Land Rover engine 300 TDi. Manual — part 12
ENGINE
28
OVERHAUL
6. From all of the readings obtained, determine
highest protrusion figure and select the
appropriate cylinder head gasket.
Protrusion 0.50 to 0.60 mm - select gasket with
1 identification hole.
Protrusion 0.61 to 0.70 mm - select gasket with
2 identification holes.
Protrusion 0.71 to 0.80 mm - select gasket with
3 identification holes.
Protrusion 0.81 to 0.90 mm - select gasket with
0 identification holes.
NOTE: Identification holes are located on
the edge of the gasket.
7. Remove DTI.
8. Rotate crankshaft in a clockwise direction until
all pistons are half-way up cylinder bores.
Cylinder head - refit
1. Ensure that mating faces of cylinder head and
block are clean and dry and that 2 locating
dowels are fitted in cylinder block.
2. Lubricate threads of new cylinder head bolts
with engine oil.
3. Check that cylinder head bolt holes in cylinder
block are clean and dry.
4. Rotate crankshaft in a clockwise direction until
pistons are half-way up cylinder bores.
5. Position the selected cylinder head gasket on
cylinder block ensuring that word "TOP" is
facing upwards.
6. Using assistance, fit cylinder head ensuring
that it is located on dowels.
ENGINE
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29
7. Fit cylinder head bolts of the correct length in
positions shown.
CAUTION: Do not drop bolts into cylinder
block.
8. Tighten bolts until bolt heads just contact
cylinder head.
9. Using sequence shown, tighten cylinder head
bolts to 40 Nm.
ENGINE
30
OVERHAUL
10. Assemble degree plate LRT-12-007 to a
torque wrench or extension bar.
11. Make a suitable pointer from welding rod and
attach it to the rocker shaft pedestal bolt hole
adjacent to number 1 cylinder head bolt.
12. Using sequence shown, tighten cylinder head
bolts a further 60
°
.
NOTE: Re-position the pointer as
necessary to enable degree of tightening
to be measured.
13. Using sequence shown, tighten each bolt a
further 60
°
.
CAUTION: Bolts must be tightened in
sequence 60
°
at a time - never 120
°
in one
operation.
14. Using sequence shown, tighten bolts numbers
1, 2, 7, 8, 9, 10, 15, 16, 17 and 18 a further
20
°
.
15. Remove pointer.
16. Position a new thermostat housing gasket to
cylinder head.
17. Fit thermostat housing, fit bolts and tighten to
25 Nm.
18. Position thermostat in housing.
19. Fit coolant outlet elbow, fit bolts and tighten to
25 Nm.
20. Position engine front lifting bracket to cylinder
head, fit 2 bolts and tighten to 25 Nm.
21. Fit fuel injectors.
22. Fit glow plugs.
23. Fit rocker shaft assembly.
ENGINE
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31
TIMING BELT REAR COVER AND OIL PUMP
Timing belt rear cover - remove
1. Remove timing belt, tensioner and gears.
2. Remove fuel injection pump.
3. Remove sump and oil pick-up pipe.
4. Using sequence shown, progressively slacken
then remove bolts securing timing belt rear
cover; remove cover.
5. Remove and discard gasket.
6. Remove and discard camshaft and crankshaft
front oil seals.
Oil pump and oil pressure relief valve - remove
Oil pump
1. Make suitable alignment marks between oil
pump and timing belt rear cover.
2. Progressively slacken then remove 7 screws
securing oil pump cover.
3. Remove oil pump cover.
4. Make suitable alignment marks between oil
pump inner and outer rotors and outer rotor
and timing belt rear cover.
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