Opel 1930-1959
  Opel 1½ litre `47 (1949) / Opel 2½ litre `47 (1949) / Olypia Rekord 1.5 litre (1953-1954)
Opel 1½ litre `47 (1949)
Engine
Bore & Stroke 80mm x 74mm
Displacement 1488cc
Firing order 1,3,4,2
Oil pressure (hot) 35 lb./sq. in.


Fuel Supply
Carburetor Opel D/D


Valving
Intake tappet clearance 0.008" (hot)
Exhaust tappet clearance 0.008" (hot)
Valve-timing indication Flywheel
Intake valve opens 4° BTDC


Ignition
Breaker gap 0.016" - 0.020"
Plug gap 0.028" - 0.032"
Ignition timing indication Flywheel
Ignition timing 32° BTDC (fully advanced)


Clutch
Clutch type Single Dry Plate
Clutch linings -


Brakes
Brake type Hydraulic 4-wheel
Brake linings -


Wheel Alignment
Toe-In 5/64" to 5⁄32" (2mm to 4mm)
Camber 0° 45'
Caster angle 0°±30'
King pin angle 6° 30'

Opel 2½ litre `47 (1949)
Engine
Bore & Stroke 80mm x 82mm
Displacement 2473cc
Firing order 1,5,3,6,2,4
Oil pressure (hot) 35 lb./sq. in.


Fuel Supply
Carburetor Opel D/D


Valving
Intake tappet clearance 0.008" (hot)
Exhaust tappet clearance 0.012" (hot)
Valve-timing indication Flywheel
Intake valve opens 4° BTDC


Ignition
Breaker gap 0.016" - 0.020"
Plug gap 0.028" - 0.031"
Ignition timing indication Flywheel
Ignition timing 26° BTDC (fully advanced)


Clutch
Clutch type Single Dry Plate
Clutch linings -


Brakes
Brake type Hydraulic 4-wheel
Brake linings -


Wheel Alignment
Toe-In 0" to 1⁄16"
Camber 0° 45'
Caster angle 0°±30'
King pin angle 5°


Opel Olypia Rekord 1.5 litre (1953-1954)
Engine
Bore & Stroke 80mm x 74mm
Displacement 1488cc
Firing order 1,3,4,2
Oil pressure (hot) -


Fuel Supply
Carburetor Opel D/D


Valving
Intake tappet clearance 0.008" (hot)
Exhaust tappet clearance 0.012" (hot)
Valve-timing indication Mark on Flywheel
Intake valve opens 3° BTDC


Ignition
Breaker gap 0.015" - 0.020"
Plug gap 0.035" - 0.039"
Ignition timing indication -
Ignition timing TDC


Clutch
Clutch type Single Dry Plate
Clutch linings Braided and knotted


Brakes
Brake type Hydraulic 4-wheel
Brake linings -


Wheel Alignment
Toe-In 0.04" to 0.12"
Camber 1°±30'
Caster angle 0°±15'
King pin angle 7°±15'