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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 >> Removal

Cylinder Head: Removal

  1. Disconnect battery ground cable. Drain cooling system. Remove splash guard from bottom of engine. Disconnect exhaust pipes from manifolds.
  2. Disconnect accelerator and cruise control cables from throttle valve housing, including cable to automatic transmission (if equipped). Disconnect attached hoses and electrical wiring, then remove air cleaner with air flow sensor.
  3. Label and disconnect all coolant hoses attached to cylinder head. Label and disconnect all fuel, ventilation and vacuum hoses (or lines) from cylinder head and intake manifold.
  4. Label and disconnect all electrical and ignition wiring that might interfere with head removal. If necessary, disconnect electrical plug in glove box, and pull wiring through hole in firewall.
  5. Remove valve cover. Remove upper engine front cover (or timing belt cover on 2.7L engine). On 2.7L engine, remove distributor cap.
  6. Set No. 1 piston on TDC of compression stroke. Timing pointer and mark on vibration damper should align, and valves of No. 6 cylinder should overlap.
  7. On 3.2L engine, remove timing chain tensioner plug, spring and piston. On 2.7L engine, loosen timing belt tensioner bolts. Push tensioner sprocket inward, then tighten adjusting bolt.
  8. On 2.7L engine, remove timing belt from camshaft sprocket. On other models, remove camshaft sprocket. Remove cylinder head bolts in reverse of tightening sequence. Install locating pins in bolt holes to keep rocker arm shafts from turning. Remove cylinder head.
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