RILEY 1930-1959
	9 HP (1937) Engine Bore & Stroke 60.3mm x 95.2mm Displacement 1089cc Firing order 1,2,4,3 Oil pressure (hot) 40 - 50 lb./sq. in. at 40 mph Fuel Supply Carburetor Twin Solex Choke 20 Main 100 Compensating 230 Slow Running 60 or 50 Valving Intake tappet clearance 0.003" (hot) Exhaust tappet clearance 0.004" (hot) Valve-timing indication Timing gears Intake valve opens TDC Ignition Breaker gap Scintilla mag.: 0.012" - 0.016" Coil ignition: 0.010"-0.012" Plug gap 0.018" - 0.022" Ignition timing indication - Ignition timing TDC (fully retarded) Clutch Clutch type Single Plate Automatic Clutch linings Ferodo Brakes Brake type Girling 11" Brake linings Girling Wheel Alignment Toe-In 1⁄8" Camber 1¾° Caster angle 3¼° King pin angle 8° 9 HP (1938) Engine Bore & Stroke 60.3mm x 95.2mm Displacement 1089cc Firing order 1,2,4,3 Oil pressure (hot) 40 - 50 lb./sq. in. at 40 mph Fuel Supply Carburetor Twin Zenith Choke 20 Main 65 or 55 Compensating 65 Slow Running 45 Valving Intake tappet clearance 0.003" (hot) Exhaust tappet clearance 0.004" (hot) Valve-timing indication Timing gears Intake valve opens TDC Ignition Breaker gap Scintilla mag.: 0.012" - 0.016" Coil ignition: 0.010"-0.012" Plug gap 0.018" - 0.022" Ignition timing indication - Ignition timing TDC (fully retarded) Clutch Clutch type Single Plate Automatic Clutch linings Ferodo Brakes Brake type Girling 11" Brake linings Girling Wheel Alignment Toe-In 1⁄8" Camber 1¾° Caster angle 3¼° King pin angle 8° 12 HP (1939-40) Engine Bore & Stroke 69mm x 100mm Displacement 1496cc Firing order 1,2,4,3 Oil pressure (hot) 40 - 45 lb./sq. in. at 40 mph Fuel Supply Carburetor SU Choke No. 3 Standard SV needle Sprite series CC Valving Intake tappet clearance 0.004" (hot) Exhaust tappet clearance 0.004" (hot) Valve-timing indication - Intake valve opens TDC Ignition Breaker gap 0.010"-0.012" Plug gap 0.030" Ignition timing indication - Ignition timing 5° ATDC (fully retarded) Clutch Clutch type Borg & Beck Single Dry Plate Clutch linings Special Brakes Brake type Girling Mechanical Brake linings Ferodo Wheel Alignment Toe-In 1⁄8" Camber 1¾° Caster angle 3¼° King pin angle 8° 1½ litre (1938) Engine Bore & Stroke 69mm x 100mm Displacement 1496cc Firing order 1,2,4,3 Oil pressure (hot) 40 - 45 lb./sq. in. at 40 mph Fuel Supply Carburetor Zenith 36 VEH Choke 27 Main 110 Compensating 85/90 Economy 150 Slow Running 65 Valving Intake tappet clearance 0.004" (hot) Exhaust tappet clearance 0.004" (hot) Valve-timing indication - Intake valve opens TDC Ignition Breaker gap 0.010"-0.012" Plug gap 0.018" - 0.022" Ignition timing indication - Ignition timing 5° ATDC (fully retarded) Clutch Clutch type Borg & Beck Single Dry Plate Clutch linings Special Brakes Brake type Girling Mechanical Brake linings Ferodo Wheel Alignment Toe-In 1⁄8" Camber 1¾° Caster angle 3¼° King pin angle 8° 1½ litre (1945-50) Engine Bore & Stroke 69mm x 100mm Displacement 1496cc Firing order 1,2,4,3 Oil pressure (hot) 40 - 45 lb./sq. in. at 40 mph Fuel Supply Carburetor SU horizontal H2 No. 3 needle 90 jet Weak V2 needle Rich BY needle Valving Intake tappet clearance 0.003" (hot) Exhaust tappet clearance 0.004" (hot) Valve-timing indication Timing gears Intake valve opens 9° BTDC Ignition Breaker gap 0.010"-0.012" Plug gap 0.025" Ignition timing indication - Ignition timing 8° BTDC Clutch Clutch type Borg & Beck Single Dry Plate Clutch linings Borg & Beck RYZ Brakes Brake type Girling Hydro-Mechanical Brake linings Ferodo Wheel Alignment Toe-In Parallel Camber 1° Caster angle 3° King pin angle 11° 1½ litre (1951-55) Engine Bore & Stroke 69mm x 100mm Displacement 1496cc Firing order 1,2,4,3 Oil pressure (hot) 30 lb./sq. in. at 40 mph Fuel Supply Carburetor SU horizontal H2 Needle No. 3 Valving Intake tappet clearance 0.003" (0.015" from engine No. 10311) (hot) Exhaust tappet clearance 0.004" (0.015" from engine No. 10311) (hot) Valve-timing indication Chain wheels Intake valve opens 9° BTDC Ignition Breaker gap 0.010"-0.012" (later models: 0.014" - 0.016") Plug gap 0.025" Ignition timing indication - Ignition timing 8° BTDC Clutch Clutch type Borg & Beck Single Dry Plate Clutch linings Borg & Beck RYZ Brakes Brake type Girling Hydro-Mechanical Brake linings Don Wheel Alignment Toe-In Parallel Camber 1° Caster angle 3° King pin angle 11° 2½ litre (1945-50) Engine Bore & Stroke 80.3mm x 120mm Displacement 2432cc Firing order 1,2,4,3 Oil pressure (hot) 40 - 45 lb./sq. in. at 50 mph Fuel Supply Carburetor SU horizontal H4 (2) Needle No. 69 (1949-50: EE needles) Jet 90 Valving Intake tappet clearance 0.003" (hot) Exhaust tappet clearance 0.004" (hot) Valve-timing indication Chain wheels Intake valve opens 17° BTDC Ignition Breaker gap 0.010"-0.012" (later models: 0.014" - 0.016") Plug gap 0.025" Ignition timing indication - Ignition timing 8° BTDC Clutch Clutch type Borg & Beck Single Dry Plate Clutch linings Borg & Beck RYZ Brakes Brake type Girling Hydro-Mechanical Brake linings Ferodo Wheel Alignment Toe-In Parallel Camber 1° Caster angle 3° King pin angle 11° 2½ litre (1951-53) Engine Bore & Stroke 80.5mm x 120mm Displacement 2443cc Firing order 1,2,4,3 Oil pressure (hot) 40 - 45 lb./sq. in. at 50 mph Fuel Supply Carburetor SU horizontal H4 (2) Needle EE Valving Intake tappet clearance 0.003" (0.015" from engine No. RMB1) (hot) Exhaust tappet clearance 0.004" (0.015" from engine No. RMB1) (hot) Valve-timing indication Chain wheels Intake valve opens 12° BTDC (Later models 12°) Ignition Breaker gap 0.010"-0.012" (later models: 0.014" - 0.016") Plug gap 0.025" Ignition timing indication - Ignition timing 4° - 8° BTDC Clutch Clutch type Borg & Beck Single Dry Plate Clutch linings Borg & Beck RYZ Brakes Brake type Girling Hydro-Mechanical Brake linings Mintex M14 Wheel Alignment Toe-In Parallel Camber 1° Caster angle 3° King pin angle 11° Pathfinder (1953-57) Engine Bore & Stroke 80.5mm x 120mm Displacement 2443cc Firing order 1,2,4,3 Oil pressure (hot) 40 lb./sq. in. Fuel Supply Carburetor Twin SU H4 Jet 0.090" Needle EE Rich CY Weak EM Valving Intake tappet clearance 0.011" (hot) Exhaust tappet clearance 0.011" (hot) Valve-timing indication Crankshaft keyway vertical and marks on chain Intake valve opens 12° BTDC (tappets at 0.023") Ignition Breaker gap 0.014" - 0.016" Plug gap 0.025" Ignition timing indication - Ignition timing 4° - 8° BTDC Clutch Clutch type Borg & Beck 10" A6-G Clutch linings MY3D Brakes Brake type Girling Hydraulic Servo Brake linings Mintex M11 (Late models: DM52) Wheel Alignment Toe-In Nil Camber 1° Caster angle 3° King pin angle 6° One-Point-Five (1957-58) 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 Needle AD Choke 1½ Main 0.090" Valving Intake tappet clearance 0.015" (hot) Exhaust tappet clearance 0.015" (hot) Valve-timing indication Pointer and pulley, Timing wheels Intake valve opens 5° BTDC (TDC at 0.021" clearance) Ignition Breaker gap 0.014" - 0.016" Plug gap 0.025" Ignition timing indication Pointer and pulley Ignition timing TDC Clutch Clutch type Borg & Beck 8" A6-G Clutch linings Wound yarn Brakes Brake type Girling Hydraulic Brake linings AM2 Wheel Alignment Toe-In Parallel Camber ¾° Caster angle 3° King pin angle 9° One-Point-Five (1959) 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 Needle AD Choke 1½ Main 0.090" Valving Intake tappet clearance 0.015" (hot) Exhaust tappet clearance 0.015" (hot) Valve-timing indication Pointer and pulley, Timing wheels Intake valve opens 5° BTDC (TDC at 0.021" clearance) Ignition Breaker gap 0.014" - 0.016" Plug gap 0.024" - 0.026" Ignition timing indication Pointer and pulley Ignition timing 6° BTDC Clutch Clutch type Borg & Beck 8" dia. Clutch linings Wound yarn Brakes Brake type Girling Drum 2LS (front); single (rear) Brake linings AM2 Wheel Alignment Toe-In Parallel Camber ¾° Caster angle 3° King pin angle 9° Two-Point-Six (1957-59) Engine Bore & Stroke 79.375mm x 88.9mm Displacement 2639cc Firing order 1,5,3,6,2,4 Oil pressure (hot) 50 lb./sq. in. Fuel Supply Carburetor Twin SU H4 Choke 1½ Main 0.090" Standard needle AJ Rich needle FR Weak needle V2 Valving Intake tappet clearance 0.012" (hot) Exhaust tappet clearance 0.012" (hot) Valve-timing indication Dimples on timing wheels and bright links on chain Intake valve opens 5° BTDC (TDC at 0.024" clearance) (1959: 0.030" clearance) Ignition Breaker gap 0.014" - 0.016" Plug gap 0.025" Ignition timing indication Pointer and pulley Ignition timing 4° - 5° BTDC Clutch Clutch type Borg & Beck 9" dia. A6-G Clutch linings Wound yarn Brakes Brake type Lockheed Hydraulic Brake linings DON R7 Wheel Alignment Toe-In Parallel Camber ¾° Caster angle 3° King pin angle 6° 4/Sixty-Eight (1959) Engine Bore & Stroke 73.025mm x 88.9mm Displacement 2639cc Firing order 1489 Oil pressure (hot) 75 lb./sq. in. Fuel Supply Carburetor Twin SU HD4 Choke 1½ Main 0.090" Standard needle FU Valving Intake tappet clearance 0.014" - 0.015" (hot) Exhaust tappet clearance 0.014" - 0.015" (hot) Valve-timing indication Timing wheels Intake valve opens 5° BTDC (TDC at 0.021" clearance) Ignition Breaker gap 0.014" - 0.016" Plug gap 0.024" - 0.026" Ignition timing indication Pointer and pulley Ignition timing 8° BTDC Clutch Clutch type Borg & Beck 8" dia. Clutch linings Wound yarn Brakes Brake type Girling drum 2LS (front); single (rear) Brake linings Ferodo AM4 Wheel Alignment Toe-In 1⁄16" to 1⁄8" Camber ¾° to 1° Caster angle 1½° King pin angle 6½°