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Home >> Audi >> 1982 >> 4000 Base, 2D Sedan >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> 4000 4-Cylinder >> Engine & Cylinder Head >> Cylinder Head >> Removal

Cylinder Head: Removal

  1. Disconnect battery ground strap. Remove hose from air duct to auxiliary air regulator. Detach air duct from throttle valve housing and remove from vehicle. Remove cold start valve.
  2. Remove fuel distributor, air flow sensor, fuel injectors, and air cleaner as one unit. If possible, leave fuel lines connected to components. Cap or plug nozzles on fuel injectors and cold start valve.
  3. Drain coolant from engine. Disconnect coolant hoses which are attached to cylinder head. Label and disconnect all vacuum, air and ventilation hoses attached to cylinder head and intake manifold.
  4. Label and disconnect all electrical and ignition wiring attached to cylinder head and intake manifold. Disconnect wire attached to oxygen sensor in exhaust manifold. Remove all drive belts. Remove alternator bracket from cylinder head. Remove upper timing belt cover. Remove cam cover.
  5. Disconnect exhaust pipe from manifold. Disconnect throttle cable. If equipped, remove cruise control servo and linkage. Position No. 1 cylinder on TDC after compression stroke. Loosen timing belt tensioner to relieve tension on timing belt.
  6. Remove timing belt sprocket from camshaft with timing belt attached. Do not allow timing belt to separate from camshaft sprocket. Loosen head bolts in reverse order of tightening sequence and remove cylinder head with manifolds attached. See Figure.
    CAUTION: If head bolt(s) require replacement, install new polygon head bolts in complete sets only. Retightening of polygon head bolts at 1000 mile service following repair is NOT recommended by manufacturer.