Discovery 2. Manual — part 439

ENGINE - V8

OVERHAUL 12-2-49

Seal - crankshaft - rear - automatic
models

$% 12.21.20.01

Disassembly

1. Remove CKP sensor.

+

ENGINE MANAGEMENT SYSTEM -

V8, REPAIRS, Sensor - crankshaft position
(CKP).

2. Remove 4 bolts securing drive plate clamp ring

and remove ring.

3. Remove drive plate from hub.
4. Remove 6 Allen screws securing hub, remove

hub and collect spacer.

5. Carefully remove oil seal from cylinder block to

avoid damage to seal location or running
surface on crankshaft.

Reassembly

1. Ensure both seal location and running surface

on crankshaft are clean.

2. Fit seal guide LRT-12-095 to crankshaft.
3. Fit new seal squarely onto crankshaft and

remove guide.

CAUTION: Oil seal must be fitted dry.

4. Fit seal into location using tools LRT-12-091

and LRT-99-003.

ENGINE - V8

12-2-50 OVERHAUL

5. Clean hub and mating face, spacer and clamp

ring.

6. Clean drive plate and ensure free from cracks

and distortion.

7. Fit spacer and hub to crankshaft, tighten Allen

screws to 78 Nm (58 lbf.ft).

8. Fit drive plate and clamp ring, tighten bolts to

45 Nm (35 lbf.ft).

9. Fit CKP sensor.

+

ENGINE MANAGEMENT SYSTEM -

V8, REPAIRS, Sensor - crankshaft position
(CKP).

Seal - crankshaft - rear - manual models

$% 12.21.20.01

Disassembly

1. Restrain flywheel.
2. Working in sequence, loosen and remove 6

bolts securing clutch cover to flywheel.

3. Remove clutch cover.
4. Remove clutch plate.
5. Remove CKP sensor.

+

ENGINE MANAGEMENT SYSTEM -

V8, REPAIRS, Sensor - crankshaft position
(CKP).

6. Remove 6 bolts securing flywheel.
7. Remove flywheel.

ENGINE - V8

OVERHAUL 12-2-51

8. Carefully remove oil seal from cylinder block to

avoid damage to seal location or running
surface on crankshaft.

Reassembly

1. Ensure both seal location and running surface

on crankshaft are clean.

2. Fit tool LRT-12-095 to crankshaft.
3. Fit new seal squarely onto crankshaft and

guide.

CAUTION: Oil seal must be fitted dry.

4. Fit seal into location using tools LRT-12-091

and LRT-99-003.

5. Clean mating faces of flywheel and crankshaft,

dowel and dowel hole.

6. Fit flywheel to crankshaft and, working in a

diagonal sequence, tighten bolts to 78 Nm (58
lbf.ft).

7. Fit CKP sensor.

+

ENGINE MANAGEMENT SYSTEM -

V8, REPAIRS, Sensor - crankshaft position
(CKP).

8. Clean clutch cover, drive plate and spigot bush

in end of crankshaft.

9. Renew worn components as necessary.

10. If refitting existing drive plate, apply Molycote

FB 108 to splines.

11. Fit LRT-12-001 alignment tool to spigot bearing

in crankshaft.

12. Fit drive plate onto alignment tool, ensure side

marked 'flywheel side' is against flywheel.

13. Fit clutch cover and locate on dowels.
14. Fit clutch cover bolts and tighten in diagonal

sequence to 40 Nm (30 lbf.ft).

ENGINE - V8

12-2-52 OVERHAUL

Bearing - spigot - crankshaft

$% 12.21.45.01

Disassembly

1. Remove 6 bolts securing clutch cover.
2. Remove clutch cover.
3. Tap a thread in spigot bush to accommodate a

suitable impulse extractor.

4. Fit extractor to bush.

5. Remove bush from crankshaft.

Reassembly

1. Clean bush register in rear of crankshaft.
2. Using a suitable drift, fit new bush to crankshaft

so that it is flush with or up to a maximum of 1.6
mm (0.06 in) below the end of the crankshaft.

3. Ream spigot bush to 19.117 + 0.025

−

0.00 mm

(0.75 + 0.001

−

0.00 in) .

4. Remove all traces of swarf on completion.
5. Clean mating faces of flywheel and crankshaft,

dowel and dowel hole.

6. Fit clutch cover to flywheel and tighten bolts by

diagonal slection to 40 Nm (30 lbf.ft).