Grand Marquis V8-351 5.8L (1982)
Steering Gear: Service and Repair
Disassembly
Fig. 3 Ball nut and valve housing disassembled.
1.
Hold steering gear over drain pan in an inverted position and cycle input shaft six times to drain remaining fluid from gear.
2.
Remove locknut and brass thrust washer from adjusting screw.
3.
Turn input shaft to either stop, then turn it back approximately 1{5-8} turns to center the gear.
4.
Remove two sector shaft cover screws and identification tag.
5.
Tap lower end of sector shaft with a soft-faced hammer to loosen it, then lift cover and shaft from housing as a unit. Discard O-ring.
6.
Turn sector shaft cover counterclockwise off adjuster screw.
7.
Remove valve housing attaching bolts. Lift valve housing from gear housing while holding piston to prevent it from rotating off worm shaft.
Remove valve housing and lube passage O-rings and discard.
8.
Stand valve body and piston on end with piston end down. Rotate input shaft counterclockwise out of piston, allowing balls to drop into piston.
9.
Place a cloth over open end of piston and turn it upside down to remove balls.
10.
Remove ball guide from ball nut and remove clamp and guides, Fig. 3.
11.
Hold valve in a fixture and remove race nut set screw and race retaining nut.
12.
Carefully slide input shaft, worm and valve out of valve housing. Due to the close diametrical clearance between valve spool and housing, the
slightest cocking of the spool may cause it to jam in housing.
13.
Remove shim from valve housing.
