Flow Control Valve

Removing Valve Spring And O-ring:

1. Remove the two 6 x 16 mm flange bolts, then remove the housing port cover, valve spring and O-rings.

Flow Control Valve Removal:

2. Remove the flow control valve from the port housing.

Flow Control Valve:

3. Check for wear, burrs, and other damage to the edges of the grooves in the flow control valve.






4. Slip the flow control valve back in the pump and check that it moves in and out smoothly.

^ If OK, go on to step 5, if not, replace the flow control valve.

Control Valve Identification:

^ The original valve was selected for a precise fit in the pump housing bore, so make sure the new one has the same identification mark.






5. Attach a hose to the end of the flow control valve as shown.






6. Then submerge the flow control valve in a container of power steering fluid or solvent, and blow gently on the hose. If air bubbles leak through the flow control valve, replace or repair it as follows.

NOTE: Do not use compressed air.


7. Clamp the bottom end of the flow control valve in a vise with soft jaws.






8. Unscrew the seat in the top end of the flow control valve, and remove any shims, the relief check ball, relief valve and relief valve spring.
9. Clean all the parts in solvent, dry them off, then reassemble and retest the flow control valve.


NOTE: If necessary. relief pressure is adjusted at the factory by adding shims under the seat. If you found shims in your valve, be sure you reinstall as many as you took out.






10. Install the flow control valve in the reverse order of removal.

^ Apply steering grease (HONDA P/N 08733-B070E) to new O-rings.

^ Coat the flow control valve with power steering fluid then install it and valve spring.

NOTE: When replacing the flow control valve, be sure the replacement flow control valve has the same identification letter as the original flow control valve.