BERKELEY 1930-1959
   
Sports, Soft-top 328cc (1957-59)
Engine
Bore & Stroke 58mm x 62mm
Displacement 328cc
Firing order 1,2
Oil pressure (hot) Petrol/oil mixture


Fuel Supply
Carburetor Amal 376/79
Choke No. 4
Main 230"
Slow running 25"
Needle 376/063"


Valving
Intake tappet clearance Two-stroke
Exhaust tappet clearance -
Valve-timing indication -
Intake valve opens -


Ignition
Breaker gap 0.025"
Plug gap 0.018"
Ignition timing indication -
Ignition timing 5⁄32" BTDC


Clutch
Clutch type Albion Multi-plate, 24 inserts
Clutch linings Length 11⁄16"; 17⁄32" top; 13⁄32" bottom; 3⁄16" thick


Brakes
Brake type Girling Hydraulic
Brake linings 623⁄32" x 1¼" x 5⁄32"


Wheel Alignment
Toe-In None
Camber 2½°
Caster angle Nil
King pin angle 6°


Sports Coupe 492cc (1958-59)
Engine
Bore & Stroke 58mm x 62mm
Displacement 492cc
Firing order 1,2,3
Oil pressure (hot) Petrol/oil mixture


Fuel Supply
Carburetor Amal 376/79
Choke No. 4
Main 230"
Slow running 25"
Needle 376/063"


Valving
Intake tappet clearance Two-stroke
Exhaust tappet clearance -
Valve-timing indication -
Intake valve opens -


Ignition
Breaker gap 0.025"
Plug gap 0.018"
Ignition timing indication -
Ignition timing 5⁄32 BTDC


Clutch
Clutch type Albion Multi-plate, 24 inserts
Clutch linings Length 11⁄16"; 17⁄32" top; 13⁄32" bottom; 3⁄16" thick


Brakes
Brake type Girling Hydraulic
Brake linings 623⁄32" x 1¼" x 5⁄32"


Wheel Alignment
Toe-In None
Camber 2½°
Caster angle Nil
King pin angle 6°


B95 (1959)
Engine
Bore & Stroke 70mm x 90mm
Displacement 692cc
Firing order 1,2
Oil pressure (hot) -


Fuel Supply
Carburetor Amal 376/41
Choke 11⁄16"
Main 240"
Slow running 30"
Needle 106"


Valving
Intake tappet clearance Nil (cold)
Exhaust tappet clearance Nil (cold)
Valve-timing indication Cam sprockets and c/shaft sprocket
Intake valve opens 30° BTDC at nil clearance


Ignition
Breaker gap 0.015"
Plug gap 0.018" - 0.025"
Ignition timing indication -
Ignition timing 1⁄32 BTDC (retarded); 3⁄8" - 7⁄16" BTDC (advanced)


Clutch
Clutch type Albion Multi-plate
Clutch linings Ferodo inserts


Brakes
Brake type Girling Hyd.
Brake linings 623⁄32" x 1¼" x 5⁄32"


Wheel Alignment
Toe-In Parallel
Camber 2½°
Caster angle Nil
King pin angle 6°


B105 (1959)
Engine
Bore & Stroke 70mm x 90mm
Displacement 692cc
Firing order 1,2
Oil pressure (hot) -


Fuel Supply
Carburetor Amal 10RR9
Choke 13⁄16"
Main 340"
Needle 109"


Valving
Intake tappet clearance Nil (cold)
Exhaust tappet clearance Nil (cold)
Valve-timing indication Cam sprockets and c/shaft sprocket
Intake valve opens 30° BTDC at nil clearance


Ignition
Breaker gap 0.015"
Plug gap 0.018" - 0.025"
Ignition timing indication -
Ignition timing 1⁄32 BTDC (retarded); 3⁄8" - 7⁄16" BTDC (advanced)


Clutch
Clutch type Albion Multi-plate
Clutch linings Ferodo inserts


Brakes
Brake type Girling Hyd.
Brake linings 623⁄32" x 1¼" x 5⁄32"


Wheel Alignment
Toe-In Parallel
Camber 2½°
Caster angle Nil
King pin angle 6°