Discovery II
AUTOMATIC GEARBOX - ZF4HP22 - 24
44-38
REPAIRS
Housing - torque converter
$% 44.17.01
Remove
1. Remove torque converter oil seal.
- 24, REPAIRS, Torque converter and oil
seal.
2. Remove 18 bolts and plain washers securing
torque converter and intermediate plate to
gearbox casing. Note the position of the 4 bolts
that have sealant applied to the bolt threads
and 6 bolts, (outer ring), which are shorter.
3. Hold input shaft in position and carefully
remove the converter housing and intermediate
plate from gearbox casing.
4. Note the position of the Torrington race on the
forward clutch hub and the thrust washer which
will stay attached to the intermediate plate by
fluid adhesion.
5. Remove and discard intermediate plate gasket.
6. Remove thrust washer from intermediate plate.
7. Separate converter housing from intermediate
plate.
Refit
1. Clean converter housing, intermediate plate
and gearbox casing mating faces.
2. Clean bolts and plain washers and sealant from
4 bolt threads.
3. Apply Petroleum Jelly to new gasket and
position on gearbox casing.
4. Apply Petroleum Jelly to thrust washer and
Torrington race.
5. Correctly position Torrington race and thrust
washer to forward clutch hub.
6. Position intermediate plate and converter
housing to gearbox casing.
7. Apply sealant, Part No. STC 50553 to 4 longer
bolt threads and fit bolts in the positions shown.
8. Fit remaining bolts and tighten progressively in
a diagonal sequence to 46 Nm (34 lbf.ft).
9. Place LRT-44-003/1 into pump housing, tighten
screws to secure LRT-44-003/1 to input shaft.
10. Clamp a suitable steel base to converter
housing flange.
11. Mount DTI gauge and position gauge probe
onto LRT-44-003/1 and zero gauge.
M44 1343
M44 1345
M44 1343
M44 1358
LRT-44-003/1
