Range Rover P38
BMW DIESEL
41
REPAIR
7. Make suitable alignment marks between inner
and outer rotors and pump housing.
8. Clean rotors and recess in pump housing, fit
rotors ensuring square identification marks face
towards cover plate and reference marks are
aligned.
9. Insert flanged bush into inner rotor with flange on
rotor side of pump.
10. Using feeler gauges, check clearance between
outer rotor to pump body and inner rotor to
flanged bush and compare with figures given:
Outer rotor to pump housing = 0.4 mm (0.02 in) -
maximum
Inner rotor to flanged bush = 0.065 mm (0.003
in) - maximum
11. Remove flanged bush, position a straight edge
across both rotors and the pump body.
12. Using feeler gauges inserted between straight
edge and on each side of inner and outer rotors,
measure axial clearance between rotors and
pump body and compare with figures given:
Outer rotor to pump body axial clearance =
0.070 mm (0.004 in) - maximum
Inner rotor to pump body axial clearance = 0.065
mm (0.003 in) - maximum
13. If any of the clearances obtained exceed figures
given, pump assembly must be replaced.