LEA-FRANCIS 1930-1959
   
12 HP Standard (1946-48)
Engine
Bore & Stroke 69mm x 100mm
Displacement 1496cc
Firing order 1,3,4,2
Oil pressure (hot) 40 - 60 lb./sq. in. at 30 mph


Fuel Supply
Carburetor SU 1½" dia.
Needle AQ


Valving
Intake tappet clearance 0.004" (hot)
Exhaust tappet clearance 0.006" (hot)
Valve-timing indication Flywheel and timing gears
Intake valve opens 10° BTDC


Ignition
Breaker gap 0.012"
Plug gap 0.025"
Ignition timing indication -
Ignition timing 5° ATDC (retarded)


Clutch
Clutch type Single Dry Plate
Clutch linings Borg & Beck


Brakes
Brake type Girling
Brake linings Ferodo


Wheel Alignment
Toe-In 0" to 1⁄8"
Camber 2½°
Caster angle 3° - 4°
King pin angle 7½°


14 HP Standard (1946-49)
Engine
Bore & Stroke 75mm x 100mm
Displacement 1767cc
Firing order 1,3,4,2
Oil pressure (hot) 40 - 60 lb./sq. in. at 30 mph


Fuel Supply
Carburetor SU 1½" dia.
Needle AQ, EN


Valving
Intake tappet clearance 0.004" (hot)
Exhaust tappet clearance 0.006" (hot)
Valve-timing indication Flywheel and timing gears
Intake valve opens 10° BTDC


Ignition
Breaker gap 0.012"
Plug gap 0.025"
Ignition timing indication -
Ignition timing 5° ATDC (retarded)


Clutch
Clutch type Single Dry Plate
Clutch linings Borg & Beck


Brakes
Brake type Girling
Brake linings Ferodo


Wheel Alignment
Toe-In 0" to 1⁄8"
Camber 2½°
Caster angle 3° - 4°
King pin angle 7½°


14 HP Sports (1946-49)
Engine
Bore & Stroke 75mm x 100mm
Displacement 1767cc
Firing order 1,3,4,2
Oil pressure (hot) 40 - 60 lb./sq. in. at 30 mph


Fuel Supply
Carburetor Twin SU 1¼" dia., H2
Needle EL, AJ or CP


Valving
Intake tappet clearance 0.006" (hot)
Exhaust tappet clearance 0.008" (hot)
Valve-timing indication Flywheel and timing gears
Intake valve opens 18° BTDC


Ignition
Breaker gap 0.012"
Plug gap 0.025"
Ignition timing indication -
Ignition timing TDC (retarded)


Clutch
Clutch type Single Dry Plate
Clutch linings Borg & Beck


Brakes
Brake type Girling
Brake linings Ferodo


Wheel Alignment
Toe-In 0" to 1⁄8"
Camber 2½°
Caster angle 3° - 4°
King pin angle 7½°


14 HP Standard (1950-52)
Engine
Bore & Stroke 75mm x 100mm
Displacement 1767cc
Firing order 1,3,4,2
Oil pressure (hot) 30 - 40 lb./sq. in. at 30 mph


Fuel Supply
Carburetor SU H4 1½" dia.
Needle AQ, EN


Valving
Intake tappet clearance 0.004" (hot)
Exhaust tappet clearance 0.006" (hot)
Valve-timing indication Flywheel and timing gears
Intake valve opens 10° BTDC


Ignition
Breaker gap 0.012"
Plug gap 0.025"
Ignition timing indication -
Ignition timing 5° ATDC (retarded)


Clutch
Clutch type Single Dry Plate
Clutch linings Borg & Beck


Brakes
Brake type Girling
Brake linings -


Wheel Alignment
Toe-In 0" to 1⁄8"
Camber 1½° - 2°
Caster angle 2½°
King pin angle 9°


14 HP 4 Light (1953-54)
Engine
Bore & Stroke 75mm x 100mm
Displacement 1767cc
Firing order 1,3,4,2
Oil pressure (hot) 40 lb./sq. in.


Fuel Supply
Carburetor SU H4 1½" dia.
Needle EN


Valving
Intake tappet clearance 0.004" (hot)
Exhaust tappet clearance 0.006" (hot)
Valve-timing indication Flywheel and timing gears
Intake valve opens 10° BTDC; Exhaust closes 20° ATDC


Ignition
Breaker gap 0.012"
Plug gap 0.025"
Ignition timing indication -
Ignition timing 15° BTDC


Clutch
Clutch type Borg & Beck 9" Single Dry Plate
Clutch linings -


Brakes
Brake type Girling Full Hydraulic
Brake linings Ferodo or Mintex


Wheel Alignment
Toe-In 1⁄16"
Camber 1½°
Caster angle 2½°
King pin angle 9°


18 HP Saloon (1950-52)
Engine
Bore & Stroke 85mm x 110mm
Displacement 2496cc
Firing order 1,3,4,2
Oil pressure (hot) 30 - 40 lb./sq. in. at 30 mph


Fuel Supply
Carburetor SU H6 1½" dia.
Needle SA, W02


Valving
Intake tappet clearance 0.010" (hot)
Exhaust tappet clearance 0.012" (hot)
Valve-timing indication Flywheel and timing gears
Intake valve opens 15° BTDC


Ignition
Breaker gap 0.012"
Plug gap 0.025"
Ignition timing indication -
Ignition timing 5° ATDC (retarded)


Clutch
Clutch type Single Dry Plate
Clutch linings Borg & Beck


Brakes
Brake type Girling
Brake linings


Wheel Alignment
Toe-In o" - 1⁄8"
Camber 1½° - 27°
Caster angle 2½°
King pin angle 9°


18 HP 2½ litre Sports (1950-52)
Engine
Bore & Stroke 85mm x 110mm
Displacement 2496cc
Firing order 1,3,4,2
Oil pressure (hot) 30 - 40 lb./sq. in. at 30 mph


Fuel Supply
Carburetor Twin SU H3
Needle 4, 3, or 2


Valving
Intake tappet clearance 0.010" (hot)
Exhaust tappet clearance 0.012" (hot)
Valve-timing indication Flywheel and timing gears
Intake valve opens 15° BTDC


Ignition
Breaker gap 0.012"
Plug gap 0.025"
Ignition timing indication -
Ignition timing TDC (retarded)


Clutch
Clutch type Single Dry Plate
Clutch linings Borg & Beck


Brakes
Brake type Girling
Brake linings


Wheel Alignment
Toe-In o" - 1⁄8"
Camber 1½° - 27°
Caster angle 2½°
King pin angle 9°


18 HP 6 Light (1953-54)
Engine
Bore & Stroke 85mm x 110mm
Displacement 2496cc
Firing order 1,3,4,2
Oil pressure (hot) 40 lb./sq. in.


Fuel Supply
Carburetor SU H6 1¾" dia.
Needle SA, WO3


Valving
Intake tappet clearance 0.010" (hot)
Exhaust tappet clearance 0.012" (hot)
Valve-timing indication
Intake valve opens 15° BTDC; Exhaust closes 15° ATDC


Ignition
Breaker gap 0.012"
Plug gap 0.025"
Ignition timing indication -
Ignition timing TDC


Clutch
Clutch type Borg & Beck 9" Single Dry Plate
Clutch linings -


Brakes
Brake type Girling Full Hydraulic
Brake linings Ferodo or Mintex


Wheel Alignment
Toe-In 1⁄16"
Camber 1½°
Caster angle 2½°
King pin angle 9°


2½ Sports (1953-54)
Engine
Bore & Stroke 85mm x 110mm
Displacement 2496cc
Firing order 1,3,4,2
Oil pressure (hot) 40 lb./sq. in.


Fuel Supply
Carburetor SU Twin H4 1½" dia.
Needle AQ


Valving
Intake tappet clearance 0.006" (hot)
Exhaust tappet clearance 0.008" (hot)
Valve-timing indication
Intake valve opens 20° BTDC; Exhaust closes 25° ATDC


Ignition
Breaker gap 0.012"
Plug gap 0.025"
Ignition timing indication -
Ignition timing TDC


Clutch
Clutch type Borg & Beck 9" Single Dry Plate
Clutch linings -


Brakes
Brake type Girling Full Hydraulic
Brake linings Ferodo or Mintex


Wheel Alignment
Toe-In 1⁄16"
Camber 1½°
Caster angle 2½°
King pin angle 9°