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Home >> BMW >> 1984 >> 733i Automatic >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engines >> Transmission, Engine, Manifolds & Cylinder Head >> Cylinder Head >> Installation

Cylinder Head: Installation

  1. Clean all gasket mating surfaces. Remove oil from head bolt threaded holes in cylinder block. Clean and lubricate bolt heads and threads of head bolts. Using new head gasket, install cylinder head and bolts.
  2. On 2.7L engine, tighten head bolts in 4 steps. See Fig 1. Bring engine to normal operating temperature. On 4th step, use special torque wrench (11 2 110), retighten head bolts to torque angle of 20-30°.
  3. On 3.2L engine, tighten head bolts in 4 steps. See Fig 2. Wait 20 minutes and tighten head bolts to final torque. Bring engine to normal operating temperature.
  4. Using special torque wrench (11 2 110), retighten head bolts to torque angle of 20-30°. Never loosen bolts during tightening sequence; turn only in tightening direction.
    NOTE: DO NOT retorque head after 600 miles.
    Fig 1: 2.7L Cylinder Head Tightening Sequence
    G81848
    Fig 2: 3.2L Cylinder Head Tightening Sequence
    G81849
    NOTE: Use angle-calibrated torque wrench for final tightening (engine warm).
  5. On all models, install camshaft sprocket and timing chain (or timing belt). Ensure valve timing is correct. Install remaining components in reverse order of removal, using new gaskets where required. Adjust valves.