-etc.html
https://ls1tech.com/forums/conversio...truck-etc.html
Staging Lane
Joined: Mar 2005
Posts: 81
Likes: 0
From: Baton Rouge
Heat is generated from
1. P/S usage in turning ,especially going from lock to lock
2. Engine compartment heat
Do not believe heat is your enemy
Fix leak and drop pressure
Using kit by Borgenson stack washers to get pressure you need
I am starting at 800 psi and waiting to see how it feels on the road
Changing pressures is a simple fix
1. P/S usage in turning ,especially going from lock to lock
2. Engine compartment heat
Do not believe heat is your enemy
Fix leak and drop pressure
Using kit by Borgenson stack washers to get pressure you need
I am starting at 800 psi and waiting to see how it feels on the road
Changing pressures is a simple fix
Thread Starter
Launching!
Joined: Dec 2011
Posts: 242
Likes: 4
From: Alabama
Heat is generated from
1. P/S usage in turning ,especially going from lock to lock
2. Engine compartment heat
Do not believe heat is your enemy
Fix leak and drop pressure
Using kit by Borgenson stack washers to get pressure you need
I am starting at 800 psi and waiting to see how it feels on the road
Changing pressures is a simple fix
1. P/S usage in turning ,especially going from lock to lock
2. Engine compartment heat
Do not believe heat is your enemy
Fix leak and drop pressure
Using kit by Borgenson stack washers to get pressure you need
I am starting at 800 psi and waiting to see how it feels on the road
Changing pressures is a simple fix