Land Rover Engine 2.0 Litre T Series. Manual — part 10
ENGINE
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25
6. Noting fitted position of M10 x 20 bolt A,
remove 9 bolts securing oil pump to cylinder
block.
7. Slide oil pump off crankshaft, discard gasket.
8. Carefully prise crankshaft front oil seal out of
oil pump body; discard oil seal.
Oil pump - inspection
NOTE: The oil pump is serviced as an
assembly. The following checks can be
carried out to determine serviceability.
1. Make suitable alignment marks between oil
pump body and cover plate.
2. Remove 4 Torx screws securing cover plate,
remove plate.
3. Using a felt tipped pen, make suitable
alignment marks between inner and outer
rotors and oil pump body.
4. Remove inner and outer rotors.
5. Check rotors and oil pump body for signs of
wear and scoring.
6. Fit rotors ensuring that reference marks are
aligned and chamfered side of outer rotor
carrying a square identification mark is facing
away from backplate side of pump body.
7. Check outer rotor to body clearance:
Clearance A = 0.05 to 0.10 mm
ENGINE
26
OVERHAUL
8. Check inner rotor lobe tip clearance:
Clearance B = 0.025 to 0.12 mm
9. Check outer rotor end float:
End float C = 0.03 to 0.08 mm
Renew oil pump assembly if clearances are
excessive or scoring of components is evident.
Oil pressure relief valve
1. Remove and discard split pin securing relief
valve cap.
2. Remove relief valve cap, spring and plunger,
discard relief valve cap ’O’ ring.
3. Check that plunger is not scored and slides
freely in bore.
4. Check that bore is free from corrosion.
NOTE: Light corrosion may be removed
using grade 600 emery cloth soaked in
engine oil.
5. Check free length of spring:
Spring free length = 38.9 mm
Renew relief valve as an assembly if scoring of
plunger is evident or free length of spring is less
than specified.
ENGINE
OVERHAUL
27
Oil pump - assembling
1. Clean relief valve components and ensure bore
in oil pump body is clean.
2. Using suitable solvent, gasket removal spray
and plastic scraper, remove all traces of
sealant and gasket from oil pump and cover
plate.
3. Remove all traces of Loctite from Torx screws
and tapped holes in oil pump body; ensure
holes are clean and dry.
CAUTION: Do not use a tap.
Oil pressure relief valve
4. Smear a new ’O’ ring with engine oil and fit to
relief valve cap.
5. Lubricate spring, plunger and bore in oil pump
body with engine oil.
6. Fit plunger, spring and relief valve cap; secure
assembly with a new split pin.
Oil pump
7. Lubricate rotors with engine oil.
8. Fit rotors ensuring that reference marks are
aligned and chamfered side of outer rotor
carrying a square identification mark is facing
away from backplate side of pump body.
9. Apply a 1 mm bead of Loctite 573 to cover
plate as shown.
10. Apply Loctite 222 to threads of Torx screws.
11. Fit cover plate ensuring reference marks are
correctly aligned.
12. Fit Torx screws and tighten in diagonal
sequence to 6 Nm.
13. Check that pump rotates freely.
ENGINE
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Oil pump - refit
1. Using gasket removal spray and plastic
scraper, remove all traces of gasket from
cylinder block.
2. Using suitable solvent, remove sealant from
front main bearing cap,
3. Ensure 2 oil pump locating dowels are in
position.
4. Remove all traces of Loctite from threads of oil
pump securing bolts and bolt holes. Ensure
bolt holes are clean and dry.
5. Clean timing belt lower cover backplate.
6. Position a new gasket to oil pump body.
7. Apply a 1.0 mm bead of sealant from kit, Part
Number GUG 705548GM to vertical joint of
front main bearing cap.
NOTE: Main bearing caps fitted to later
engines have a groove machined along
either side of sump mating face, do not fill
the side grooves with sealant until sump is fitted.
8. Insert oil seal protector sleeve LRT-12-070
into oil pump inner rotor; this will assist in
locating oil pump inner rotor on Woodruff key.
9. Align Woodruff key slot in oil pump inner rotor
with crankshaft Woodruff key.
10. Slide oil pump over crankshaft ensuring
Woodruff key is located in keyway in inner
rotor.
11. Locate oil pump on dowels; oil seal protector
sleeve LRT-12-070 will be displaced as pump
is fitted.
12. Apply Loctite 222 to threads of oil pump
securing bolts.
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