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4/5/09 9:33pm - Original Message: 'Steering problems'
ossw1
Former Member
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Rocklin, CA - USA

Vette(s):
1970 T-Top350/350hp numbers matching 4 speed. It's a mess and 1970 Convertible 4 speed.

Joined: 4/2/2005
Posts: 484
On the 81 when I bought it was hard to steer and when I got it home found out that there was not fluid in the pump. So put fluid in the pump and look underneath and it looks like the power steering valve leaks. So when I drove it the steering wheel would jerk right at times. The faster I went the car seem to be all over the road not so bad at at lower speed. Not sure if the valve or pump is leaking I will do the talcum powder test this week. The hoses seem good. So should I replace all of the above? When I test drove the car it ran straight and good.
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4/6/09 7:14am - Reply: 'Steering problems'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19457
The control valve is notorious about leaking. Once you added the fluid, you need to "bleed" the air out, which involves turning the steering wheel from lock-lock several times, but not real fast. Air in the system will cause it to "jump" while driving, until the air is purged. Normal driving should, purge the air, but it doesn't always do it very quickly.
If the control valve is leaking, it can be rebuilt/resealed, you can get an exchange, or a new replacement.
It may also need to be adjusted. There are a couple of threads on how to do that here somewhere.

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Joel Adams
C3VR Lifetime Member #56    
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             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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4/6/09 5:09pm - Reply: 'Steering problems'
ossw1
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Rocklin, CA - USA

Vette(s):
1970 T-Top350/350hp numbers matching 4 speed. It's a mess and 1970 Convertible 4 speed.

Joined: 4/2/2005
Posts: 484
Hey Adam I drove the car around a good five minutes and it still did it. Should I just sit there and move the steering wheel back and forth with the car running?
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4/6/09 5:20pm - Reply: 'Steering problems'
dskopp
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Oak Creek, WI - USA

Vette(s):
1981 Great White Shark. Red Interior, 350/190hp. PS, PB (SS), A/C CC, T-Tops, Going to remain as Stock as possible. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vetts Car Club. 175,000 Original miles!!

Joined: 5/21/2008
Posts: 1956
You need to start the car and while it is running move the wheel from lock to lock.  I had a leak and replaced the power steering pump.  The rear seal was bad!
Dan


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4/6/09 5:30pm - Reply: 'Steering problems'
ossw1
Former Member
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Rocklin, CA - USA

Vette(s):
1970 T-Top350/350hp numbers matching 4 speed. It's a mess and 1970 Convertible 4 speed.

Joined: 4/2/2005
Posts: 484
Ok I will do that and see what happens.
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4/6/09 5:32pm - Reply: 'Steering problems'
dskopp
Former Member
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Oak Creek, WI - USA

Vette(s):
1981 Great White Shark. Red Interior, 350/190hp. PS, PB (SS), A/C CC, T-Tops, Going to remain as Stock as possible. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vetts Car Club. 175,000 Original miles!!

Joined: 5/21/2008
Posts: 1956
okee dookie.  Let us know what you find out !!
Approve


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4/6/09 11:55pm - Reply: 'Steering problems'
2tonevette1981
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Hillsboro, TX - USA

Vette(s):
1981 beige/bronze

Joined: 3/2/2008
Posts: 147
My car did the same when I bought it. At low speeds no problem, but the faster you went the harder it pulled. It was the control valve which was leaking. If you change the control valve you may want to change the steering cylinder also. It is notorious for leaking too. I found mine on ebay at a pretty good price and all the usual sources have them also ie ecklers, rics, etc. Once I changed them ran strait as if on rails

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4/11/09 8:16pm - Reply: 'Steering problems'
ossw1
Former Member
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Rocklin, CA - USA

Vette(s):
1970 T-Top350/350hp numbers matching 4 speed. It's a mess and 1970 Convertible 4 speed.

Joined: 4/2/2005
Posts: 484
Well the car still jerks to the right. I did notice when I set at ideal and give it gas you can see the steering wheel move to the right every time I rev it up. So I guess I will replace the Valve and cylinder .
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4/11/09 9:37pm - Reply: 'Steering problems'
dskopp
Former Member
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Oak Creek, WI - USA

Vette(s):
1981 Great White Shark. Red Interior, 350/190hp. PS, PB (SS), A/C CC, T-Tops, Going to remain as Stock as possible. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vetts Car Club. 175,000 Original miles!!

Joined: 5/21/2008
Posts: 1956
Did changing the cylinder and valve do the trick for you?

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4/12/09 12:15am - Reply: 'Steering problems'
2tonevette1981
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Hillsboro, TX - USA

Vette(s):
1981 beige/bronze

Joined: 3/2/2008
Posts: 147
absolutely did the trick...mine did exactly what you say yours is doing

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4/12/09 9:44am - Reply: 'Steering problems'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19457
[QUOTE=ossw1] Well the car still jerks to the right. I did notice when I set at ideal and give it gas you can see the steering wheel move to the right every time I rev it up. So I guess I will replace the Valve and cylinder .[/QUOTE]

If the valve and/or the cylinder is NOT leaking(and you stated you think the valve is leaking), why replace? The steering turning by itself indicates an adjustment issue with the control valve. The adjustment is not that hard to do. Of course, if the valve is actually leaking, it can be repaired, or replaced, either way. Even so, a new/rebuilt valve will still need to be adjusted. They supposedly get them adjusted close when they build them, but....sometimes their close ain't close enough!
There are a couple of threads here on how to adjust the valve...

Here's One!!!

And another Adams' Apple2009-04-12 07:56:31

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Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
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4/12/09 10:42am - Reply: 'Steering problems'
2tonevette1981
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Hillsboro, TX - USA

Vette(s):
1981 beige/bronze

Joined: 3/2/2008
Posts: 147
Adam is correct...if they are not leaking no need to replace...what I did to adjust is I took the cap over the adjustment nut off and drove it to see which way it pulled and would stop, turn the steering wheel as far right as possible to get access to the adjustment nut and make a small adjustment and would drive it again and repeat until it stopped pulling...make sure you turn off the engine before adjusting. If you should adjust it too much the steering could violantly swing the other way and hurt you while your arm is in there...TURN THE ENGINE OFF !!!!!!!

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4/12/09 4:51pm - Reply: 'Steering problems'
rraider1
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Woodland, WA - USA

Vette(s):
1977 T-Top,350,Auto Black Ruby Pearl,Steeroids R&P conversion

Joined: 10/14/2003
Posts: 1152

The problems with the steering control valve and my steering box being worn, is  it what convince me to put the steeroids rack and pinion on Mine. I went through 3 control valve in the 12 years I have owned my 77. You should be able to jack the front up and adjust the valve for centering. if you have to make further adjustments, i would say the valve is defective. I would replace the control Valve.

Is their not a pressure releif valve on the power steering pump to keep the pressure within limits, if someone replaced the power steering pump their was is fittings that need to be transfered.


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4/13/09 9:11pm - Reply: 'Steering problems'
ossw1
Former Member
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Rocklin, CA - USA

Vette(s):
1970 T-Top350/350hp numbers matching 4 speed. It's a mess and 1970 Convertible 4 speed.

Joined: 4/2/2005
Posts: 484
Hey I have had 2 power steering control valves thst have leak? So adjusting the valve will take car of this? I have look at the valves and don't see where I could adjust them.
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4/13/09 9:55pm - Reply: 'Steering problems'
Adams' Apple Lifetime Member
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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 19457
IF the valve is out of adjustment, then yes, correcting the adjustment will cure the tendency for the car to dart, and the wheel to turn by itself. It will not stop a leak, tho.
The adjustment is under the metal cap on the end of the valve, similar to the dust-cap on the front wheel hubs, where the bearings are. I'll see if I can locate a decent pic...


                                                 

Please read thru the above linked threads for the procedure, AND the safety cautions!Adams' Apple2009-04-13 20:06:10

____________________________________
Joel Adams
C3VR Lifetime Member #56    
My Link


(click for Texas-sized view!)
             NCRS

"Money can't buy happiness -- but somehow it's more comforting to cry in a CORVETTE than in a Kia"
 Reply Reply  Quote Reply w/Quote
4/16/09 8:41pm - Reply: 'Steering problems'
ossw1
Former Member
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Rocklin, CA - USA

Vette(s):
1970 T-Top350/350hp numbers matching 4 speed. It's a mess and 1970 Convertible 4 speed.

Joined: 4/2/2005
Posts: 484
Adam thanks for the pic's. Put the car up on jacks pop off the cap started the engine and did as instructed. Now she drive's straight and true. On to the next thing which will be taking out the radiator for a clean and test. There seems to be a small leak around the neck. Once again THANKS
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4/16/09 9:44pm - Reply: 'Steering problems'
my7t1 Lifetime Member
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Dorr, MI - USA

Vette(s):
71 Colonnade Hardtop Coupe Torch Red with black interior originally L48 built to push around 360hp

Joined: 8/21/2002
Posts: 2580
After reading this post I went and looked at the spot where I store the Vette looking for possible engine oil leaks. Well no engine oil but a nice puddle of PS fluid was there. Got her up in the air and there was fluid leaking out of the control valve dust cap. Got a valve, popped it in, and I didn't even have to adjust it. Man I tell ya, I had no idea how bad that car was steering until I did this.
 
Thanks for postin Dave. This thread told me just what to do. Thumbs Up


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4/16/09 10:27pm - Reply: 'Steering problems'
ossw1
Former Member
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Rocklin, CA - USA

Vette(s):
1970 T-Top350/350hp numbers matching 4 speed. It's a mess and 1970 Convertible 4 speed.

Joined: 4/2/2005
Posts: 484
Thats the beauty of this web site. A group of individuals sharing there passion.
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4/16/09 11:02pm - Reply: 'Steering problems'
dskopp
Former Member
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Oak Creek, WI - USA

Vette(s):
1981 Great White Shark. Red Interior, 350/190hp. PS, PB (SS), A/C CC, T-Tops, Going to remain as Stock as possible. Served three years in Active Duty Army, then Retired Air Force after 34 years! Badger State Vetts Car Club. 175,000 Original miles!!

Joined: 5/21/2008
Posts: 1956
We all love the satisfaction of helping!!!!

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1/14/10 4:17pm - Reply: 'Steering problems'
frstvette
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Fresno, TX - USA

Vette(s):
1980 corvette

Joined: 1/15/2007
Posts: 240
can someone give me the link for control valve adjust?

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