Cylinder Head Assembly: Service and Repair

Updated Per TSB 97-11-017















REMOVAL AND INSTALLATION

Removal Service Point
[A] Radiator Upper Hose Disconnect





Place mating marks on the radiator hose and the hoc and then disconnect the radiator hose.

Installation Service Points
]A[ Cylinder Head Bolt Installation





1. Cylinder head bolts should be carefully examined before reuse. If the threads are necked down, the bolts should be replaced. Necking can be checked by holding a scale or straight edge against the threads. If all the threads do not contact the scale, the bolt should be replaced.
2. Before installing the bolts, the threads should be oiled with clean engine oil.





3. Tighten the cylinder head bolts in the sequence shown in figure. Using the 4 step torque turn method, tighten according to the following values.
1. Tighten center fasteners 1 thru 6 to 33 Nm (25 ft.lbs.). Then outer fasteners 7 thru 10 to 27 Nm (20 ft.lbs.).
2. Tighten center fasteners 1 thru 6 to 67 Nm (50 ft.lbs.). Then outer fasteners 7 thru 10 to 27 Nm (20 ft.lbs.).
3. Tighten center fasteners 1 thru 6 to 67 Nm (50 ft.lbs.). Then outer fasteners 7 thru 10 to 27 Nm (20 ft.lbs.).





4. Turn all fasteners 1 thru 10 90° turn. Do not use a torque wrench for this step.

CAUTION:
1. Always make a tightening angle just 90°. If it is less than 90°, the head bolt will be loosened.
2. If it is more than 90°, remove the head bolt and repeat the procedure from step 1.

]B[ Radiator Upper Hose Connection





1. Insert each hose as far as the projection of the water outlet fitting or water inlet fitting.





2. Place mating marks on the radiator hose and the hose clamp, and then connect the radiator hose.

]C[ High-Pressure Fuel Hose Connect
When connecting the high-pressure fuel hose to the apply a small amount of clean engine oil to the has and then insert, being careful not to damage the O-ring.

CAUTION: Do not let the engine oil get into the fuel rail.