300Tdi Defender
12
ENGINE
10
REPAIR
17. Slacken belt tensioner securing bolt to finger
tight.
18. Insert 13 mm square drive extension bar in
tensioner plate.
NOTE: Belt tensioning should be carried
out using a dial type torque meter having a
range not exceeding
60 Nm (44 lbf/ft). The
torque meter should be used in the almost vertical
position.
19. Apply a tension of
15 Nm (11 lbf/ft) for a new
belt or
12 Nm (9 lbf/ft) for an original belt. When
tension is correct, tighten clamp bolt.
20. Tighten injection pump gear bolts.
21. Remove pin from injection pump gear.
22. Disengage timing pin from timing slot in flywheel
or ring gear.
23. Rotate crankshaft one and three quarter turns in
a clockwise direction; then continue rotation until
timing pin in timing tool can be engaged with slot
in flywheel.
24. Disengage timing pin.
25. Insert pin from special tool LRT-12-045 in
injection pump gear and through into pump
flange.
26. Slacken injection pump gear retaining bolts.
27. Slacken tensioner and retension belt.
28. Tighten injection pump gear retaining bolts.
29. Remove pin from injection pump gear.
30. Remove timing tool and refit plug.
31. Fit front cover plate using new gaskets.
See Front cover plate and seal
CRANKSHAFT GEAR
Service repair no - 12.65.25
Remove
1. Remove camshaft drive belt.
See Camshaft
drive belt
2. If the crankshaft gear cannot be removed by
hand, use special tool LRT-12-078 with main
body and thrust button from special tool
LRT-12-031, as illustrated . Withdraw gear
complete with ’O’ ring seal.
Refit
3. Lubricate new ’O’ ring seal with petroleum jelly
and slide onto crankshaft, taking care not to
damage seal on woodruff keys.
4. Fit crankshaft gear and tap fully home ensuring
’O’ ring seal is properly seated.
5. Fit camshaft drive belt.
See Camshaft drive
belt