Range Rover. Manual — part 77
BMW DIESEL
1
ADJUSTMENT
FUEL INJECTION PUMP TIMING - CHECK AND
ADJUST
Service repair no - 19.30.01
Check
1. Disconnect battery negative lead.
2. Remove intake manifold.
See MANIFOLD AND
EXHAUST SYSTEM, Repair.
3. Remove cooling fan cowl.
See COOLING
SYSTEM, Repair.
4. Loosen high pressure pipe unions at injectors
and Fuel Injection Pump (FIP) using
LRT-12-117.
CAUTION: Hold delivery valves against
rotation as pipe unions are loosened.
5. Remove oil filler cap.
6. Observe No. 1 camshaft lobe. Turn engine
clockwise until lobe points vertically upwards.
NOTE: This indicates that the engine is
approximately 90
°
Before Top Dead Centre
(BTDC) with No. 1 cylinder on its
compression stroke.
7. Remove bolt from timing access hole in FIP.
Collect sealing washer.
19
FUEL SYSTEM
NEW RANGE ROVER
2
ADJUSTMENT
8. Fit injection pump timing gauge holder
LRT-12-121 into access hole.
9. Fit dial gauge and preload by approximately 2
mm. Secure dial gauge in holder.
10. Remove plastic plug from flywheel timing pin
access hole. Insert timing pin LRT-12-108.
11. Rotate engine slowly clockwise until dial gauge
needle reaches its lowest point. Zero gauge.
12. Continue turning crankshaft in a clockwise
direction until timing pin locates into flywheel.
Check reading:
Engines with less than
20,000 km = 0.95 mm
±
0.02 mm (0.4
±
0.001
in)
Engines with more than
20,000 km = 0.90 mm
±
0.02 mm (0.035
±
0.001 in)
If in tolerance, continue at Assemble.
If out of tolerance, carry out adjustment as follows:
Adjust
13. Slacken 2 flange nuts and 1 support bolt
securing FIP.
CAUTION: Slacken flange nuts by
minimum amount. Timing chain tension
will deflect pump if bolts are over loose,
leading to false readings.
14. Rotate pump on mounting until correct reading is
achieved.
NOTE: Ensure final movement of pump
head is made towards the engine.
CAUTION: If final movement of pump head
is away from engine, backlash will be left
in pump mechanism, leading to false
readings.
15. Tighten pump flange nuts to
22 Nm (16 lbf.ft)
16. Remove flywheel timing pin.
17. Repeat from operation 6 to verify timing.
18. Refit plastic plug to flywheel timing pin hole.
19. Tighten rear support bolt to
22 Nm (16 lbf.ft)
BMW DIESEL
3
ADJUSTMENT
Assemble
20. Remove dial gauge and holder.
21. Fit bolt to FIP timing access hole, use a new
sealing washer if necessary. Tighten to
25 Nm
(18 lbf.ft)
22. Using LRT-12-117, tighten high pressure pipe
unions on injection pump to
20 Nm (15 lbf.ft).
Do not tighten pipes at injectors.
CAUTION: Hold delivery valves against
rotation as pipe unions are tightened.
23. Fit oil filler cap.
24. Fit cooling fan cowl.
See COOLING SYSTEM,
Repair.
25. Fit intake manifold.
See MANIFOLD AND
EXHAUST SYSTEM, Repair.
26. Reconnect battery negative lead.
27. With assistance, crank engine. As fuel emerges
at injector connections, secure each pipe union
using tool LRT-12-117. Tighten to
20 Nm (15
lbf.ft)
WARNING: Engine will start during high
pressure pipe bleeding procedure.
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