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Home›Repair guides›REMOVE CYLINDER HEAD

G5 — REMOVE CYLINDER HEAD

For the G5.

Before you start

  • After operating engine, allow
  • If cylinder head is being removed for piston and

Procedure

  1. Drain all engine oil and coolant. Disconnect turbocharger oil inlet line at turbocharger or oil filter base. (See DISCONNECT TURBOCHARGER OIL INLET LINE in Group 03.) - NOTE: If cylinder head is being removed for piston and liner repairs or any other service that does not require disassembly of head, cylinder head can be removed with water manifold (A), turbocharger (8), intake manifold (C), and exhaust manifoid (D) installed.
  2. Remove water manifold and all coolant piping. (See ‘Group 25, Cooling System.)
  3. Remove turbocharger. Remove front and rear exhaust manifold (D). (See Group 30, Air Intake and Exhaust System.)
  4. Remove air intake manifold. (Group 30.)
  5. Remove fuel injection delivery lines and injection nozzles. (See Group 35, Fuel System.)
  6. Remove rocker arm cover with ventilator outlet hose assembly. A—Water Manifold 8—Turbocharger C—Iintake Manifold D—Exhaust Manifold Assembly -UN-23AUG88 TS281

Source: manual:Component Technical Manual 8.1L 6081 1994.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.