- Clean sealing surfaces.
- Install cylinder head gasket. Marking "oben" (top) on gasket must face upward, toward cylinder head.
- Position cylinder head on cylinder block using centering pins.
- Install cylinder head.
- Install cylinder head bolts and hand tighten.
| CAUTION | ALWAYS REPLACE cylinder head bolts (use new). |
Tightening Sequence Of Cylinder Head Bolts. Scheme 66
Scheme 66: Tightening Sequence Of Cylinder Head Bolts
Tighten cylinder head bolts in steps, following specified tightening sequence for each step.
| Step | (2) Torque |
|---|
| Step1 | 40 Nm (30 ft lb) |
| Step 2 | 60 Nm (44 ft lb) |
| Step 3 | Additional 1/2 -turn (180°) (1) |
| (1) Carry out the additional 1/2 -turn using a rigid wrench without lifting off the wrench; two steps of 1/4 -turn (90°) are also permissible. (2) ALWAYS REPLACE cylinder head bolts (use new). |
| (1) | Carry out the additional 1/2 -turn using a rigid wrench without lifting off the wrench; two steps of 1/4 -turn (90°) are also permissible. |
| (2) | ALWAYS REPLACE cylinder head bolts (use new). |
TIGHTENING TORQUES - CYLINDER HEAD (ENGINE COLD)
Note. It is not necessary to re-tighten the cylinder head bolts during regular service or after repairs. Before installing the intake manifold, first install the front vent hose located below the intake manifold on the engine.
