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Opel Commodore A (1968-1972)

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1960s 1970s
Germany
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  • Opel Commodore A Technical details and specifications (1968-1972) 

    Commodore 4-door Limousine

    ENGINE 2.490 cc 
    front, 4 stroke
    6 cylinders, In line
    151.9 cu In, 2.490 cc (3.43 x 2.75 in, 87 x 69.8 mm)
    compression ratio: 9.5:1
    cast iron cylinder block and head
    7 crank-shaft bearings
    valves: overhead, in line, hydraulic tappets
    camshafts: 1, overhead
    lubrication: gear pump, full flow
    1 Zenith 35/40 INAT downdraught twin barrel carburettor
    fuel feed: mechanical pump

    TRANSMISSION
    driving wheels: rear
    clutch: single dry plate (diaphragm)
    gearbox: mechanical
    gears: 4, fully synchronized
    ratios: 1 3.428. 2 2.156. 3 1.366, 4 1. rev 3.317
    final drive: hypoid bevel
    axle ratio: 3.450

     

    CHASSIS
    Type integral
    front suspension: independent, wishbones. lower trailing links. coil springe. anti-roll bar. telescopic dampers
    rear suspension: rigid axle, twin trailing radius arms, upper torque arms, transverse linkage bar, coil springs. anti-roll bar. telescopic dumpers.

    STEERING
    recirculating ball
    turns lock to lock: 4.5.
    turning circle (between walls): 36.7 ft, 11.2 m

    BRAKES
    front disc (diameter 10.67 in. 271 mm). rear drum.
    servo

    ELECTRICAL EQUIPMENT
    12 V
    44 Amp battery
    35 Amp alternator
    Bosch distributor
    2 halogen headlamps.

    DIMENSIONS AND WEIGHT :Commodore 4-door Limousine
    wheel base: 105.04 in. 2.66b mm
    tracks: 56.46 in, 1.434 mm front. 55.12 in, 1,400 mm rear
    length: 181.38 in, 4,607 mm
    width: 68.03 in, 1,728 mm:
    height: 55.31 in, 1,405 mm
    ground clearance: 6.02 in, 153 mm
    dry weight: 2,679 1b, 1,215 kg

    DIMENSIONS AND WEIGHT: Commodore Coupé

    wheel base: 105.04 in. 2.66b mm
    tracks: 56.46 in, 1.434 mm front. 55.12 in, 1,400 mm rear
    length: 181.38 in, 4,607 mm
    width: 68.03 in, 1,728 mm:
    ground clearance: 6.02 in, 153 mm
    height: 53.94 in, 1,370 mm
    dry weight: 2,624 1b, 1,190 kg.

    © Motor car History

     

    Opel Commodore:

    2200

    2500 s

    2500 h

    2500 E

    2800 h

     

    Engine: 

    6-cylinder in-line engine (four-stroke)

     

    displacement: 

    2239 cc

    2461 cc

    2784 cc

     

    Bore × stroke: 

    82.5 × 69.8 mm

    87 × 69.8 mm

    92 × 69.8 mm

     

    Power at 1 / min: 

    70 kW 
    (95 hp) 
    at 4800

    84-88 kW 
    (115-120 hp) 
    at 5200-5500

    96 kW 
    (130 hp) 
    at 5300

    110 kW 
    (150 hp) 
    at 5800

    107 kW 
    (145 hp) 
    at 5200

     

    Max. Torque at 1 / min: 

    157 Nm at 3200

    173 Nm at 3800-4200

    186 Nm at 4250

    196 Nm at 4500

    222 Nm at 3700

     

    Compression: 

    8.2: 1

    9.5: 1

     

    Fuel supply: 

    1 register downdraft carburettor Solex 32/35 DIDTA

    2 register downdraft carburetors

    Electronic fuel injection Bosch D-Jetronic

    2 register downdraft carburetors

     

    Valve control: 

    CIH (Camshaft in head): 
    overhead camshaft driven by a hydraulically tensioned duplex roller chain, suspended valves actuated by a pusher and rocker arm

     

    Cooling: 

    water cooling

     

    Transmission: 

    4-speed gearbox, stick shift 
    (A to W. 1968 Powerglide two-speed automatic transmission (GM), 
    AW from Sept. 1968 for 2500 S / H / E and 2800 H three-speed automatic transmission (Opel)

     

    Front suspension: 

    Independent suspension on double wishbones, coil springs

     

    Rear suspension: 

    Rigid axle with 4 trailing links, Panhard rod ("five- link axle") and coil springs

     

    Body: 

    Sheet steel, self-supporting

     

    Track front / rear: 

    1410/1410 mm

     

    Wheelbase: 

    2668 mm

     

    Length: 

    4574 mm

     

    Width:

    Saloon: 1754 mm

     

    Coupé: 1758 mm

     

    Height:

    Sedan: 1445 mm

     

    Coupé: 1440 mm

     

    Empty weight: 

    1130-1270 kg

     

    maximum speed: 

    162-167 km / h

    165-175 km / h

    175-180 km / h

    184-197 km / h

    185-197 km / h

     

    0-100 km / h: 

    16-17 s

    12-15 s

    10-12 s

    9.5-11 s

    11-12 s

     

    Consumption (litres / 100 kilometres): 

    13.0 N

    13.5 s

    14.0 s

    14.0 s

    15.0 s

     

     

Service

  • Opel Commodore A Service Guide and Practical instructions (1968-1972) 

    fuel: 98 oct petrol
    engine oil: 8.8 imp pt. 10.6 US pt, 5 1, SAE 20W-30, change every 3,100 miles, 5,000 km
    gearbox oil: 1.9 imp pt, 2.3 US pt, 1.1 1, SAE 80 no change recommended
    final drive oil: 2.5 imp pt, 3 US pt, 1.4 1, SAE 90, no change recommended;
    spark plug type: 2000
    valve timing 2.490 cc: 40° 88° 80° 48°
    valve timing 2,784 cc : 40° 94° 84° 54°.
    tyre pressure: front 28 psi, 2 atm, rear 31 psi, 2.2 atm.
    cooling system capacity 2.490 cc: 16.9 Imp pt, 20.3 US pt, 9.6 1.
    cooling system capacity 2,784 cc : 16.2 imp pt, 19.4 US pt. 9.2 1.
    width of rims: 6"
    tyres: 175 HR x 14.
    fuel tank: 15.4 imp gal, 18.5 US gal, 70 1.

    © Motor car History

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Opel Commodore A

Opel Commodore A

Production period:

1968 to 1972

Class:

Motor Car

Body versions:

Sedan, coupe

Engines:

Gasoline: 2.2-2.8 litres 

Power

95-150 hp

Length:

4550-4574 mm

Width:

1754 mm

Height:

1456 mm

Wheelbase:

2669 mm

Curb weight:

1025-1240 kg

 

The Opel Commodore A from Adam Opel AG was a car built from 1968 to 1972.

History

The Opel Commodore A positioned in the more upper-class luxury range. The Commodore was derived from the record C. The production of the successor Commodore B began by December 1971.The Opel Commodore A was marketed as an upgraded sister model of the Opel Rekord C with four-cylinder engines and was available as a two and four-door notchback sedan, as a two-door coupe. A luxury station wagon model called "Voyage" was presented only as a concept study, but did not enter into the regular sales program. The coupe was rebuilt among others by the company Karl Deutsch GmbH as a convertible body.

Opel Commodore A specifications

Feature of this series were introduced with the Opel Rekord B Opel CIH engines, in which the driven by a duplex roller chain and laterally next to the valve’s overhead camshaft via short pusher and rocker arm. These engines were used in almost all major Opel models until the 1990s: in the Omega A (2.4i / 2.6i / 3.0i), Senator B (3.0i / 3.0i 24V) and last in the Frontera.

The smallest engine with 95 hp had a displacement of 2.2 litres and was built only in small numbers. There was already the "record 6", which was in a small series a year before the introduction of the Commodore models.

Initially available were the 2.5 S with 115 hp (from August 1969 with 120 hp) and the more powerful model Commodore GS with the engine 2.5 H (130 hp). The from February 1970 available top model GS / E was equipped with a 2.5-liter engine with electronic fuel injection (Bosch D-Jetronic), which made 150 hp. On request, the vehicle was also delivered with a three-speed automatic transmission.

Opel Commodore A (1968-1972)

PERFORMANCE 2.5L (2.490 cc)

max power (DIN): 115 hp at 5,200 rpm
max torque (DIN): 128 1b ft. 17.7 kg m at 3,800 rpm
max engine rpm: 6.00; 46.1 hp/l
max speeds: (1st) 33 mph, 53 km/h; (2nd) 53 mph. 85 km/h; (3rd) 83 mph, 134 km/h; (IV) 109 mph,175 km/h
power-weight ratio: 23.1 lb/hp. 10.5 kg/hp
fuel consumption: 25.7 m/imp gal, 21.6 m/US gal, 11,1 1 x 100 km.

To a lesser extent, there were from April 1970 to September 1971, the model GS / 2.8 with 2.8 litres and 145 hp. The Commodore A produced 156,467 units between January 1967 and December 1971, of which 72,597 units were for the four-door sedan, 70,333 for the coupe and 13,537 for the two-door sedan. 

PERFORMANCE 2.8L (2,784 cc)
max power (DIN): 160 hp at 5,400 rpm
max torque (DIN): 169 1b ft. 23.3 kg m at 4,200 rpm
max speed: 121 mph, 195 km/h
power-weight ratio:' 17.4 lb/hp, 7.9 kg/hp
fuel consumption: 25 m/ imp gal, 20.8 m/US gal, 11.3 1 x 100 km.

Opel Commodore A Technical details

OPTIONAL ACCESSORIES
Opel automatic transmission with 3 ratios (1st 2.400, 2nd 1.480, 3rd 1, rev 1.920); limited slip differential; 195/70 HR x 14 tyres; power-assisted steering; sunshine roof; electrically-heated rear window.

Motor variants 

As engines, six variants were available:

  • 2,2 - 95 hp (70 kW)
  • 2.5S - 115 HP (85 kW), from 1969: 120 HP (88 kW)
  • 2.5h - 130 hp (96 kW) (GS)

from 1970 additionally:

  • 2.5E - 150 HP (110 kW) (GS / E)
  • 2,8H - 145 HP (107 kW) (GS / 2.8)

Opel-Commodore-GS-E

 

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