300Tdi Discovery
19
FUEL SYSTEM
8
REPAIR
All glow plugs
5. Remove terminal nut from glow plug, disconnect
wire from glow plug terminal.
6. Remove glow plug.
Refit
7. Clean glow plug and seating.
8. Coat threads of glow plug with suitable anti-seize
compound operational to a temperature of
1000
°
C.
9. Fit glow plug. Tighten to
23 Nm.
10. Connect wire to glow plug terminal and secure
with nut.
NOTE: Feed wire must be connected to
No. 4 glow plug terminal.
11.
No. 3 glow plug: Lubricate new ’O’ ring with
engine oil and fit to Hummel valve. Fit valve and
secure with bolt. Tighten to
15 Nm.
No. 1 glow plug - air conditioning models
12. Position compressor to front cover, fit bolts.
Tighten to
25 Nm.
13. Fit drive belt to compressor pulley and adjust
tension.
See ENGINE, Repair, Drive Belt
Renew
All models
14. Reconnect battery negative lead.
EGR VALVE
Service repair no - 19.45.01
Remove
1. Disconnect multiplug from EGR valve.
2. Disconnect vacuum pipe from EGR valve.
3. Remove 2 Allen screws securing EGR valve to
exhaust manifold.
4. Remove 2 bolts securing hose to EGR valve.
5. Remove EGR valve and discard gaskets.
Refit
6. Clean mating faces of EGR valve and exhaust
manifold.
7. Reverse removal procedure. Tighten bolts to
25
Nm.