Adjusting the Line and Rest Pressures (B70)
Adjusting the line and rest pressuresB70
Remove or fit shims in the line pressure regulator if and as necessary.
The line and rest pressures are affected equally by the adjustment. Both pressures are increased by adding shims and reduced by removing shims.
Shims are available in the following thicknesses:
Thickness Pressure variation
1975-1977 0.1 mm (0.004 in) 6 kPa (1 psi)
0.5 mm (0.020 in) 30 kPa (4.3 psi)
1978- 0.1 mm (0.004 in) 15 kPa (2.1 psi)
0.15 mm (0.006 in) 22 kPa (3.2 psi)
0.6 mm (0.024 in) 90 kPa (13 psi)
Engine type Line pressure Rest pressure
E/F 450-530 kPa 150-240 kPa
(65-77 psi) (22-35 psi)
Turbo 1981 520-580 kPa 150-240 kPa
(75-89 psi) (22-35 psi)
Turbo 1982- 520-580 kPa 240-320 kPa
(75-84 psi) (35-46 psi)