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Home >> MG >> 1968 >> MGB Base, Not Available Trans >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Mg Engines - (4 Cylinder) >> 1963-73 MGB & MGB/Gt 4 Cylinder >> Valve Timing

Valve Timing

  1. Set No. 1 cylinder intake valve clearance to 0.055" with engine cold. Turn crankshaft until valve is about to open. Indicator groove in flange of crankshaft pulley should be opposite longest pointer on indicator bracket beneath crankshaft pulley, indicating TDC.
    Fig 1: Timing Marks Location
    G09325983Courtesy of NOT AVAILABLE
    VALVE TIMING

    Engine INTAKE EXHAUST
    Open (BTDC) Close (ABDC) Open (BBDC) Close (ATDC)
    1798cc 16° 56° 51° 21°
  2. After timing has been checked, valve clearance should be reset. See VALVE CLEARANCE ADJUSTMENT .