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 a cord to prevent it from falling. |
Scheme 1
Scheme 2
Scheme 3
- Install special tool MB991897 as shown in the illustration.
- 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 illustration.
- 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: 0.5-3.5 N.m (4.4-31.0 in-lb)
- If the breakaway torque exceeds the standard value, replace the tie rod end assembly.
- If the breakaway torque is under the standard value, check the ball joint for end play or ratcheting. If there is 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: 29 +/- 4 N.m (21 +/- 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 allow to idle.
- 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: 35 N (7.9 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)"»(ref-308275-S32949494462009020200000).
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. Do not loosen the adjust screw more than 2 rotations. If the adjust screw is loosened more than 2 rotations, or if it is removed, replace the steering gear assembly. |
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: 0.8-1.9 N.m (7.1-16.8 in-lb) [Change in torque: 0.7 N.m (6.2 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 total pinion torque or the change in torque is outside the standard value, loosen the rack support cover once and retighten it to the specified torque 12 +/- 2 N.m (107 +/- 17 in-lb). Then loosen the rack support cover 10 degrees, and check the pinion torque again. If the total pinion torque cannot be adjusted to within the standard range by adjusting the rack support cover, replace the power steering gear.
Scheme 6
- Give 10 hard swings to the tie rod.
- Measure the tie rod swing resistance with a spring scale. Standard value: 3.6-17.6 N (0.81-3.96 lb) [Swing torque: 1.0-4.9 N.m (8.9-43.3 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.
>> M << 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 4 to 6 seconds to check the total pinion torque and the change in torque. Standard value: Total pinion torque: 0.8-1.9 N.m (7.1-16.8 in-lb) [Change in torque: 0.7 N.m (6.2 in-lb) or less] CAUTION: When adjusting, set at the highest value of the standard value range. NOTE: If the total pinion toque cannot be adjusted to the standard value within the standard range, replace the power steering gear and linkage assembly.
- If the total pinion torque or the change in torque is outside the standard value, loosen the rack support cover once and retighten it to the specified torque 12 +/- 2 N.m (107 +/- 17 in-lb). And then loosen the rack support cover 10 degrees, and check the pinion torque again.
FASTENER TIGHTENING SPECIFICATIONS
| ITEM | SPECIFICATION |
|---|---|
| Power steering gear box and linkage (removal and installation) | |
| Crossmember mounting bolt | 180 +/- 20 N.m (133 +/- 14 ft-lb) |
| Crossmember mounting nut | 180 +/- 20 N.m (133 +/- 14 ft-lb) |
| Front axle crossmember stay mounting bolt and nut | 83 +/- 12 N.m (61 +/- 9 ft-lb) |
| Lower arm and crossmember connecting nut | 165 +/- 15 N.m (122 +/- 11 ft-lb) |
| Power steering gear bracket mounting bolt | 58 +/- 7 N.m (43 +/- 5 ft-lb) |
| Pressure tube flare nut | 15 +/- 3 N.m (11 +/- 2 ft-lb) |
| Pressure hose clamp bolt and nut | 12 +/- 2 N.m (102 +/- 22 in-lb) |
| Rear roll stopper mounting bolt | 58 +/- 7 N.m (43 +/- 5 ft-lb) |
| Rear roll stopper to power steering gear bracket connecting bolt | 58 +/- 7 N.m (43 +/- 5 ft-lb) |
| Rear roll stopper to rear roll stopper bracket connecting nut | 58 +/- 7 N.m (43 +/- 5 ft-lb) |
| Return tube flare nut | 15 +/- 3 N.m (11 +/- 2 ft-lb) |
| Return tube clamp bolt and nut | 12 +/- 2 N.m (102 +/- 22 in-lb) |
| Stabilizer bracket | 58 +/- 7 N.m (43 +/- 5 ft-lb) |
| Steering column assembly and steering gear connecting bolt | 18 +/- 2 N.m (13 +/- 2 ft-lb) |
| Steering gear and linkage mounting bolt | 83 +/- 12 N.m (61 +/- 9 ft-lb) |
| Steering gear and linkage protector mounting bolt | 12 +/- 2 N.m (102 +/- 22 in-lb) |
| Tie rod end to knuckle self-locking nut | 29 +/- 4 N.m (21 +/- 3 ft-lb) |
| Power steering gear box and linkage (disassembly and assembly) | |
| Power steering oil feed tube assembly flare nut | 13 +/- 3 N.m (116 +/- 26 in-lb) |
| Steering gear inner nut (pinion and valve assembly jam nut) | 25 +/- 4 N.m (18 +/- 3 ft-lb) |
| Steering gear inner nut (rack support cover jam nut) | 59 +/- 10 N.m (44 +/- 7 ft-lb) |
| Steering gear nut (tie rod end jam nut) | 52 +/- 2 N.m (38 +/- 2 ft-lb) |
| Steering gear plug (end plug) | 59 +/- 10 N.m (44 +/- 7 ft-lb) |
| Steering gear rack support cover | 12 +/- 2 N.m (107 +/- 17 in-lb) |
| Steering tie rod | 84 +/- 14 N.m (62 +/- 10 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 nut | 12 +/- 2 N.m (102 +/- 22 in-lb) |
| Pressure hose, pressure tube, return tube clamp bolt | 12 +/- 2 N.m (102 +/- 22 in-lb) |
| Pressure hose and pressure tube connecting nut | 34 +/- 5 N.m (25 +/- 4 ft-lb) |
| Pressure tube, return tube flare nut | 15 +/- 3 N.m (11 +/- 2 ft-lb) |
| Return tube clamp nut | 12 +/- 2 N.m (102 +/- 22 in-lb) |
| Power steering oil pump < 2.4L > | |
| Oil pump eye bolt | 57 +/- 7 N.m (42 +/- 5 ft-lb) |
| Power steering oil pump mounting bolt | 22 +/- 4 N.m (16 +/- 3 ft-lb) |
| Power steering oil pump bracket mounting bolt | 24 +/- 4 N.m (18 +/- 3 ft-lb) |
| Pressure hose clamp bolt | 12 +/- 2 N.m (102 +/- 22 in-lb) |
| Power steering oil pump < 3.8L > | |
| Belt tensioner bracket to power steering pump bracket connecting bolt (long) | 41 +/- 8 N.m (30 +/- 6 ft-lb) |
| Belt tensioner bracket to power steering pump bracket connecting bolt (short) | 49 +/- 9 N.m (36 +/- 7 ft-lb) |
| Belt tensioner pulley mounting nut | 15 +/- 4 N.m (11 +/- 3 ft-lb) |
| Oil pump eye bolt | 57 +/- 7 N.m (42 +/- 5 ft-lb) |
| Power steering oil pump mounting bolt | 46 +/- 8 N.m (34 +/- 6 ft-lb) |
| Power steering oil pump mounting nut | 42 +/- 7 N.m (31 +/- 5 ft-lb) |
| Power steering oil pump bracket mounting bolt | 41 +/- 8 N.m (30 +/- 6 ft-lb) |
| Pressure hose clamp nut | 12 +/- 2 N.m (102 +/- 22 in-lb) |
| Steering shaft | |
| Steering column assembly and steering gear connecting bolt | 18 +/- 2 N.m (13 +/- 2 ft-lb) |
| Steering column assembly mounting bolt | 12 +/- 2 N.m (102 +/- 22 in-lb) |
| Steering wheel | |
| Steering wheel dynamic damper | 3.9 +/- 0.9 N.m (35 +/- 8 in-lb) |
| Steering wheel mounting nut | 41 +/- 8 N.m (30 +/- 6 ft-lb) |
| Torx screw | 9.0 +/- 2.0 N.m (80 +/- 17 in-lb) |
FASTENER TIGHTENING SPECIFICATIONS
GENERAL SPECIFICATIONS
| ITEM | SPECIFICATION | ||
|---|---|---|---|
| 2.4L ENGINE | 3.8L ENGINE | ||
| Steering wheel | Type | 4-spoke type | 4-spoke type |
| Outside diameter mm (in) | 370 (14.6) | 370 (14.6) | |
| Maximum number of turns | 2.64 | 2.64 | |
| Steering column | Column mechanism | Shock absorbing mechanism and Tilt steering mechanism | |
| Power steering type | Integral type | Integral type | |
| Oil pump | Type | Vane pump | Vane pump |
| Basic discharge amount cm 3 /rev. (cu in/rev) | 9.6 (0.59) | 9.6 (0.59) | |
| Relief pressure MPa (psi) | 8.8 (1,277) | 9.8 (1,422) | |
| Reservoir type | Separate type (plastic) | ||
| Pressure switch | Equipped | Equipped | |
| Steering gear | Type | Rack and pinion | Rack and pinion |
| Stroke ratio (Rack stroke/Steering wheel Maximum turning radius) | 49.62 | 49.62 | |
| Rack stroke mm (in) | 131 (5.2) | 131 (5.2) | |
GENERAL SPECIFICATIONS
SERVICE SPECIFICATIONS
| ITEM | STANDARD VALUE | LIMIT | ||
|---|---|---|---|---|
| Steering wheel free play mm (in) | With engine running | 30 (1.2) | ||
| With engine stopped | 10 (0.4) or less | |||
| Steering angle | Inside wheel | 31°48' +/- 2°00' | ||
| Outside wheel (reference) | 27°06' | |||
| Toe-in mm (in) | 0 +/- 3 (0 +/- 0.12) | |||
| Tie rod end ball joint breakaway torque N.m (in-lb) | 0.5-3.5 (4.4-31.0) | |||
| Tie rod swing resistance N (lb) [Tie rod swing torque N.m (in-lb)] | 3.6-17.6 (0.81-3.96) [1.0-4.9 (8.9-43.3)] | |||
| Stationary steering effort N (lb) [Fluctuation allowance N (lb)] | 35 (7.9) or less [5.9 (1.33) or less] | |||
| Oil pump pressure MPa (psi) | Oil pump relief pressure | 8.3-8.8 (1,204-1,276) < 2.4L engine > 9.3-9.8 (1,349-1,421) < 3.8L engine > | ||
| Pressure under no-load conditions | 0.8-1.0 (116-145) | |||
| Steering gear retention hydraulic pressure | 8.3-8.8 (1,204-1,276) < 2.4L engine > 9.3-9.8 (1,349-1,421) < 3.8L engine > | |||
| Oil pressure switch operating pressure MPa (psi) | OFF --> ON | 1.8-2.4 (261-348) | ||
| ON --> OFF | 0.8-1.4 (116-203) | |||
| Steering gear total pinion torque N.m (in-lb) [Change in torque N.m (in-lb)] | 0.8-1.9 (7.1-16.8) [0.7 (6.2) or less] | |||
| Opening dimension of special tool MB991561 mm (in) | 1.9 (0.07) | |||
| Band crimped width mm (in) | 1.4-1.8 (0.06-0.07) | |||
SERVICE SPECIFICATIONS