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 ball joint. Loosen it and use special tool MB991897 to avoid possible damage to the ball joint threads. Hang special tool MB991897 with cord to prevent it from falling. |
Scheme 1
Scheme 2
Scheme 3
- Install 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. Using special tool MB990326, measure the ball joint breakaway torque. Standard value: 1.0 - 3.0 N.m (8.9 - 26.6 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.
- Install the tie rod end to the knuckle, then tighten a new self-locking nut to the specified torque. Tightening torque: 25+/-5 N.m (19+/-3 ft-lb)
Scheme 4
- 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: 850+/-100 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: 32 N (7.2 lb) or less Fluctuation allowance: 6.0 N (1.35 lb) or less
- If the measured value exceeds the standard value, refer to «INSPECTION PROCEDURE 2: Difficult Steering Wheel Operation (Insufficient Power Assist)»(ref-183225-S22306698332005101700000) .
STEERING GEAR TOTAL PINION TORQUE CHECK
Required Special Tool
- MB991006: Preload Socket
| CAUTION | When holding the steering gear in a vice, secure its mounting positions. If it is secured in any other place, the gear housing may become deformed or damaged. |
Scheme 5
- 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: 0.8 - 1.8 N.m (7.1 - 15.9 in-lb) [Change in torque: 0.49 N.m (4.3 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, rack support spring, rack support and replace any parts if necessary.
Scheme 6
- Give 10 hard swings to the tie rod.
- Measure the tie rod swing resistance with a spring scale. Standard value: 8 - 27 N (1.8 - 6.1 lb) [1.5 - 4.9 N.m (13.2 - 43.4 in-lb)]
- If the measured value exceeds the standard value, replace the tie rod.
- If the measured value is below the standard value, the tie rod can be re-used if it swings smoothly without excessive play.
>> 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 7
- 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: 0.8 - 1.8 N.m (7.1 - 15.9 in-lb) [Change in torque: 0.49 N.m (4.3 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 torque 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 | |
| Crossmember mounting bolt | 167 ± 9 N.m (123 ± 7 ft-lb) |
| Crossmember mounting bolt | 49 ± 10 N.m (37 ± 7 ft-lb) |
| Crossmember mounting nut | 167 ± 9 N.m (123 ± 7 ft-lb) |
| Engine rear roll stopper rod connecting nut | 52 ± 7 N.m (39 ± 5 ft-lb) |
| Engine rear roll stopper rod bracket mounting bolt | 45 ± 5 N.m (34 ± 3 in-lb) |
| Lower arm and crossmember connecting bolt | 186 ± 10 N.m (138 ± 7 ft-lb) |
| Pressure hose connecting bolt | 57 ± 7 N.m (42 ± 5 ft-lb) |
| Return tube flare nut | 15 ± 3 N.m (11 ± 2 ft-lb) |
| Return tube mounting bolt | 12 ± 2 N.m (102 ± 22 in-lb) |
| Stabilizer link connecting nut | 39 ± 5 N.m (29 ± 3 ft-lb) |
| Steering gear mounting bolt | 70 ± 10 N.m (52 ± 7 ft-lb) |
| Tie rod end jam nut | 52 ± 2 N.m (38 ± 2 ft-lb) |
| End plug | 59 ± 10 N.m (44 ± 7 ft-lb) |
| Jam nut | 59 ± 10 N.m (44 ± 7 ft-lb) |
| Jam nut | 25 ± 4 N.m (18 ± 4 ft-lb) |
| Rack support cover | 23 ± 2 N.m (17 ± 1 ft-lb) |
| Tie rod end | 88 ± 10 N.m (65 ± 7 ft-lb) |
| Valve housing bolt | 22 ± 4 N.m (16 ± 3 ft-lb) |
| Power steering hose | |
| Cooler tube clamp bolt | 12 ± 2 N.m (102 ± 22 in-lb) |
| Oil pump eye bolt | 57 ± 7 N.m (42 ± 5 ft-lb) |
| Oil reservoir bolt | 12 ± 2 N.m (102 ± 22 in-lb) |
| Pressure hose, return hose, return tube clamp bolt | 12 ± 2 N.m (102 ± 22 in-lb) |
| Return tube flare nut | 15 ± 3 N.m (11 ± 2 ft-lb) |
| Power steering oil pump | |
| Connector | 39 ± 5 N.m (29 ± 3 ft-lb) |
| Heat protector mounting bolt | 22 ± 4 N.m (16 ± 3 ft-lb) |
| Oil pump mounting bolt | 22 ± 4 N.m (16 ± 3 ft-lb) |
| Power steering pump bracket mounting bolt | 40 ± 5 N.m (30 ± 3 ft-lb) |
| Pressure hose connecting nut | 18 ± 3 N.m (13 ± 2 ft-lb) |
| Suction connector mounting bolt | 21 ± 3 N.m (16 ± 2 ft-lb) |
| Steering shaft | |
| Shaft cover mounting bolt | 5.0 ± 1.0 N.m (44 ± 9 in-lb) |
| Steering column shaft assembly and steering gear connecting bolt | 18 ± 2 N.m (13 ± 2 ft-lb) |
| Steering column shaft assembly bolt | 12 ± 2 N.m (102 ± 22 in-lb) |
| Steering wheel | |
| Steering wheel mounting bolt | 50 ± 5 N.m (37 ± 4 ft-lb) |
FASTENER TIGHTENING SPECIFICATIONS
GENERAL SPECIFICATIONS
| ITEM | SPECIFICATION | |
|---|---|---|
| Power steering gear box | Type | Rack and pinion |
| Stroke ratio (Rack stroke/Steering wheel maximum turning radius) | 68.61 | |
| Oil pump | Type | Vane type |
| Displacement cm 3 /rev (cu in/rev) | 9.6 (0.59) | |
| Relief set pressure MPa (psi) | 8.4-9.0 (1,219-1,306) | |
General Specifications
