300Tdi Discovery
ZF
21
REPAIR
REPLACING PUMP
Service repair no - 44.32.01
1. Remove gearbox and transfer box assembly.
See LT230T Transfer Gearbox
2. Place gearbox on bench. Remove torque
converter using torque converter handles
18G1501, taking care not to damage torque
converter/oil pump housing oil seal.
3. Remove twelve bolts (inner ring pattern).
4. Remove bell housing and pump assembly from
gearbox case, discard gasket.
5. Remove eight bolts on rear of pump.
6. Screw in two bolts,diagonally opposite each
other, tap lightly using a soft headed mallet to
free pump assembly from intermediate plate.
7. Fit new pump assembly, aligning dowel with hole
in intermediate plate, press pump housing home.
8. Secure pump housing to intermediate plate
using eight hexagonal bolts. Tighten to
10 Nm.
9. Place bell housing and intermediate plate
assembly on bench, front face up. Using oil
pump rotation sleeve LST111, check that pump
gears rotate freely.
10. Before replacing intermediate plate/bell housing
assembly check that thrust washer and axial
cage are seated on A clutch housing.
11. Place new gasket and disc washer onto bell
housing and intermediate plate assembly using
a Petroleum Jelly.
12. Fit bell housing and intermediate plate assembly,
tighten twelve bolts to
46 Nm.
