Rack & Pinion Power Steering Gear ASSY: Overhaul
- PRECAUTION (See AIR BAG RESTRAINT SYSTEMS )
- DISCONNECT BATTERY NEGATIVE TERMINAL
- REMOVE HORN BUTTON ASSY. See AIR BAG RESTRAINT SYSTEMS .
- REMOVE STEERING WHEEL ASSY (See OVERHAUL
)
SST 09950-50013 (09951-05010, 09953-05020, 09954-05021,)
- REMOVE FRONT WHEEL
- REMOVE SPIRAL CABLE SUB-ASSY (See OVERHAUL )
- DISCONNECT TIE ROD ASSY LH
- Remove the cotter pin and nut.
- Using SST, remove the tie rod assy LH from the steering knuckle.
SST 09628-62011
- DISCONNECT TIE ROD ASSY RH
SST 09628-62011
HINT:
Remove the RH side by the same procedures with LH side.
- DISCONNECT STEERING INTERMEDIATE SHAFT SUB-ASSY
- Loosen the bolt and remove the clamp from the steering column hole cover No.1.
- Disconnect the steering column hole cover No.2 from the steering column hole cover No.1.
- Loosen the bolt.
- Place matchmarks on the steering intermediate shaft sub-assy and rack & pinion power steering gear assy.
- Remove the bolt and disconnect the steering intermediate shaft sub-assy.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- DISCONNECT FRONT STABILIZER LINK ASSY LH
- Remove the nut and disconnect the front stabilizer link assy LH from the shock absorber assy front LH.Fig 4: Removing Nut And Disconnecting Front Stabilizer Link Assy LH From Shock Absorber Assy Front LH
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
If the ball joint turns together with the nut, use a hexagon wrench (6 mm) to hold the stud.
- Remove the nut and disconnect the front stabilizer link assy LH from the shock absorber assy front LH.
- DISCONNECT FRONT STABILIZER LINK ASSY RH
HINT:
Remove the RH side by the same procedures with LH side.
- REMOVE FRONT STABILIZER BRACKET NO.1 LH
- Remove the 2 bolts and disconnect the front stabilizer bracket No.1 LH.
- REMOVE FRONT STABILIZER BRACKET NO.1 RH
HINT:
Remove the RH side by the same procedures with LH side.
- DISCONNECT PRESSURE FEED TUBE ASSY
- Using SST, disconnect the return tube assy from the rack & pinion power steering gear assy.
SST 09023-12700
- Using SST, disconnect the pressure feed tube assy from the rack & pinion power steering gear assy.
SST 09023-12700
- Remove the nut and disconnect the return tube assy clamp.
- Using SST, disconnect the return tube assy from the rack & pinion power steering gear assy.
- REMOVE RACK & PINION POWER STEERING GEAR ASSY
- Remove the bolt and disconnect the tube clamp.
- Remove the 2 bolts, 2 nuts and rack & pinion power steering gear assy.
- REMOVE POWER STEERING RACK HOUSING HEAT INSULATOR
- Remove the power steering rack housing heat insulator.
- REMOVE STEERING LEFT TURN PRESSURE TUBE
- Using SST, remove the steering left turn pressure tube.
SST 09023-38200
- Remove the 2 O-rings from the steering left turn pressure tube.
- Using SST, remove the steering left turn pressure tube.
- REMOVE STEERING RIGHT TURN PRESSURE TURN PRESSURE TUBE
- Using SST, remove the steering right turn pressure tube.
SST 09023-38200
- Remove the 2 O-rings from the steering right turn pressure tube.
- Using SST, remove the steering right turn pressure tube.
- FIX RACK & PINION POWER STEERING GEAR ASSY
- Using SST, secure the rack & pinion power steering gear assy.
SST 09612-00012
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
Tape the SST before use.
- Using SST, secure the rack & pinion power steering gear assy.
- REMOVE TIE ROD ASSY LH
- Place matchmarks on the tie rod assy LH and steering rack end sub-assy.
- Loosen the lock nut, and remove the tie rod assy LH and lock nut.
- REMOVE TIE ROD ASSY LH
HINT:
Remove the RH side by the same procedures with LH side.
- INSPECT TIE ROD ASSY LH
- Secure the tie rod assy LH in a vise.
- Install the nut to the stud bolt.
- Flip the ball joint stud back and forth 5 times.
- Using a torque wrench, turn the nut continuously at a rate of 2 - 4 seconds per 1 turn and take the torque reading of the 5th turn.
Turning torque:
0.83 - 3.43 N.m (8.5 - 35.0 kgf.cm, 7.3 - 30.4 in .lbf)
- INSPECT TIE ROD ASSY RH
HINT:
Remove the RH side by the same procedures with LH side.
- REMOVE STEERING RACK BOOT CLIP
- Remove the 2 steering rack boot clips.
- REMOVE STEERING RACK BOOT NO.2 CLAMP
- Using pliers, remove the steering rack boot NO.2 clamp.NOTE: Be careful not to damage the steering rack boot No.2.
- Using pliers, remove the steering rack boot NO.2 clamp.
- REMOVE STEERING RACK BOOT NO.1 CLAMP
HINT:
Remove the steering rack boot No.1 clamp by the same procedures with the steering rack boot No.2 clamp.
NOTE: Be careful not to damage the steering rack boot No.1. - REMOVE STEERING RACK BOOT NO.2.
- Remove the steering rack boot No.2
- REMOVE STEERING RACK BOOT NO.1
HINT:
Remove the steering rack boot No.1 by the same procedures with the steering rack boot NO.2.
- REMOVE STEERING RACK END SUB-ASSY
- Using a screwdriver and a hammer, unstake the claw washer.
NOTE: Avoid any impact to the power steering rack.
- Using 2 SSTs, remove the 2 steering rack ends sub-assy and 2 claw washers.
SST 09922-10010
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE:- Use SST 09922-10010 in the direction shown in Fig 16.
- Securely hold the steering rack end sub-assy with a SST.
- Using a screwdriver and a hammer, unstake the claw washer.
- REMOVE RACK GUIDE
- Using SST, remove the rack guide spring cap nut.
SST 09922-10010
NOTE: Use SST 09922-10010 in the direction shown in Fig 17. - Using SST, remove the rack guide spring cap.
SST 09631-10021
- Remove the compression spring and rack guide.
- Using SST, remove the rack guide spring cap nut.
- REMOVE POWER STEERING CONTROL VALVE
- Using a socket wrench (27 mm), remove the rack housing cap.
- Using SST, hold the control valve and remove the nut.
SST 09616-00011
- Wind vinyl tape around the serrated part of the control valve.
- Remove the dust cover from the control valve housing.
- Remove the 2 bolts and control valve housing.
- Remove the gasket.
- To prevent oil seal lip damage, wind vinyl tape around the serrated part of the control valve.
- Using a plastic hammer, remove the control valve with oil seal from the control valve housing.
- Remove the oil seal from the control valve.
- Using a screwdriver, remove the 4 control valve rings.NOTE: Be careful not to damage the grooves for the control valve ring.
- REMOVE POWER STEERING CONTROL VALVE UPPER OIL SEAL
- Using SST and a press, remove the control valve upper bearing and power steering control valve upper oil seal from the control valve housing.
SST 09950-70010 (09951-07150), 09950-60010 (09951-00250)
- Using SST and a press, remove the control valve upper bearing and power steering control valve upper oil seal from the control valve housing.
- REMOVE CYLINDER END STOPPER
- Using a screwdriver and a hammer, turn the cylinder end stopper clockwise until the wire end is visible through the service hole.
- Using a screwdriver and a hammer, turn the cylinder end stopper counterclockwise, and remove the wire and cylinder end stopper.
- REMOVE POWER STEERING RACK
- Remove the power steering rack and power steering rack bush.
- REMOVE POWER STEERING RACK BUSH
- Remove the power steering rack bush from the power steering rack.
- Using SST, remove the rack bush oil seal.
SST 09527-21011, 09612-24014 (09613-22011)
- Using a screwdriver, remove the O-ring from the power steering rack bush.
- INSPECT POWER STEERING RACK
- Using a dial indicator, check the power steering rack for runout and for teeth wear and damage.
Maximum runout: 0.3 mm (0.012 in.)
- Check the back surface for wear and damage.
- Using a dial indicator, check the power steering rack for runout and for teeth wear and damage.
- REMOVE POWER STEERING CYLINDER TUBE OIL SEAL
- Using SST and a press, remove the power steering cylinder tube oil seal.
SST 09950-70010 (09951-07360), 09950-60010 (09951-00290)
- Using SST and a press, remove the power steering cylinder tube oil seal.
- REMOVE RACK STEERING PISTON RING
- Using a screwdriver, remove the rack steering piston ring and O-ring.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE: Be careful not to damage the grooves for rack steering piston ring.
- Using a screwdriver, remove the rack steering piston ring and O-ring.
- INSTALL RACK STEERING PISTON RING
- Coat a new O-ring with power steering fluid and install it to the power steering rack.
- Expand a new rack steering piston ring with your fingers.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE: Be careful not to over expand the rack steering piston ring. - Coat the new rack steering piston ring with power steering fluid.
- Install the rack steering piston ring to the power steering rack, and settle it down with your fingers.
- INSTALL POWER STEERING CYLINDER TUBE OIL SEAL
- Coat a new power steering cylinder tube oil seal lip with power steering fluid.
SST 09950-60010 (09951-00420, 09951-00250, 09952-06010), 09950-70010 (09951-07360)
- Using SST and a press, install the power steering cylinder tube oil seal.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE:- Make sure that the power steering cylinder tube oil seal is installed facing in the correct direction.
- Take care so that the power steering cylinder tube oil seal will not be reversed as you install it.
- Coat a new power steering cylinder tube oil seal lip with power steering fluid.
- INSTALL POWER STEERING RACK
- Install SST to the power steering rack.
SST 09631-33010
HINT:
If necessary, scrape the burrs off the power steering rack teeth end and burnish.
- Coat the SST with power steering fluid.
- Install the power steering rack into the rack housing.
- Remove the SST.
- Install SST to the power steering rack.
- INSTALL POWER STEERING RACK BUSH
- Using SST and a press, install the rack bush oil seal to the power steering rack bush.
SST 09950-60010 (09951-00400), 09950-70010 (09951-07100)
NOTE: Make sure that the rack bush oil seal is installed facing in the correct direction. - Coat a new O-ring with power steering fluid and install it to the power steering rack bush.
- To prevent rack bush oil seal lip damage, wind vinyl tape around the power steering rack end, and apply power steering fluid.
- Install the power steering rack bush to the power steering rack.
- Using SST and a press, install the rack bush oil seal to the power steering rack bush.
- INSTALL CYLINDER END STOPPER
- Align the installation hole for the wire of the cylinder end stopper with the slot of the rack housing.
- Install a new wire into the cylinder end stopper.
- Using a screwdriver, turn the cylinder end stopper clockwise by 450 +/- 50+/-.
- AIR TIGHTNESS TEST
- Install SST to the rack housing.
SST 09631-12071 (09633-00010)
- Apply vacuum of 53 kPa (400 mmHg, 15.75 in.Hg) for about 30 seconds.
- Check that there is no change in the vacuum.
If there is a change in the vacuum, check the installation of the oil seals.
- Install SST to the rack housing.
- INSTALL POWER STEERING CONTROL VALVE UPPER OIL SEAL
- Coat a control valve upper bearing and a new power steering control valve upper oil seal with power steering fluid.
- Using SST and a press, install the power steering control valve upper oil seal.
SST 09950-70010 (09951-07150), 09950-60010 (09951-00180, 09952-06010, 09951-00320)
- Using SST and a press, install the control valve upper bearing.
SST 09950-70010 (09951-07150), 09950-60010 (09951-00180, 09952-06010, 09951-00340)
- INSTALL POWER STEERING CONTROL VALVE
- Expand 4 new control valve rings with your fingers.NOTE: Be careful not to over expand the control valve ring.
- Coat the 4 control valve rings with power steering fluid.
- Install the 4 control valve rings to the control valve, and settle them down with your fingers.
- Carefully slide the tapered end of SST over the control valve rings until they fit to the control valve.
SST 09631-20081
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NOTE: Be careful not to damage the control valve rings. - To prevent power steering control valve upper oil seal lip damage, wind vinyl tape around the serrated part of the control valve.
- Coat the power steering control valve upper oil seal lip with power steering fluid.
- Install the control valve to the control valve housing.NOTE: Be careful not to damage the control valve ring and power steering control valve upper oil seal lip.
- Coat a new oil seal lip with power steering fluid.
- Using SST and a press, install the oil seal.
SST 09612-22011
NOTE: Make sure that the oil seal is installed facing in the correct direction. - Apply grease to the needle bearing.
- Install a new gasket to the control valve housing.
- Wind vinyl tape around the serration part of the control valve.
- Install the control valve housing to the rack housing with the 2 bolts.
Torque: 21 N.m (214 kgf.cm, 15 ft.lbf)
- Using SST, stop the control valve rotation and install a new lock nut.
Torque: 24.5 N.m (250 kgf.cm, 18 ft.lbf)
SST 09616-00011
- Apply sealant to 2 or 3 threads of the rack housing cap.
Sealant:
Part No. 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent
- Using a socket wrench (27 mm), install the rack housing cap.
Torque: 58.5 N.m (597 kgf.cm, 43 ft.lbf)
- Using a punch and a hammer, stake the rack housing cap and rack housing.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Expand 4 new control valve rings with your fingers.
- INSTALL RACK GUIDE
- Apply molybdenum disulfide lithium base grease to the rack guide.
- Install the rack guide.
- Install the compression spring.
- Apply sealant to 2 or 3 threads of the rack guide spring cap.
Sealant:
Part No. 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent
- Temporarily install the rack guide spring cap.
- ADJUST TOTAL PRELOAD
- To prevent the steering rack teeth from damaging the oil seal lip, temporarily install the RH and LH steering rack ends sub-assy.
- Using SST, torque the rack guide spring cap.
SST 09631-10021
Torque: 25 N.m (255 kgf.cm, 18 ft.lbf)
- Using SST, loosen the rack guide spring cap.
SST 09631-10021
- Using SST, turn the control valve to the right and left 1 or 2 times.
SST 09616-0011
- Using SST, loosen the rack guide spring cap until the compression spring is not functioning.
SST 09631-10021
- Using SST and a torque wrench, tighten the rack guide spring cap until the preload is within specification.
SST 09616-00011, 09631-10021
Preload (turning):
1.2 - 1.5 N.m (12.2 - 15.3 kgf.cm, 10.6 - 13.3 in .lbf)
- Apply sealant to 2 or 3 threads of the rack guide spring cap nut.
Sealant:
Part No. 08833-00080, THREE BOND 1344, LOCTITE 242 or equivalent
- Temporarily install the rack guide spring cap nut.
- Using SST, and hold the rack guide spring cap and using another SST, tighten the rack guide spring cap nut.
SST 09616-00011, 09922-10010
Torque: 48 N.m (489 kgf.cm, 35 ft.lbf)
NOTE: Use SST 09922-10010 in the direction shown in Fig 53.HINT:
Use a torque wrench with a fulcrum length of 345 mm (13.58 in.).
- Precheck the total preload.
Preload (turning):
1.2 - 1.5 N.m (12.2 - 15.3 kgf.cm, 10.6 - 13.3 in.lbf)
- Remove the RH and LH steering rack ends sub-assy.
- Apply MP grease into the control valve, as shown in Fig 54.
- Wind vinyl tape around the serration part of the control valve.
- Install the dust cover to the control valve housing.
- INSTALL STEERING RACK END SUB-ASSY
- Install a new 2 claw washers, and temporarily install the 2 steering rack ends sub-assy.
HINT:
Align the claws of the claw washer with the power steering rack grooves.
- Using 2 SSTs, install the 2 steering rack ends sub-assy.
SST 09922-10010
Torque: 58.5 N.m (597 kgf.cm, 43 ft.lbf)
NOTE: Use SST 09922-10010 in the direction shown in Fig 56.HINT:
- Using SST, hold the power steering rack and install the steering rack end sub-assy.
- Use a torque wrench with a fulcrum length of 345 mm (13.58 in.).
- Using a brass bar and a hammer, stake the claw washer.
NOTE: Avoid any impact to the power steering rack.
- Install a new 2 claw washers, and temporarily install the 2 steering rack ends sub-assy.
- INSPECT STEERING RACK END SUB-ASSY
- Ensure that the steering rack end sub-assy hole is not clogged with grease.
HINT:
If the hole is clogged, the pressure inside the boot will change after it is assembled and steering wheel is turned.
- Ensure that the steering rack end sub-assy hole is not clogged with grease.
- INSTALL STEERING RACK BOOT NO.2
- Install the steering rack boot No.2.
- INSTALL STEERING RACK BOOT NO.1
HINT:
Remove the steering rack boot No.1 by the same procedures with steering rack boot NO.2.
- INSTALL STEERING RACK BOOT NO.2 CLAMP
- Using SST, tighten the steering rack boot No.2 clamp, as shown in Fig 59.
SST 09521-24010
Clearance: 3.0 mm (0.118 in.) or less
NOTE: Be careful not to damage the steering rack boot No.2.
- Using SST, tighten the steering rack boot No.2 clamp, as shown in Fig 59.
- INSTALL STEERING RACK BOOT NO.1 CLAMP
SST 09521-24010
NOTE: Be careful not to damage the steering rack boot No. 1HINT:
Install the steering rack boot No.1 clamp by the same procedures with steering rack boot No.2 clamp.
- INSTALL STEERING RACK BOOT CLIP
- Using pliers, install the 2 steering rack boot clips.
- INSTALL TIE ROD ASSY LH
- Screw the lock nut and tie rod assy LH onto the steering rack end sub-assy until the matchmarks are aligned.
HINT:
After adjusting toe-in, torque the lock nut.
- Screw the lock nut and tie rod assy LH onto the steering rack end sub-assy until the matchmarks are aligned.
- INSTALL TIE ROD ASSY RH
HINT:
Install the RH side by the same procedures with LH side.
- INSTALL STEERING LEFT TURN PRESSURE TUBE
- Coat 2 new O-rings with power steering fluid and install them to the steering left turn pressure tube.
- Using SST, install the steering left turn pressure tube to the rack & pinion power steering gear assy.
SST 09023-38200
Torque: 11.5 N.m (117 kgf.cm, 8 ft.lbf)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
- Use a torque wrench with a fulcrum length of 345 mm (9.84 in.).
- This torque value is effective in the case that SST is parallel to a torque wrench.
- INSTALL STEERING RIGHT TURN PRESSURE TUBE
- Coat 2 new O-rings with power steering fluid and install them to the steering right turn pressure tube.
- Using SST, install the steering right turn pressure tube to the rack & pinion power steering gear assy.
Torque: 11.5 N.m (11 kgf.cm, 8 ft.lbf)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
- Use a torque wrench with a fulcrum length of 345 mm (11.81 in.).
- This torque value is effective in the case that SST is parallel to a torque wrench.
- INSTALL POWER STEERING RACK HOUSING HEAT INSULATOR
- Install the power steering rack housing heat insulator.
HINT:
Install nut when installing the return clamp.
- Install the power steering rack housing heat insulator.
- INSTALL RACK & PINION POWER STEERING GEAR ASSY
- Install the rack & pinion power steering gear assy with the 2 bolts and 2 nuts.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Torque: 70 N.m (714 kgf.cm, 52 ft.lbf)
- Connect the tube clamp with the bolt.
Torque: 9.8 N.m (100 kgf.cm, 87 in.lbf)
- Install the rack & pinion power steering gear assy with the 2 bolts and 2 nuts.
- CONNECT PRESSURE FEED TUBE ASSY
- Using SST, connect the pressure feed tube assy to the rack & pinion power steering gear assy.
SST 09023-12700
Torque: 22.5 N.m (229 kgf.cm, 17 ft.lbf)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
- Use a torque wrench with a fulcrum length of 300 mm (11.81 in.).
- This torque value is effective in the case that SST is parallel to a torque wrench.
- Using SST, connect the return tube assy to the rack & pinion power steering gear assy.
SST 09023-12700
Torque: 22.5 N.m (229 kgf.cm, 17 ft.lbf)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
- Use a torque wrench with a fulcrum length of 300 mm (11.81 in.).
- This torque value is effective in the case that SST is parallel to a torque wrench.
- Install the return tube assy clamp with the nut.
Torque: 9.8 N.m (100 kgf.cm, 87 in.lbf)
- Using SST, connect the pressure feed tube assy to the rack & pinion power steering gear assy.
- INSTALL FRONT STABILIZER BRACKET NO.1 LH
- Install the front stabilizer bracket No. 1 LH with the 2 bolts.
Torque: 19 N.m (194 kgf.cm, 14 ft.lbf)
- Install the front stabilizer bracket No. 1 LH with the 2 bolts.
- INSTALL FRONT STABILIZER BRACKET NO.1 RH
HINT:
Remove the RH side by the same procedures with LH side.
- CONNECT FRONT STABILIZER LINK ASSY LH
- Connect the front stabilizer link assy LH to the shock absorber assy front LH with the nut.
Torque: 74 N.m (755 kgf.cm, 55 ft.lbf)
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
HINT:
If the ball joint turns together with the nut, use a hexagon wrench (6 mm) to hold the stud.
- Connect the front stabilizer link assy LH to the shock absorber assy front LH with the nut.
- CONNECT FRONT STABILIZER LINK ASSY RH
HINT:
Connect the RH side by the same procedures with LH side.
- CONNECT STEERING INTERMEDIATE SHAFT SUB-ASSY
- Align the matchmarks on the steering intermediate shaft sub-assy and rack & pinion power steering gear assy.
- Install the bolt.
Torque: 35.3 N.m (360 kgf.cm, 26 ft.lbf)
- Tighten the bolt.
Torque: 35.3 N.m (360 kgf.cm, 26 ft.lbf)
- Install the steering column hole cover No.2 to the steering hole cover No.1.
- Connect the clamp to the steering column hole cover No.1 and tighten the bolt.
- CONNECT TIE ROD ASSY LH
- Connect the tie rod assy LH with the nut.
Torque: 49 N.m (500 kgf.cm, 36 ft.lbf)
- Install a new cotter pin.NOTE: If the holes for a new cotter pin are not aligned, tighten the nut further up 60°.
- Connect the tie rod assy LH with the nut.
- CONNECT TIE ROD ASSY RH
HINT:
Install the RH side by the same procedures with LH side.
- INSTALL FRONT WHEEL
Torque: 103 N.m (1,050 kgf.cm, 76 ft.lbf)
- BLEED POWER STEERING FLUID (See ON-VEHICLE INSPECTION )
- CHECK POWER STEERING FLUID LEAKAGE
- INSTALL SPIRAL CABLE SUB-ASSY
(See OVERHAUL )
- CENTER SPIRAL CABLE (See OVERHAUL )
- INSTALL STEERING WHEEL ASSY
(See OVERHAUL )
- INSTALL HORN BUTTON ASSY. See AIR BAG RESTRAINT SYSTEMS
.
- INSPECT AND ADJUST FRONT WHEEL ALIGNMENT (See FRONT WHEEL ALIGNMENT )
- INSPECT STEERING WHEEL CENTER POINT
- INSPECT SRS WARNING LIGHT (See DIAGNOSTIC TESTS )