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BMC C-Series engine

 BMC C-Series engine range history
 
 
 

The BMC C-Series was a straight-6 automobile engine produced from 1956 to 1971. Unlike the Austin designed A and B-series engines, it came from the Morris engines drawing office in Coventry. Displacement was 2.6 to 2.9 L (2,912 cc) with an 83.3 mm bore and 88.9 mm stroke.

Applications:

  • 2.6 L (2,639 cc) 77x89 mm
    • 1954-1959 Wolseley 6/90
    • 1954-1959 Austin Westminster A90/A95/A105
    • 1955-1958 Morris Isis
    • 1958-1959 Riley Two-Point-Six
    • 1956-1959 Austin-Healey 100-6
  • 2.9 L (2,912 cc) 83.36x88.9 mm. Four bearing crankshaft.
    • 1959-1968 Austin Westminster A99/A110
    • 1959-1968 Wolseley 6/99 and 6/110
    • 1959-1964 Vanden Plas Princess 3-Litre
    • 1959-1967 Austin-Healey 3000
  • 2.9 L (2,912 cc) 83.36x88.9 mm. Seven bearing crankshaft.
    • 1967-1971 Austin 3-Litre
    • 1968-1970 MGC
Related items
Riley Two-Point-Six | MG MGC | Vanden Plas Princess | Wolseley 6/110 | Wolseley 6/99 | Wolseley 6/90 | Austin 3-Litre | Austin A95 | Austin A90 | Austin A110 | Austin A99 | Austin-Healey | Petrol Engines | Morris Isis | Straight 6 Engines | BMC C-Series engine | Straight-6 cars

Technical

  • BMC C-Series engine  Technical details and specifications (1956-1971)

    ENGINE: 3.0L (2,912 cc)

    front, 4 stroke
    cylinders: 6, vertical, in line
    bore and stroke: 3.28 x 3.50 in, 83,3 x 88.9 mm
    engine capacity: 178.10 cu in, 2912 cu cm
    compression ratio: 8.3 : 1
    max power (SAE): 126 hp at 4750 rpm
    max torque (SAE): 163 1b ft, 22.5 kgm at 2750 rpm
    max number of engine rpm: 5600
    specific power: 43.3 hp/l
    cylinder block: cast iron
    cylinder head: cast iron
    crankshaft bearings: 4
    valves: 2 per cylinder, overhead, in line, with push rods and rockers
    camshaft: 1, side
    lubrication: gear pump, full flow filter
    lubricating system capacity: 6.4 imp qt, 7.7 US qt, 7.3 1
    carburation: 2 SU H4 horizontal carburettors
    fuel feed: electric pump
    cooling system: water

    © Motor car History

Service

  • BMC C-Series engine  Service Guide (1956-1971)

    ENGINE: 3.0L ( 2,912 cc)

    fuel: petrol, 95-98 Oct
    engine sump oil: imp qt, 6.5 US qt, 6.2 1, SAE 1OW-20 (winter) 20W-30 (summer), change every 3000 miles, 4800 km
    gearbox oil: 2.7 imp qt, 3.3 US qt, 3.1 1, SAE 30W, change every 6000 miles, 9600 km
    final drive oil: 1.6 imp qt. 1.9 US qt. 1.8 1, SAE 90
    greasing: every 3000 miles, 4800 km, 8 points
    tappet clearance: inlet 0.012 in, 0.30 mm hot, exhaust 0.012 in, 0.30 mm hot
    valve timing: (inlet) opens 0° before tdc and closes 50° after bdc, (exhaust) opens 35° before bdc and closes 15° after tdc
    tyre pressure (medium load): front 26 psi, 1.8 atm, rear 26 psi, 1.8 atm
    tyres: 7.00 - 14
    fuel tank capacity: 16.00 imp gal, 19.27 US gal, 73 1.
    cooling system capacity: 9.5 imp qt, 11.4 US qt, 10.8 1.

    © Motor car History

Maintenance

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