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Topic: Jerking to the right

in Forum: C3 Handling Components


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Jerking to the right (1/2)
 5/6/14 6:21pm
osswc
Former Member

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Rocklin, CA - USA

Vette(s):
70 Coup


Joined: 9/24/2012
Posts: 1

Hey I a 70 vette with power steering when I take my hands off the steering wheel the car jerks right. I do not thank its a alignment issue. When I jack up the front end and started the car the steering went right. What would cause this?
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Re: Jerking to the right (2/2)
 5/7/14 12:00pm
rraider1
Former Member

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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: 1165

You need to adj the power steering control valve here is the procedure after R&R


Valve Balancing

The control valve must be adjusted after being disassembled, as outlined in the following procedure. The same procedure may be followed to correct a complaint of harder steering effort required in one direction than the other. 1. Install valve in vehicle. Connect all hoses and fill the

pump reservoir with oil. Do not connect the piston rod to the frame bracket. If the vehicle is already in operation, it will be necessary to detach the piston rod from the frame bracket.

2. With the car on a hoist, start the engine. One of the following two conditions will exist.

a. If the piston rod remains retracted, turn the adjusting nut clockwise until the rod begins to move out. Then turn the nut counter-clockwise until the rod just begins to move in. Now turn the nut clockwise to exactly one-half the rotation needed to change the direction of the piston rod movement.

b. If the rod extends upon starting the pump, move the nut counter-clockwise until the rod begins to move in. Now position the nut exactly one-half the rotation needed to change the direction of the piston rod movement. CAUTION: Do not turn the nut back and forth more than is absolutely necessary to balance the valve. 3. With the valve balanced it should be possible to move the rod in and out manually.

4. Turn off the engine and connect the cylinder rod to the frame bracket. 5. Restart the engine. If the front wheels (still on the hoist) do not turn in either direction from center, the valve has been properly balanced. Correct the valve adjustment if necessary. 6. When the valve is properly adjusted, grease end of valve and install dust cap.

If steering wheel surges, perform the following operation:

7. Air may become trapped in the power steering cylinder, control valve, or lines, causing surging and requiring bleeding of the system.

8. To bleed the system, first place a drain pan or suitable fluid absorbent directly beneath the control valve.

9. Loosen the two lines that cross on the end of the control valve approximately 1/8-1/4 turn (counterclockwise).

10. Start the vehicle while firmly grasping the steering wheel. Turn the steering completely from left to right, while an assistant verifies that a small amount of fluid is spraying out of both lines.

11. After turning the wheel from left to right 3 or 4 times, hold the wheel to the right while an assistant tightens the two lines on the end of the control valve. 12. Check the power steering fluid level and add as necessary. 13. If necessary repeat the valve balancing procedure. Refer to #2-6 under Valve Balancing.

 

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