Workshop Manuals Factory service & repair Land Rover
01 3.5, 3.9 & 4.2 V8 Engine Overhaul Manual - 2nd Edition02 03 04 05 INFORMATION06 07 08 GENERAL DATA09 10 11 12 TORQUE WRENCH SETTINGS13 14 SERVICE TOOLS15 16 17 18 19 DESCRIPTION AND OPERATION20 21 22 23 OVERHAUL
Land Rover V8 Engine 3.5 3.9 4.223 · OVERHAUL
23 · General

Camshaft and tappets - inspection

Make
Land Rover
Model
Engines V8 Engine 3.5 3.9 4.2
Section
Camshaft and tappets - inspection
OVERHAULCamshaft and tappets - inspection
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ENGINE

34

OVERHAUL

3. Remove 2 bolts securing camshaft thrust plate

- if fitted to cylinder block, remove plate.

4. Withdraw camshaft, taking care not to damage

bearings in cylinder block.

Camshaft and tappets - inspection

1. Throughly clean all components.
2. Inspect camshaft bearing journals and lobes

for signs of wear, pitting, scoring and
overheating.

3. Support camshaft front and rear bearings on

vee blocks, and using a DTI, measure
camshaft run-out on centre bearing.
Maximum permitted run-out = 0.05 mm (0.002
in).

4. Inspect camshaft thrust plate - if fitted, for

wear, replace plate if wear is evident.

5. Clean and inspect tappets. Check for an even,

circular wear pattern on the camshaft contact
area. If contact area is pitted or a square wear
pattern has developed, tappet must be
renewed.

6. Inspect tappet body for excessive wear or

scoring. Replace tappet if scoring or deep wear
patterns extend up to oil feed area. Clean and
inspect tappet bores in engine block.

7. Ensure that tappets rotate freely in their

respective bores.

8. Inspect push rod contact area of tappet,

replace tappet if surface is rough or pitted.

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