300Tdi Discovery
12
ENGINE
2
REPAIR
DRIVE BELT RENEW
Service repair no - 86.10.03
NOTE: If cast lines on tensioner arm and
tensioner spring case are aligned, a new
drive belt must be fitted.
Remove
1. Remove fan cowl upper.
2. Apply ring spanner to tensioner pulley retaining
bolt.
3. Turn spanner to release pulley tension from belt.
4. Detach belt from pulley.
5. Release tensioner.
6. Complete removal of belt. Mark direction on belt
if refitting.
Refit
7. Reverse removal procedure.
COMPRESSOR DRIVE BELT
Service repair no - 86.10.02
Remove
1. Remove auxiliary drive belt.
See Drive Belt
Renew
2. Remove compressor shield.
3. Loosen tensioner retaining bolts.
4. Remove compressor drive belt. Mark direction
on belt if refitting.
Refit
5. Fit compressor drive belt.
6. Fit torque meter to centre of tensioner and apply
and hold a torque of
35 Nm. Tighten 3 tensioner
retaining bolts.
7. Rotate crankshaft 2 full turns.
8. Reapply and hold a torque of
35 Nm to
tensioner, then fully loosen and retighten 3
tensioner retaining screws to
25 Nm.