ENGINE
CAMSHAFT AND TAPPETS
Camshaft and tappets - remove
1.
2.
3.
Remove rocker shaft assemblies.
Remove pushrods and store in fitted order.
Remove timing chain and gears.
6.
Withdraw camshaft, taking care not to damage
bearings in cylinder block.
Camshaft and tappets - inspection
4.
Remove tappets and retain with their
respective pushrods.
1.
2.
Throughly clean all components.
Inspect camshaft bearing journals and lobes
for signs of wear, pitting, scoring and
overheating.
NOTE: If tappets cannot be removed due
to damaged camshaft contact area,
proceed as follows:
3.
4.
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.
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.
5.
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.
Ensure that tappets rotate freely in their
respective bores.
6.
7.
Inspect pushrod contact area of tappet, replace
tappet if surface is rough or pitted.
5.
Lift tappets in pairs to the point where
damaged face is about to enter tappet bore
and fit rubber bands to retain tappets. Repeat
until all tappets are retained clear of camshaft
lobes. The tappets can then be withdrawn out
the bottom of their bores when the sump is
removed.
20
OVERHAUL
| Categories | Land Rover, Land Rover Discovery |
|---|---|
| Tags | Land Rover |
| Model Year | 1996 |
| Download File |
|
| Document Type | Workshop Manual |
| Language | English |
| Product Name | 3.5, 3.9 and 4.2 Litre V8 engines |
| Product Brand | Land Rover |
| Engine Manufacturer | Rover Group |
| Engine Motor Size | 3.5L, 3.9L, 4.2 Litre |
| Document File Type | |
| Publisher | landrover.com |
| Wikipedia's Page | http://en.wikipedia.org/wiki/Land_Rover |
| Copyright | Attribution Non-commercial |
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