
Gearbox | ||||
Reduction ratios - inclusive of output shaft/layshaft reduction of 1.944 : 1 (35/18T) | ||||
1st | 4.497 : 1 | |||
2nd | 2.959 : 1 | |||
3rd | 2.304 : 1 | |||
4th | 1.879 : 1 | |||
5th | 1.666 : 1 | |||
Layshaft and output shaft standard endfloat | 0,050 - 0,150 mm (0.0019 - 0.0059 in) | |||
Input shaft preload: | ||||
Tolerance | 0,030 - 0.080 mm (0.0012 - 0.0032 in) | |||
Approximate equivalents of preload values, expressed in frition values: | ||||
0,030 mm (0.0012 in) preload | 0,19 ± 0,02 Nm (0.14 ± 0.01 lbf ft) | |||
0,055 mm (0.0022 in) preload | 0,34 ± 0,02 Nm (0.25 ± 0.01 lbf ft) | |||
0,080 mm (0.0032 in) preload | 0,50 ± 0,02 Nm (0.37 ± 0.01 lbf ft) | |||
Gearbox lubrication | ||||
Recommended oil | Good quality hypoid gear oil of API class GL-5 or to specification MIL-L-2105 B or C | |||
Viscosity: | ||||
Above 5°C (41°F) | SAE 90 | |||
Below 5°C (41°F) | SAE 80 | |||
Alternatively | SAE 80W90 | |||
Capacity | 850 ± 50 cc (1.50 ± 0.09 Imp pint, 0.90 ± 0.05 US qt) | |||
Torque wrench settings | ||||
75 models | 100 models | |||
Component | Nm | lbf ft | Nm | lbf ft |
Selector lever/gearchange pedal shaft grub screw | 17 ± 2 | 12.5 ± 1.5 | N/Av | N/Av |
Neutral detent assembly plug | 13 ± 2 | 9.5 ± 1.5 | 25 - 29 | 18.5 - 21.5 |
Front cover retaining screws | 9 ± 1 | 6.5 ± 0.5 | 9 - 11 | 6.5 - 8 |
Gearbox/bellhousing retaining screws | 16 ± 1 | 12.5 ± 0.5 | 16 ± 1 | 12.5 ± 0.5 |
Engine and transmission unit/frame mountings: | ||||
Early (1984, 1985) 100 models | N/App | N/App | 32 | 23.5 |
Late (1986 on) 100 & 75 models | 40,5 ± 4 | 30 ± 3 | 40,5 ± 4 | 30 ± 3 |
Filler and drain plugs | 20 ± 3 | 15 ± 2 | N/Av | N/Av |
Next Section: General description