Contents: Examination ↓ Replacement ↓ Engine Mount Passenger Side (Right) ↓ Gearbox support in block with the…↓ Front engine mount ↓ Rear engine mount ↓ Engine support thrust ↓
1. Powertrain mounts rarely require attention, but broken, damaged or worn mounts should be replaced immediately as this can place additional stress on engine and transmission components and cause damage or wear.
Examination
2. When performing the check, the engine should be slightly raised (or a gearbox in a block with a driving axle), to relieve the supports.
3. Raise the vehicle and place reliable supports underneath it. Remove the lower engine guard (see paragraph 6) and place the jack under the oil pan. Place a large block of wood between the jack and the oil pan, then gently lift the engine, but only enough to take the weight off the mounts. Do not place the block of wood under the oil drain plug.
Caution: Do not work under the engine when it is supported only by a jack.
Caution: If the vehicle is equipped with electronically controlled air suspension, turn off the ride height control switch.
4. Check the bearings for cracks in the rubber, hardening of the rubber and its separation from the bushing in the center of the bearing.
5. Check for relative movement between the support plates and the engine or frame. Use a large screwdriver or pry bar when attempting to move the supports.
6. If there is movement, lower the engine and tighten the fasteners.
Replacement
7. Disconnect the ground cable from the battery (see paragraph 1 of chapter 5). Raise the vehicle and place reliable supports underneath it, if you have not done so already. Support the engine as described in step 3.
Caution: If the vehicle is equipped with electronically controlled air suspension, turn off the ride height control switch.
Note: If several supports need to be replaced at once, replace them only one at a time, making sure to tighten each one to the stop. Do not remove all supports at once.
Engine Mount Passenger Side (Right)
8. Working under the vehicle, unscrew the nuts securing the support to the upper and lower brackets (Fig. 17.8).
Fig. 17.8. Nuts (A) and bolts (B) of the right support of the power unit (there are bolts under the covers)
9. Remove the bolts securing the support to the frame, then lift the engine enough to remove the supports.
Note: To raise the engine enough to allow enough clearance to remove the passenger side engine mount, you will need to loosen the nuts on the other engine mounts on the subframe.
10. Installation is performed in the reverse order of removal. Apply thread locking compound to the bolts, screw in the bolts and tighten them securely
Gearbox support in block with the driving axle on the driver's side (left)
11. Working under the vehicle, unscrew the nut securing the support to the upper and lower brackets.
The original is published on the website ToyotaMAN
12. Loosen the bolts securing the support to the frame, then lift the gearbox in the block with the drive axle enough to remove the support.
Note: To raise the engine enough to allow enough clearance to remove the driver's side transaxle mount, you will need to loosen the nuts on the other transaxle mounts on the subframe.
13. Installation is performed in the reverse order of removal. Apply thread locking compound to the bolts, screw in the bolts and tighten them securely.
Front engine mount
14. Working under the vehicle, loosen the nut securing the engine support bracket to the support.
15. Remove the bolts securing the support to the frame, then lift the engine enough to remove the support.
Note: To raise the engine enough to allow enough clearance to remove the driver's side front engine mount, you will need to loosen the retaining nuts on the other engine mounts on the subframe.
16. Installation is performed in the reverse order of removal. Apply thread locking compound to the bolts, screw in the bolts and tighten them securely.
Rear engine mount
17. Working under the vehicle, loosen the nut securing the engine support bracket to the support.
18. Remove the bolts securing the support to the frame, then lift the engine enough to remove the support.
19. Installation is performed in the reverse order of removal. Apply thread locking compound to the bolts, screw in the bolts and tighten them securely.
Engine support thrust
20. While working in the engine compartment, unscrew the bolts securing the engine support jet rod and its bracket (fig. 17.20).
Fig. 17.20. Location of engine support thrust mounting bolts
21. Installation is performed in the reverse order of removal. Apply thread locking compound to the bolts, unscrew the bolts and tighten them securely.