300Tdi Discovery
05
ENGINE TUNING DATA
2
INFORMATION
Distributor
Make/type
Lucas 35DLM8 electronic
........................................................................
Rotation
Clockwise
............................................................................
Air gap
0.20-0.35mm
..............................................................................
Part number
Lucas
Rover
8.13:1, non catalyst
42584A
..........................................................
ERR 4753
9.35:1, non catalyst
42582A
..........................................................
ERR 4754
9.35:1, catalyst
42583A
.................................................................
ERR 4755
Centrifugal Advance
Decelerating check-vacuum hose disconnected
Distributor rpm decelerating speeds
8.13:1 non catalyst
2000
Distributor advance
.................................................................................
5
°
30’ to 8
°
30’
1400 .................................................................................
6
°
18’ to 8
°
30’
800 ...................................................................................
2
°
to 4
°
9.35:1 non catalyst
2200
Distributor advance
.................................................................................
7
°
to 10
°
1400 .................................................................................
7
°
48’ to 10
°
650 ...................................................................................
1
°
to 3
°
9.35:1 catalyst
2200
Distributor advance
.................................................................................
5
°
30’ to 8
°
30’
1400 .................................................................................
6
°
18’ to 8
°
30’
800 ...................................................................................
2
°
to 4
°
Fuel
8.13:1, non catalyst
91 RON minimum unleaded
..........................................................
9.35:1, non catalyst
95 RON minimum unleaded
..........................................................
9.35:1, catalyst
95 RON minimum unleaded
.................................................................
USA-Premium unleaded (PUG)
CLC or AKI 90 octane minimum
.......................................
95 RON minimum
Australian market variations
Fuel
91 RON minimum unleaded
..................................................................................
Compression ratio
8.13:1
............................................................
Spark plug
Champion RN12YC
........................................................................
Spark plug gap
0.84-0.96mm (0.033-0.038 in)
.................................................................
Ignition Timing at 800 rev/min max
(vacuum pipe disconnected)
2
°
BTDC
±
1
°
............................................
Exhaust gas idle CO
1% max (hot)
........................................................
