Disassembly and assembly of gearboxes R150F and R151F [Toyota Land Cruiser J70]

Note:

• This section contains only technical data and design differences.
• The procedures for disassembling, inspecting and assembling the R150F and R151F transmissions are similar to the corresponding procedures for the G52 transmission, taking into account the design differences.
• Please refer to the assembly drawings.

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Primary shaft

1. Checking the gap between the synchronizer ring and the gear.

Normal clearance is 0.8-1.6 mm

Minimum gap - 0.6 mm

2. Selecting the retaining ring when replacing the primary shaft bearing.

Tags	Thickness, mm
A	2,10-2,15
IN	2,15-2,20
WITH	2,20 - 2,25
D	2,25 - 2,30
E	2,30 - 2,35
F	2,35 - 2,40
G	2,40 - 2,45

Secondary shaft

1. Checking the axial clearance of the secondary shaft gears.

First gear pinion:

• Normal clearance is 0.10 - 0.45 mm
• Maximum gap - 0.55 mm

Second and third gears:

• Normal clearance is 0.10 - 0.25 mm
• Maximum gap - 0.30 mm

2. Checking the radial clearance of the secondary shaft gears.

Normal clearance:

• 1st gear - 0.020 - 0.073 mm
• 2nd and 3rd gears - 0.015- 0.068 mm
• Maximum gap - 0.16 mm

3. Checking the thickness of the secondary shaft edges.

Minimum thickness - 4.70 mm

4. Checking the outer diameter of the secondary shaft journals.

Minimum diameter:

• 1st gear - 38.860 mm
• 2nd gear - 46.860 mm
• 3rd gear - 37, 860 mm

5. Checking the secondary shaft runout.



Maximum runout - 0.06 mm

6. Checking the gap between the synchronizer ring and the secondary shaft gear.

Normal clearance is 0.8-1.6 mm

Minimum gap - 0.6 mm

7. Checking the gap between the synchronizer sleeve and the gear shift fork.

Maximum gap - 1.0 mm

8. When assembling the secondary shaft:

a) Selection of the retaining ring (No. 1).

Label	Thickness, mm
A	1,80-1,85
IN	1,85-1,90
WITH	1,90-1,95
D	1,95-2,00
E	2,00 - 2,05
F	2,05-2,10
G	2,10-2,15

b) Checking the axial clearance of the third gear.

Normal clearance is 0.10 - 0.25 mm

c) Selection of the retaining ring (No. 2).

Label	Thickness, mm
A	2,30 - 2,35
IN	2,35 - 2,40
WITH	2,40 - 2,45
D	2,45-2,50
E	2,50-2,55
F	2,55-2,60
G	2,60-2,65

d) Checking the axial clearance of the first and second gears after installing the bearing.

Normal clearance:

• 1st gear - 0.10 - 0.45 mm
• 2nd gear - 0.10-0.25 mm

Intermediate shaft and reverse intermediate gear

1. Checking the radial clearance of the fifth gear.

Normal clearance is 0.015 - 0.068 mm

Maximum gap - 0.16 mm

2. Checking the outer diameter of the intermediate shaft journal.

Minimum diameter - 27.860 mm

3. Checking the gap between the synchronizer ring and the gear.

Normal clearance is 0.8 - 1.6 mm

Minimum gap - 0.6 mm

4. Checking the gap between the synchronizer sleeve and the gear shift fork.

Maximum gap - 1.0 mm

5. Checking the clearance between the intermediate gear of the reverse gear and the pin of the reverse gear engagement linkage.

Normal clearance is 0.05 - 0.25 mm

Maximum gap - 0.5 mm

6. Checking the radial clearance of the reverse gear intermediate gear.

Normal clearance is 0.040 - 0.082 mm

Maximum gap - 0.13 mm

7. Selecting the retaining ring when replacing the front bearing of the intermediate shaft.

Label	Thickness, mm
A	2,00-2,05
IN	2,05-2,10
WITH	2,10-2,15
D	2,15-2,20
E	2,20-2,25
F	2,25-2,30

Primary shaft bearing holder

When replacing the primary shaft bearing holder seal.

Pressing depth of the seal is 12.2 - 13.2 mm

Gearbox assembly

1. Installation of parts on the intermediate support.



2. Applying sealant.

Note: Remove old sealant. Avoid contact with oil on contact surfaces.

a) When installing the gearbox housing.



b) When installing the primary shaft bearing holder.





c) Installing the transfer case adapter.



3. Connecting the gear shift lever shaft.