- Spitfire service information

MK1

MK2

MK3

MK4

1500

Original engine settings;

Engine capacity

1147cc

1147cc

1296cc

1296cc

1493cc

Firing order

1-3-4-2

1-3-4-2

1-3-4-2

1-3-4-2

1-3-4-2

Spark plug gap

0,025"

0,025"

0,025"

0,025"

0,025"

Contact breaker gap

0,020" Delco

0,020" Delco

0,015" Delco

0,016" Delco

0,015" Lucas

Dwell angle

36 degrees

36 degrees

40-42 degrees

38-40 degrees

38-40 degrees

Ignition timing (static)

13 degrees BTDC

13 degrees BTDC

6 degrees BTDC

6 degrees BTDC (to FH25000)
8 degrees BTDC (from FH25001)

10 degrees BTDC

Valve clearance (cold)

0,010"

0,010"

0,010"

0,010"

0,010"

Idle speed (RPM)

700-750

700-750

700-750

700-750

750

Idle mixture (%CO)

2,5-4,5%

2,5-4,5%

2,5-4,5%

2,5-4,5%

2,5-4,5%

Capacities;

Cooling system (inc. heater)

5,6 litre

5,6 litre

4,7 litre

4,7 litre

4,7 litre

Engine & oil sump (inc. filter)

4.1 litre

4.1 litre

4,7 litre

4,7 litre

4,7 litre

Gearbox only

0,9 litre

0,9 litre

0,9 litre

0,9 litre

0,9 litre

Gearbox & overdrive unit

1.4 litre

1.4 litre

1.4 litre

1.5 litre

1.6 litre

Differential

0,6 litre

0,6 litre

0,6 litre

0,6 litre

0,6 litre

Tyre pressure (original 13" wheels & tyres);

Front - PSI (cold)

18 lb

18 lb

18 lb

21 lb

21 lb

Rear - PSI (cold)

24 lb

24 lb

24 lb

26 lb

26 lb