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

Oil pump - inspection

Make
Land Rover
Model
Engines V8 Engine 3.5 3.9 4.2
Section
Oil pump - inspection
OVERHAULOil pump - inspection
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ENGINE

OVERHAUL

29

Oil pressure relief valve - remove

1. Remove circlip.
2. Remove relief valve plug.
3. Remove and discard ’O’ ring from plug.
4. Remove relief valve spring and piston.
5. Check piston and bore of relief valve in oil

pump body for scoring and corrosion.

NOTE: Light corrosion may be removed
using grade 600 emery cloth soaked in oil.

Oil pump - inspection

1. Thoroughly clean oil pump drive gear, cover

plate, rotors and housing. Remove all traces of
sealant from cover plate securing screws and
bolt - if fitted; ensure tapped holes in timing
cover are clean and dry.

2. Check mating surfaces of cover plate, rotors

and housing for scoring.

3. Assemble rotors and oil pump drive gear in

housing ensuring that reference marks are
aligned.

4. Using feeler gauges, check clearance between

teeth of inner and outer rotors:
Maximum clearance = 0.25 mm (0.01 in)

5. Remove oil pump drive gear, check depth of

any wear steps on gear teeth:
Wear step maximum depth = 0.15 mm (0.006
in)

Parts & tools for this job Staging For Land Rover Engines

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