ZJ12

XJ12 5.3/XJS, Double Six

5343 cc
1975-81
Engine Code V12

Ignition Data
Ignition system type: El-i
Ignition coil make/type: Lu/22C12
Supply voltage: n / a
Primary resistance: 0.9-1.1 Ohms
Secondary resistance: n / a Ohms
Distributor make/type: Lu/36DE12
Contact breaker gap/air: n / a mm
Dwell angle: n / a Deg
Ignition Timing - unleaded: n / a Deg eng/rpm (without vacuum)
Ignition Timing - leaded: 10/900 Deg eng/rpm (without vacuum)
Timing mark location: Pulley
No 1 plug location: Pulley
Firing Order: <1-12-5-8-3-10-6-7-2-11-4-9>
Spark plug make: Champion
Spark plug type: N10Y
Electrode gap: 0.9 mm

Fuel System
Fuel type: L
Fuel pump type/pressure: n / a bar
Engine idle speed: 750 rpm
Fast idle speed: n / a rpm
CO level at idle speed: 3.5 Max [XJS=1.0-2.0] Vol %

Engine Data
Valve clearance - inlet: 0.30-0.35 c mm (cold)
Valve clearance - exhaust: 0.30-0.35 c mm (cold)
Compression pressure: 11.6 bar
Oil pressure: 4.9/3000 bar/eng/rpm
Radiator pressure cap: 0.9 KRB250 bar/type
Drive belt 1 - size: 9.5x875 KDB875 mm/type
Drive belt 2 - size: 12.5x1075 KEB107 mm/type

Electrical System
Alternator output: 66/1500 Amps/eng/rpm
Regulated output: 13.6-14.4 Volts
Battery: 12/70 V/Ah
Starter motor make/type: Lu/M45G (PE)

Other Data
Clutch operation type: Hyd
Clutch adjustment: S/Adj. mm
Cambelt failure: n / a
Cambelt Part Number: n / a
Tyre pressures: 1.9(26)f 2.1(30)r bar (psi)

XJ12/D. Six, Vin No-481680-

5345 cc
1990-
Engine Code V12

Ignition Data
Ignition system type: El-i
Ignition coil make/type: Duc/2526019
Supply voltage: 6.3 + Volts with ballast resistor
Primary resistance: 0.9-1.1 Ohms
Secondary resistance: n / a Ohms
Distributor make/type: Lu/36 DM12
Contact breaker gap/air: 0.5-0.6 mm
Dwell angle: n / a Deg
Ignition Timing - unleaded: 18/3000 Deg eng/rpm (without vacuum)
Ignition Timing - leaded: 18/3000 Deg eng/rpm (without vacuum)
Timing mark location: Pulley
No 1 plug location: Pulley
Firing Order: <1-12-5-8-3-10-6-7-2-11-4-9>
Spark plug make: NGK
Spark plug type: BR7EF
Electrode gap: 0.64 mm

Fuel System
Fuel type: L/U +Cat
Fuel pump type/pressure: Elec/2.5 bar
Engine idle speed: 750 25 rpm
Fast idle speed: n / a rpm
CO level at idle speed: 1.0-2.0 [0.5 Max] Vol %

Engine Data
Valve clearance - inlet: 0.26 c mm (cold)
Valve clearance - exhaust: 0.31 c mm (cold)
Compression pressure: n / a bar
Oil pressure: 1.38/725 bar/eng/rpm
Radiator pressure cap: 1.0 bar/type
Drive belt 1 - size: 9.5x875 KDB875 mm/type
Drive belt 2 - size: 12.5x1075 KEB107 mm/type

Electrical System
Alternator output: 115/6000 Amps/eng/rpm
Regulated output: 13.8-15.0 Volts
Battery: 12/68 V/Ah
Starter motor make/type: Lu/M80R

Other Data
Clutch operation type: Hyd
Clutch adjustment: S/Adj. mm
Cambelt failure: n / a
Cambelt Part Number: n / a
Tyre pressures: 2.5(36)f 2.3(33)r bar (psi)

XJ12-HE,

5343 cc
1983-89
Engine Code V12

Ignition Data
Ignition system type: El-i
Ignition coil make/type: Lu/35C6
Supply voltage: n / a
Primary resistance: 0.9-1.1 Ohms
Secondary resistance: n / a Ohms
Distributor make/type: Lu/36DM12
Contact breaker gap/air: 0.20-0.35 mm
Dwell angle: n / a Deg
Ignition Timing - unleaded: n / a Deg eng/rpm (without vacuum)
Ignition Timing - leaded: 18/3000 Deg eng/rpm (without vacuum)
Timing mark location: Pulley
No 1 plug location: Pulley
Firing Order: <1-12-5-8-3-10-6-7-2-11-4-9>
Spark plug make: Champion
Spark plug type: RS5C
Electrode gap: 0.64 mm

Fuel System
Fuel type: L
Fuel pump type/pressure: Elec/2.5 bar
Engine idle speed: 750 rpm
Fast idle speed: n / a rpm
CO level at idle speed: 1.0-2.0 Vol %

Engine Data
Valve clearance - inlet: 0.30-0.35 c mm (cold)
Valve clearance - exhaust: 0.30-0.35 c mm (cold)
Compression pressure: 11.6 bar
Oil pressure: 4.9/3000 bar/eng/rpm
Radiator pressure cap: 0.9 KRB250 bar/type
Drive belt 1 - size: 9.5x875 KDB875 mm/type
Drive belt 2 - size: 12.5x1075 KEB107 mm/type

Electrical System
Alternator output: 66/1500 Amps/eng/rpm
Regulated output: 13.6-14.4 Volts
Battery: 12/65 V/Ah
Starter motor make/type: Lu/M45G

Other Data
Clutch operation type: Hyd
Clutch adjustment: S/Adj. mm
Cambelt failure: n / a
Cambelt Part Number: n / a
Tyre pressures: 2.2(31)f 2.2(31)r bar (psi)