Diesel Data: Automotive Repair

RH

Cylinder Head RH

Removal
1. Disconnect the battery negative cable.
2. Drain the engine cooling system.
3. Remove the RH exhaust manifold.
4. Remove the lower intake manifold.
5. Remove the push rods.
6. Remove the drive belt.
7. Disconnect the A/C manifold and tube assembly.





8. Disconnect the A/C compressor clutch electrical connector.





9. Remove the A/C compressor bracket.





10. Remove the three exhaust manifold studs.





11. NOTE: Discard the cylinder head gasket.

NOTE: Record the location of the long bolts and the short bolts.

Remove the cylinder head. Discard the cylinder head bolts.

Installation

NOTE: Do not use a fiber disc to clean the surfaces. Fibers from the disc can get into the oil pan and oil and clog the oil bypass valve.

1. Clean and inspect the cylinder head for flatness.





2. Install a new head gasket on the cylinder block with the small hole to the front of the engine and position the cylinder head.





3. CAUTION: Always use new bolts.

NOTE: Lubricate the bolts with clean engine oil.

Install new bolts. Refer to the location note made during removal and make sure the bolts are installed the correct location.
1. Install the new long bolts.
2. Install the new short bolts.





4. Tighten the bolts in three stages in the sequence shown.
^ Stage 1: Tighten to 20 Nm (15 ft. lbs.).
^ Stage 2: Tighten to 40 Nm (30 ft. lbs.).
^ Stage 3: Tighten to 50 Nm (37 ft. lbs.).





5. CAUTION: Do not loosen all of the bolts at one time. Each bolt must be loosened and final-tightened prior to working on the next bolt in the sequence.

NOTE: The short bolts are numbered 2, 4, 6 and 8 and the long bolts are numbered 1, 3, 5 and 7.

Loosen, then tighten the bolts in the sequence shown:
^ Tighten short bolts to 25 Nm (18 ft. lbs.), then tighten an additional 180 degrees.
^ Tighten long bolts to 45 Nm (33 ft. lbs.), then tighten an additional 180 degrees.





6. Install the three studs.





7. Install the bracket and bolts.





8. Connect the A/C compressor clutch electrical connector.
9. Connect the A/C manifold and tube assembly.
10. Install the accessory drive belt.
11. Install the push rods.
12. Install the lower intake manifold.
13. Install the RH exhaust manifold.
14. Connect the battery ground cable.

15. CAUTION: Correct cooling system bleeding is critical for correct engine cooling.

Fill and bleed the engine cooling system.
16. Recharge the A/C refrigerant system.