Volvo 1930-1959
  Volvo 121 (B16A Engine) (1958-1960) / Volvo 122S (B16B Engine) (1958-1960) / Volvo PV444 (B16A Engine) (1958-1960) / Volvo PV544 (B16B Engine) (1958-60)
Volvo 121 (B16A Engine) (1958-1960) GHJkL - 101000
Engine
Bore & Stroke - 79.37 mm x 80 mm
Displacement - 1580 cc
Firing Order - 1-3-4-2
Oil Pressure (Hot) - 49.7 lb./sq. in.
Fuel Supply
Carburetor - Down draft
Choke - 34 mm
Main - 0.97 mm
Compensating - 0.97 mm
Slow Running - 0.50 mm
Needle - 1.75 mm
Valving
Intake Tappet Clearance - 0.40 mm (Hot)
Exhaust Tappet Clearance - 0.40 mm (Hot)
Valve-Timing Indication - Marking in gear and flywheel
Intake Valve Opens - 10 ATDC 1.1 mm Clearance
Ignition
Breaker gap - 0.4 - 0.5 mm
Plug gap - 0.7 mm
Ignition Timing Indication - Gradation in the flywheel
Ignition Timing - 2 to 4 BTDC
Clutch
Clutch Type - Single Dry Plate
Clutch Linings - 8" x 1⁄8"
Brakes
Brake Type - Hydraulic (Later models: Hydraulic duo servo)
Brake linings - Front . 2" x 3⁄16" x 10¼" / Rear . 2" x 3⁄16" x 77⁄8"
Later models:
- Rear lining, front, 2" x ¼" to 3⁄16" x 10.8".
- Front lining, front, 2" x 3⁄16" x 10.8".
- Rear linings, 2" x 3⁄16" x 9.8".
- Front linings, ?.
Wheel Alignment
Toe-In - 0 to 4 mm
Camber - 0 to +½
Caster Angle - -½ to +½ (From chassis No. 2611: 0 to 1)
King pin angle - 8

Volvo 122S (B16B Engine) (1958-1960) GHJkL - 777000
Engine
Bore & Stroke - 79.37 mm x 80 mm
Displacement - 1580 cc
Firing Order - 1-3-4-2
Oil Pressure (Hot) - 35-50 lb./sq. in. at 2000 rpm
Fuel Supply
Carburetor - Twin SU H4
Choke - ? mm
Main - ? mm
Compensating - ? mm
Slow Running - ? mm
Needle - GT
Valving
Intake Tappet Clearance - 0.50 mm (Hot)
Exhaust Tappet Clearance - 0.50 mm (Hot)
Valve-Timing Indication - At front and flywheel
Intake Valve Opens - ? ...TDC 1.15 mm Clearance
Ignition
Breaker gap - 0.4 - 0.5 mm
Plug gap - 0.7 - 0.8 mm
Ignition Timing Indication - Flywheel
Ignition Timing - 4 to 6 BTDC
Clutch
Clutch Type - ? (Borg & Beck)
Clutch Linings - ? (8" . 57.4 sq. in.)
Brakes
Brake Type - Hydraulic duo servo
Brake linings - Front . 2" x 3⁄16" x 10.8" / Rear . 2" x 3⁄16" x 9.8"
(Rear lining, front wheel, thick: ¼" - 3⁄16")
Wheel Alignment
Toe-In - 0 to 4 mm
Camber - 0 to +½
Caster Angle - 0 to 1
King pin angle - 8

Volvo PV444 (B16A Engine) (1958-1960) GHJkL - 777000
Engine
Bore & Stroke - 79.37 mm x 80 mm
Displacement - 1580 cc
Firing Order - 1-3-4-2
Oil Pressure (Hot) - 49.7 lb./sq. in.
Fuel Supply
Carburetor - Down Draft
Choke - 34 mm
Main - 0.97 mm
Compensating - 0.97 mm
Slow Running - 0.5 mm
Needle - 1.75 mm
Valving
Intake Tappet Clearance - 0.40 mm (Hot)
Exhaust Tappet Clearance - 0.40 mm (Hot)
Valve-Timing Indication - Marking in gear and flywheel
Intake Valve Opens - 10 ATDC 1.1 mm Clearance
Ignition
Breaker gap - 0.4 - 0.5 mm
Plug gap - 0.7 mm
Ignition Timing Indication - Gradation in the flywheel
Ignition Timing - 2 to 4 BTDC
Clutch
Clutch Type - Single Dry Plate
Clutch Linings - 8" x 1⁄8"
Brakes
Brake Type - Hydraulic (Later models: Hydraulic duo servo)
Brake linings - Front . 2" x 3⁄16" x 10¼" / Rear . 2" x 3⁄16" x 7 7⁄8"
...Later models: 2" x 3⁄16" x 9.8" (¼" - 3⁄16" - thick on rear linings, front wheel...)
Wheel Alignment
Toe-In - 0 to 3 mm
Camber - -¼ to +½
Caster Angle - -¾ to +¼
King pin angle - 5

Volvo PV544 (B16B Engine) (1958-60) GHJkL - 1500000
Engine
Bore & Stroke - 79.37 mm x 80 mm
Displacement - 1580 cc
Firing Order - 1-3-4-2
Oil Pressure (Hot) - 49.7 lb./sq. in.
Fuel Supply
Carburetor - Horizontal Twin SU
Choke - 1.5"
Main - ? mm
Compensating - ? mm
Slow Running - ? mm
Needle - ? mm
Valving
Intake Tappet Clearance - 0.50 mm (Hot)
Exhaust Tappet Clearance - 0.50 mm (Hot)
Valve-Timing Indication - Marking in gear and flywheel
Intake Valve Opens - ? ...TDC 1.15 mm Clearance
Ignition
Breaker gap - 0.4 - 0.5 mm
Plug gap - 0.7 mm
Ignition Timing Indication - Gradation in the flywheel
Ignition Timing - 4 to 6 BTDC
Clutch
Clutch Type - Single Dry Plate
Clutch Linings - 8" x 1⁄8"
Brakes
Brake Type - Hydraulic (Later models: Hydraulic duo servo)
Brake linings - Front . 2" x 3⁄16" x 10¼" / Rear . 2" x 3⁄16" x 7 7⁄8"
...Later models: 2" x 3⁄16" x 9.8" (¼" - 3⁄16" - thick on rear linings, front wheel...)
Wheel Alignment
Toe-In - 0 to 3 mm
Camber - -¼ to +½
Caster Angle - -¾ to +¼
King pin angle - 5