TIE ROD END BALL JOINT BREAKAWAY TORQUE CHECK
Required Special Tools
- MB990326: Preload Socket
- MB991897: Ball Joint Remover
| CAUTION | Do not remove the nut from the ball joint. Loosen it and use special tool MB991897 to avoid possible damage to the ball joint threads. Hang special tool MB991897 with rope or wire to prevent them from falling. |
Scheme 95
Scheme 96
Scheme 97
- Install the special tool MB991897 as shown in the figure.
- Turn the bolt and knob as necessary to make the jaws of special tool MB991897 parallel, tighten the bolt by hand and confirm that the jaws are still parallel. NOTE: When adjusting the jaws in parallel, make sure the knob is in the position shown in the figure.
- Tighten the bolt with a wrench to disconnect the tie rod end.
- Move the ball joint stud several times and install the nut on the stud. Measure the ball joint breakaway torque with special tool MB990326. Standard value: 0.5 - 2.5 N.m (4.4 - 22.1 in-lb)
- If the breakaway torque exceeds the standard value, replace the tie rod end.
- If the breakaway torque is under the standard value, check the ball joint for end play or ratcheting. If no end play or ratcheting, the ball joint can be re-used. CAUTION: Always use a new ball joint nut as it is a self-locking nut.
- Tighten the nut to the specified torque. Tightening torque: 5 +/- 25 N.m (3 +/- 19 ft-lb)
Scheme 98
- With the vehicle stopped on a flat and paved surface, turn the steering wheel to the straight ahead position.
- Start the engine and set the engine idle speed. Standard value: 50 +/- 700 r/min
- Attach a spring scale to the outer circumference of the steering wheel and measure the steering force required to turn the steering wheel from the straight ahead position to the left and right (within a range of 1.5 turns). Also check to be sure that there is no significant change in the required steering effort. Standard value: Steering effort: 29 N (6.5 lb) or less Fluctuation allowance: 5.9 N (1.33 lb) or less
- If the measured value exceeds the standard value, refer to Inspection Procedure 2 "Difficult Steering Wheel Operation (Insufficient Power Assist) «DIAGNOSIS»(ref-183637-S24818899342005081800000) .
GEAR BOX TOTAL PINION TORQUE CHECK
| CAUTION | When holding the steering gear box assembly in a vice, secure its mounting positions. If it is secured in any other place, the gear housing may become deformed or damaged. |
Using special tool MB991006, rotate the pinion gear at the rate of one rotation in approximately 4 to 6 seconds to check the total pinion torque.
- Standard value: 0.6 - 1.9 N.m (5.3 - 14.2 in-lb)
- [Change in torque: 0.4 N.m (3.5 in-lb) or less]
Note. When measuring, remove the bellows from the rack housing. Measure the pinion torque through the whole stroke of the rack. If the measured value is not within the standard range, first adjust the rack support cover, and then check the total pinion torque again. If the total pinion torque cannot be adjusted to within the standard range by adjusting the rack support cover, check the rack support cover, rack support spring, rack support and replace any parts if necessary.
>> K << TOTAL PINION TORQUE ADJUSTMENT
| CAUTION | Be sure there is no ratcheting or catching when operating the rack towards the shaft. Measure the total pinion torque through the whole stroke of the rack. |
Scheme 99
Scheme 100
- Using special tool MB991006, rotate the pinion shaft at the rate of one rotation in four to six seconds to check the total pinion torque and the change in torque. Standard value: Total pinion torque: 0.6 - 1.6 N.m (5.3 - 14.2 in-lb) [Change in torque: 0.4 N.m (3.5 in-lb) or less] CAUTION: When adjusting, set at the highest value of the standard value range.
- If the total pinion torque or the change in torque is outside the standard value, move the rack support cover 0 - 30 degree angle, and adjust the pinion torque again. NOTE: If the total pinion toque cannot be adjusted to the standard value within the specified return angle, check the rack support cover components and replace any parts if necessary.
FASTENER TIGHTENING SPECIFICATIONS
| ITEM | SPECIFICATION | |
|---|---|---|
| Power steering gear box and linkage | ||
| Cylinder clamp assembly nut, gear box assembly bolt | 70 ± 10 N.m (52 ± 7 ft-lb) | |
| End plug | 59 ± 10 N.m (44 ± 7 ft-lb) | |
| Feed tube flare nut | 15 ± 3 N.m (11 ± 2 ft-lb) | |
| Pinion and valve assembly jam nut | 25 ± 4 N.m (18 ± 4 ft-lb) | |
| Rack support cover | 23 ± 2 N.m (17 ± 1 ft-lb) | |
| Rack support cover jam nut | 59 ± 10 N.m (44 ± 7 ft-lb) | |
| Return hose flare nut, pressure tube flare nut | 15 ± 3 N.m (11 ± 2 ft-lb) | |
| Tie rod | 88 ± 10 N.m (65 ± 7 ft-lb) | |
| Tie rod end nut | 40 ± 5 N.m (29 ± 4 ft-lb) | |
| Valve housing bolt | 22 ± 4 N.m (16 ± 3 ft-lb) | |
| Power steering hose | ||
| Crossmember mounting bolt | 49 ± 10 N.m (36 ± 7 ft-lb) | |
| Crossmember mounting nut | 167 ± 9 N.m (123 ± 7 ft-lb) | |
| Crossmember and lower arm connecting bolt | 167 ± 9 N.m (123 ± 7 ft-lb) | |
| Oil pump eye bolt | 57 ± 7 N.m (42 ± 5 ft-lb) | |
| Oil reservoir, pressure hose, pressure tube, return tube, cooler tube bolt | 12 ± 2 N.m (102 ± 22 in-lb) | |
| Pressure tube flare nut | 15 ± 3 N.m (11 ± 2 ft-lb) | |
| Power steering oil pump | ||
| Oil pump bolt | 22 ± 4 N.m (16 ± 3 ft-lb) | |
| Oil pump bracket bolt | M8 | 22 ± 4 N.m (16 ± 3 ft-lb) |
| M10 | 44 ± 10 N.m (33 ± 7 ft-lb) | |
| Plug assembly | 59 ± 9 N.m (43 ± 7 ft-lb) | |
| Pressure switch assembly | 28 ± 2 N.m (20 ± 2 ft-lb) | |
| Pump cover bolt | 28 ± 1 N.m (21 ± 2 ft-lb) | |
| Suction pipe bolt | 9.9 ± 2.1 N.m (88 ± 18 in-lb) | |
| Power steering wheel and shaft | ||
| Steering shaft and gear box connecting bolt | 18 ± 2 N.m (13 ± 1 ft-lb) | |
| Steering column assembly bolt | 12 ± 2 N.m (102 ± 22 in-lb) | |
| Steering cover assembly bolt | 5.0 ± 1.0 N.m (44 ± 9 in-lb) | |
| Hexagon socket head bolt | 50 ± 5 N.m (37 ± 4 ft-lb) | |
FASTENER TIGHTENING SPECIFICATION
GENERAL SPECIFICATIONS
| ITEM | SPECIFICATION | |
|---|---|---|
| Power steering gear box | Type | Rack and pinion |
| Gear ratio | 45.74 | |
| Oil pump | Type | Vane type |
| Displacement cm 3 /rev (cu in/rev) | 7.2 (0.44) | |
| Relief set pressure MPa (psi) | 8.8 (1,276) | |
General Specification