MG 1930-1959 | |
Midget J1 and J2 (1932-34) Engine Bore & Stroke 57mm x 83mm Displacement 847cc Firing order 1,3,4,2 Oil pressure (hot) 40 - 60 lb./sq. in. Fuel Supply Carburetor Twin SU 1" semi-D/D Standard D8 Richer No. 1 Weaker M6 Valving Intake tappet clearance 0.006" (hot) Exhaust tappet clearance 0.008" (hot) Valve-timing indication Camshaft drive wheels Intake valve opens 15° BTDC Ignition Breaker gap 0.015" - 0.018" Plug gap 0.018" Ignition timing indication - Ignition timing TDC Clutch Clutch type Single Dry Plate Clutch linings Special Brakes Brake type Shoe and cam, cable-operated Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 2½° Caster angle 6° King pin angle 6½° Midget Series QA (Supercharged) (1934-35) Engine Bore & Stroke 57mm x 73mm Displacement 746cc Firing order 1,3,4,2 Oil pressure (hot) 60 - 80 lb./sq. in. Fuel Supply Carburetor Vertical 17⁄8 Standard RM2 with Zoller Q4 Supercharger Valving Intake tappet clearance 0.008" (hot) Exhaust tappet clearance 0.014" (hot) Valve-timing indication Camshaft drive wheels Intake valve opens 15° BTDC Ignition Breaker gap 0.015" Plug gap 0.018" Ignition timing indication - Ignition timing TDC Clutch Clutch type Single Dry Plate Clutch linings Special Brakes Brake type Shoe and cam, cable-operated Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 3° Caster angle 8° King pin angle 7° 30' Midget Series PA (1934-36) Engine Bore & Stroke 57mm x 83mm Displacement 847cc Firing order 1,3,4,2 Oil pressure (hot) 60 - 80 lb./sq. in. Fuel Supply Carburetor SU Twin semi-D/D Standard M6 Richer M5 Weaker S Valving Intake tappet clearance 0.006" (hot) Exhaust tappet clearance 0.008" (hot) Valve-timing indication Camshaft drive wheels Intake valve opens 15° BTDC Ignition Breaker gap 0.015" - 0.018" Plug gap 0.015" - 0.018" Ignition timing indication Flywheel Ignition timing 20° BTDC Clutch Clutch type Single Dry Plate Clutch linings Special Brakes Brake type Shoe and cam, cable-operated Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 2° 30' Caster angle 8° 30' King pin angle 6° 30' Midget Series PB (1936) Engine Bore & Stroke 60mm x 83mm Displacement 939cc Firing order 1,3,4,2 Oil pressure (hot) 60 - 80 lb./sq. in. Fuel Supply Carburetor SU Twin semi-D/D Standard M6 Richer M5 Weaker S Valving Intake tappet clearance 0.006" (hot) Exhaust tappet clearance 0.008" (hot) Valve-timing indication Camshaft drive wheels Intake valve opens 15° BTDC Ignition Breaker gap 0.015" - 0.018" Plug gap 0.015" - 0.018" Ignition timing indication Flywheel Ignition timing 20° BTDC Clutch Clutch type Single Dry Plate Clutch linings Special Brakes Brake type Shoe and cam, cable-operated Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 2° 30' Caster angle 8° 30' King pin angle 6° 30' Midget Series TA (1936-39) Engine Bore & Stroke 63.5mm x 102mm Displacement 1292cc Firing order 1,3,4,2 Oil pressure (hot) 40 - 80 lb./sq. in. Fuel Supply Carburetor Twin SU semi-D/D Standard AC Richer MI Weaker S Valving Intake tappet clearance 0.010" (hot) Exhaust tappet clearance 0.015" (hot) Valve-timing indication Timing chain and timing wheels Intake valve opens 11° BTDC Ignition Breaker gap 0.010" - 0.012" Plug gap 0.015" - 0.018" Ignition timing indication Pulley and timing chain case Ignition timing TDC Clutch Clutch type Single Plate Oil Clutch linings Cork Inserts Brakes Brake type Lockheed Hydraulic Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 3° Caster angle 6° King pin angle 7° 30' Midget Series TB (1939) Engine Bore & Stroke 66.5mm x 90mm Displacement 1250cc Firing order 1,3,4,2 Oil pressure (hot) 40 - 70 lb./sq. in. Fuel Supply Carburetor Twin SU semi-D/D Standard ES Richer EM Weaker AP Valving Intake tappet clearance 0.019" (hot) Exhaust tappet clearance 0.019" (hot) Valve-timing indication Timing chain and timing wheels Intake valve opens 11° BTDC Ignition Breaker gap 0.010" - 0.012" Plug gap 0.018" Ignition timing indication Pulley and timing chain case Ignition timing TDC Clutch Clutch type Single Dry Plate Clutch linings Fabric Brakes Brake type Lockheed Hydraulic Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 3° Caster angle 6° King pin angle 7° 30' Midget Series TC (1945-49) Engine Bore & Stroke 66.5mm x 90mm Displacement 1250cc Firing order 1,3,4,2 Oil pressure (hot) 40 - 70 lb./sq. in. Fuel Supply Carburetor Twin SU semi-D/D Standard ES Richer EM Weaker AP Valving Intake tappet clearance 0.019" (hot) Exhaust tappet clearance 0.019" (hot) Valve-timing indication Timing chain and timing wheels Intake valve opens 11° BTDC Ignition Breaker gap 0.010" - 0.012" Plug gap 0.020" - 0.022" Ignition timing indication Pulley and timing chain case Ignition timing TDC Clutch Clutch type Single Dry Plate Clutch linings Fabric Brakes Brake type Lockheed Hydraulic Brake linings Ferodo MR Wheel Alignment Toe-In ¼" Camber 3° Caster angle 6° King pin angle 7° 30' Midget Series TD (1950-53) Engine Bore & Stroke 66.5mm x 90mm Displacement 1250cc Firing order 1,3,4,2 Oil pressure (hot) 40 - 70 lb./sq. in. Fuel Supply Carburetor Twin SU 1¼" semi-D/D Standard ES Richer EM Weaker AP Valving Intake tappet clearance 0.019" (hot) Exhaust tappet clearance 0.019" (hot) Valve-timing indication Timing chain and timing wheels Intake valve opens 11° BTDC Ignition Breaker gap 0.010" - 0.012" (Cars with high-lift cam distributor: 0.014"-0.016" Plug gap 0.020" - 0.022" Ignition timing indication Belt Pulley and timing chain case Ignition timing TDC Clutch Clutch type Single Dry Plate Clutch linings Fabric Brakes Brake type Lockheed Hydraulic 2LS front only Brake linings Ferodo MR19 Wheel Alignment Toe-In nil Camber 0±1° Caster angle 2°±½° King pin angle 9° to 10° 30' Midget Series TF (1953-55) Engine Bore & Stroke 66.5mm x 90mm Displacement 1250cc Firing order 1,3,4,2 Oil pressure (hot) 40 - 70 lb./sq. in. Fuel Supply Carburetor Twin SU 1½" dia. semi-D/D H4 Standard GJ Richer HI Weaker GL Valving Intake tappet clearance 0.012" (hot) Exhaust tappet clearance 0.012" (hot) Valve-timing indication Timing chain and timing wheels Intake valve opens 5° BTDC Ignition Breaker gap 0.014" - 0.016" Plug gap 0.020" - 0.022" Ignition timing indication Belt Pulley and timing chain case Ignition timing TDC Clutch Clutch type Borg & Beck Single Dry Plate (8" dia.) Clutch linings Wound yarn Brakes Brake type Lockheed Hydraulic 2LS front only Brake linings Ferodo DM7 Wheel Alignment Toe-In nil Camber 1° positive to ½° negative on full bump Caster angle 2°±0.5° with side member parallel with road King pin angle 9° to 10° 30' full bump Magnette Series KN and NA (1934-36) Engine Bore & Stroke 57mm x 84mm Displacement 1286cc Firing order 1,4,2,6,3,5 Oil pressure (hot) 60 - 80 lb./sq. in. Fuel Supply Carburetor Twin SU Standard No. 3 Richer H4 Weaker V2 Valving Intake tappet clearance 0.006" (hot) Exhaust tappet clearance 0.008" (hot) Valve-timing indication Camshaft drive wheels Intake valve opens 15° BTDC Ignition Breaker gap 0.015" - 0.018" Plug gap 0.015" - 0.018" Ignition timing indication Flywheel Ignition timing 20° BTDC Clutch Clutch type Single Dry Plate Clutch linings Special, moulded in plate Brakes Brake type Shoe and cam, cable operated Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 3° Caster angle 8° with 2° taper packing plate fitted King pin angle 7° 30' Magna Series L (1933-34) Engine Bore & Stroke 57mm x 71mm Displacement 1087cc Firing order 1,4,2,6,3,5 Oil pressure (hot) 60 - 80 lb./sq. in. Fuel Supply Carburetor Twin SU Standard L Richer R3 Weaker O7 Valving Intake tappet clearance 0.006" (hot) Exhaust tappet clearance 0.008" (hot) Valve-timing indication Camshaft drive wheels Intake valve opens 15° BTDC Ignition Breaker gap 0.015" - 0.018" Plug gap 0.018" Ignition timing indication - Ignition timing TDC Clutch Clutch type Double Dry Plate Clutch linings Ferodo MR Brakes Brake type Shoe and cam, cable operated Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 2° 30' Caster angle 7° King pin angle 6° 30' Magnette K3 Supercharged (1933-34) Engine Bore & Stroke 57mm x 71mm Displacement 1087cc Firing order 1,4,2,6,3,5 Oil pressure (hot) 80 - 100 lb./sq. in. Fuel Supply Carburetor SU 17⁄8" Standard RM1 - RM2 Valving Intake tappet clearance 0.008" (hot) Exhaust tappet clearance 0.014" (hot) Valve-timing indication Camshaft drive wheels Intake valve opens 15° BTDC Ignition Breaker gap 0.015" Plug gap 0.018" Ignition timing indication - Ignition timing TDC (fully retarded) Clutch Clutch type Special, in preselector gearbox Clutch linings - Brakes Brake type Shoe and cam, cable operated Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 3° Caster angle 6° King pin angle 7° 30' Magnette Series ZA (1953-56) Engine Bore & Stroke 73.025mm x 89mm Displacement 1489cc Firing order 1,3,4,2 Oil pressure (hot) 50 - 60 lb./sq. in. Fuel Supply Carburetor Twin SU semi-D/D Standard GM Richer M Weaker GO Valving Intake tappet clearance 0.015" (hot) Exhaust tappet clearance 0.015" (hot) Valve-timing indication Adjoining gearteeth marked Intake valve opens 5° BTDC (TDC at 0.021" clearance) Ignition Breaker gap 0.014" - 0.016" Plug gap 0.019" - 0.021" Ignition timing indication - Ignition timing Static setting 8° BTDC (3⁄8" on pulley OD) Clutch Clutch type Borg & Beck Single Plate Dry Clutch linings Wound yarn Brakes Brake type Lockheed Hyd. 2LS front only Brake linings Ferodo DM12 Wheel Alignment Toe-In nil Camber 1° Caster angle 3° positive King pin angle 6° 1½ litre Series VA (1937-39) Engine Bore & Stroke 69.5mm x 102mm Displacement 1548cc Firing order 1,3,4,2 Oil pressure (hot) 40 - 80 lb./sq. in. Fuel Supply Carburetor Twin SU Standard CO Richer BK Weaker CP Valving Intake tappet clearance 0.010" (hot) Exhaust tappet clearance 0.015" (hot) Valve-timing indication Timing chain and wheels Intake valve opens 11° BTDC Ignition Breaker gap 0.010" - 0.012" Plug gap 0.018" Ignition timing indication Belt pulley and timing chaincase Ignition timing TDC Clutch Clutch type Single Plate (Oil), later, dry Clutch linings Cork inserts; later, fabric Brakes Brake type Lockheed Hydraulic Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 2° Caster angle 4° 30' King pin angle 8° 2 litre Series SA (1936-39) Engine Bore & Stroke 69mm; later 69.5mm x 102mm Displacement 2288cc; later 2322cc Firing order 1,5,3,6,2,4 Oil pressure (hot) 40 - 80 lb./sq. in. Fuel Supply Carburetor Twin SU Standard CH Richer CL Weaker CK Valving Intake tappet clearance 0.015" (hot) Exhaust tappet clearance 0.015" (hot) Valve-timing indication Timing chain and wheels Intake valve opens 11° BTDC Ignition Breaker gap 0.010" - 0.012" Plug gap 0.018" Ignition timing indication Belt pulley and timing chaincase Ignition timing 7° BTDC Clutch Clutch type Single Plate (Oil) Clutch linings Cork inserts Brakes Brake type Lockheed Hydraulic Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 2° Caster angle 4° King pin angle 8° 2½ litre Series WA (1939) Engine Bore & Stroke 73mm x 102mm Displacement 2561cc Firing order 1,5,3,6,2,4 Oil pressure (hot) 40 - 80 lb./sq. in. Fuel Supply Carburetor Twin SU Standard EL Richer EG Weaker AM Valving Intake tappet clearance 0.015" (hot) Exhaust tappet clearance 0.015" (hot) Valve-timing indication Timing chain and wheels Intake valve opens 11° BTDC Ignition Breaker gap 0.010" - 0.012" Plug gap 0.018" Ignition timing indication Belt pulley and timing chaincase Ignition timing 4° BTDC Clutch Clutch type Borg & Beck Single Dry Plate Clutch linings Fabric Brakes Brake type Lockheed Hydraulic Brake linings Ferodo MR Wheel Alignment Toe-In 3⁄16" Camber 2° Caster angle 4° King pin angle 8° 1¼ litre Series Y (1947-50) Engine Bore & Stroke 66.5mm x 90mm Displacement 1250cc Firing order 1,3,4,2 Oil pressure (hot) 40 - 70 lb./sq. in. Fuel Supply Carburetor Single SU Standard FI Richer DK Weaker EF Valving Intake tappet clearance 0.019" (hot) Exhaust tappet clearance 0.019" (hot) Valve-timing indication Timing chain and timing wheels Intake valve opens 11° BTDC Ignition Breaker gap 0.010" - 0.012" Plug gap 0.020" - 0.022" Ignition timing indication Belt pulley and timing chaincase Ignition timing TDC Clutch Clutch type Borg & Beck Single Dry Plate Clutch linings Fabric Brakes Brake type Lockheed Hydraulic Brake linings Ferodo MR19 Wheel Alignment Toe-In nil Camber -1°±1° Caster angle 1°±½° King pin angle 10° to 11½° 1¼ litre Series YB (1951-53) Engine Bore & Stroke 66.5mm x 90mm Displacement 1250cc Firing order 1,3,4,2 Oil pressure (hot) 50 lb./sq. in. Fuel Supply Carburetor Single SU Standard FI Richer DK Weaker EF Valving Intake tappet clearance 0.019" (hot) (Up to and including Engine No. XPAG/SC2/18096, commencing at Engine No. XPAG/SC2/18097, 0.012) Exhaust tappet clearance 0.019" (hot) (Up to and including Engine No. XPAG/SC2/18096, commencing at Engine No. XPAG/SC2/18097, 0.012) Valve-timing indication Timing chain and timing wheels Intake valve opens 5° BTDC Ignition Breaker gap 0.010" - 0.012" (0.014" - 0.016" for cars with high-lift cam distributor) Plug gap 0.020" - 0.022" Ignition timing indication Belt pulley and timing chaincase Ignition timing TDC Clutch Clutch type Borg & Beck Single Dry Plate Clutch linings Wound yarn Brakes Brake type Lockheed Hydraulic Brake linings Ferodo MR19 Wheel Alignment Toe-In nil Camber 0°±1° Caster angle 1°±½° King pin angle 10° ZB Magnette (1956-58) Engine Bore & Stroke 73.025mm x 88.9mm Displacement 1489cc Firing order 1,3,4,2 Oil pressure (hot) 50 lb./sq. in. Fuel Supply Carburetor Twin SU H4 Standard EQ Richer - Weaker M5 Valving Intake tappet clearance 0.015" (hot) Exhaust tappet clearance 0.015" (hot) Valve-timing indication Pulley and longest pointer Intake valve opens 5° BTDC (TDC at 0.021" clearance) Ignition Breaker gap 0.014" - 0.016" Plug gap 0.019" - 0.021" Ignition timing indication Pulley and pointer Ignition timing 4° BTDC Clutch Clutch type Borg & Beck hydraulically operated Clutch linings Wound yarn Brakes Brake type Lockheed drum Brake linings Ferodo DM12 Wheel Alignment Toe-In nil Camber 1° Caster angle 3° King pin angle 6° Magnette III (1959) Engine Bore & Stroke 73.025mm x 88.9mm Displacement 1489cc Firing order 1,3,4,2 Oil pressure (hot) 75 lb./sq. in. Fuel Supply Carburetor Twin SU HD4 Standard FU Richer - Weaker - Valving Intake tappet clearance 0.014" - 0.016" (hot) Exhaust tappet clearance 0.014" - 0.016" (hot) Valve-timing indication Timing gears Intake valve opens TDC at 0.021" clearance Ignition Breaker gap 0.014" - 0.016" Plug gap 0.024" - 0.026" Ignition timing indication Pulley and pointer Ignition timing 8° BTDC Clutch Clutch type Borg & Beck 8" dia. hydraulically operated Clutch linings Wound yarn Brakes Brake type Girling drum Brake linings Ferodo AM4 Wheel Alignment Toe-In 1⁄16" to 1⁄8" Camber ¾° to 1° Caster angle 1½° King pin angle 6½° MGA (1955-59) Engine Bore & Stroke 73.025mm x 88.9mm Displacement 1489cc Firing order 1,3,4,2 Oil pressure (hot) 50 lb./sq. in. Fuel Supply Carburetor Twin SU H4 Standard GS Richer CC Weaker 4 Valving Intake tappet clearance 0.017" (hot) Exhaust tappet clearance 0.017" (hot) Valve-timing indication Pulley and longest pointer, timing wheels Intake valve opens 16° BTDC (TDC at 0.060" clearance Ignition Breaker gap 0.014" - 0.016" Plug gap 0.019" - 0.021" Ignition timing indication Pulley and pointer Ignition timing 7° BTDC Clutch Clutch type Borg & Beck hydraulically operated Clutch linings Wound yarn Brakes Brake type Lockheed drum Brake linings Ferodo DM12 Wheel Alignment Toe-In Nil Camber 1° pos. to ½° neg on full bump Caster angle 4° King pin angle 9° to 10½° on full bump MGA 1600 (1959-60) Engine Bore & Stroke 75.416mm x 88.9mm Displacement 1588cc Firing order 1,3,4,2 Oil pressure (hot) 50 lb./sq. in. Fuel Supply Carburetor Twin SU H4 Standard No. 6 Richer CC Weaker 4 Valving Intake tappet clearance 0.015" (hot) Exhaust tappet clearance 0.015" (hot) Valve-timing indication Pulley and longest pointer, timing wheels Intake valve opens 16° BTDC (TDC at 0.060" clearance Ignition Breaker gap 0.014" - 0.016" Plug gap 0.024" - 0.026" Ignition timing indication Pulley and pointer Ignition timing 6° BTDC Clutch Clutch type Borg & Beck hydraulically operated Clutch linings Wound yarn Brakes Brake type Lockheed disc brakes (front); drums (rear) Brake linings Pads Capex 4; drum lining Don 24 Wheel Alignment Toe-In Nil Camber 1° pos. to ½° neg on full bump Caster angle 4° King pin angle 9° to 10½° on full bump MGA Twin Cam (1959) Engine Bore & Stroke 75.416mm x 88.9mm Displacement 1588cc Firing order 1,3,4,2 Oil pressure (hot) 50 - 60 lb./sq. in. Fuel Supply Carburetor Twin SU H6 Standard OA6 Richer - Weaker - Valving Intake tappet clearance 0.016" - 0.017" (cold) Exhaust tappet clearance 0.015" - 0.017" (cold) Valve-timing indication Gears and camshaft sprockets, crankshaft pulley Intake valve opens 20° BTDC; exhaust closes 20° ATDC; intake and exhaust tappet displacement 0.069" - 0.082" at TDC Ignition Breaker gap 0.014" - 0.016" Plug gap 0.024" - 0.026" Ignition timing indication Pulley and pointer Ignition timing TDC Clutch Clutch type Borg & Beck 8" dia. hydraulically operated Clutch linings Wound yarn (reinforced) Brakes Brake type Dunlop Disc Brake linings VG98 Wheel Alignment Toe-In Parallel Camber 1° Caster angle 4° King pin angle 10° |