Disassembly (Sienna)
NOTE:
When removing oil seals, be sure to note direction seals are facing for reinstallation in same direction.
- Secure rack and pinion housing in soft-jaw vise (DO NOT over-tighten vise). Remove 2 turn pressure tubes and "O" rings. See Fig 1.
- Place reference marks on tie rod end and rack end. Loosen lock nut. Remove screw and loosen clamp. Mark and remove left and right side rack boots.
- Unstake claw washer on both rack ends. See Fig 2. Holding steering rack, remove rack ends. Mark left and right sides for proper reinstallation. Remove washers.
- Remove rack guide spring cap lock nut. See Fig 1. Remove rack guide spring cap, spring and rack guide sub-assembly.
- Remove rack housing cap from lower side of housing. Hold shaft from rotating, and remove self-locking nut from top end of control valve shaft. Remove dust cover from upper side of housing. See Fig 1.
- Place reference marks on valve housing and rack housing. Remove mounting bolts, valve housing and gasket. Tape serrated end of valve shaft. Invert housing on protected blocks and press control valve assembly, with oil seal, out of housing. Remove oil seal from control valve assembly.
- Place reference marks on No. 2 mounting bracket and rack housing. Pry bracket clamp apart, and remove bracket and grommet.
- Remove cylinder end stopper, turning clockwise, until wire end is visible in service hole. Turn cylinder end stopper counterclockwise and remove wire. See Fig 2 and Fig 3
.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
- Using brass bar and hammer, tap rack and bushing out of housing. Remove bushing from rack. Remove "O" ring from bushing. See Fig 2. Press oil seal from rack housing.