- Engine:
- G3412 (S/N: 7DB1-UP; 3NK1-UP; CTP1-UP)
- G3412C (S/N: 6ZM1-UP; 9RR1-UP; 8LW1-UP)
Introduction
This Special Instruction provides the procedure that is necessary for installing the 206-7745 Cylinder Head Gp or the 223-6523 Cylinder Head Gp and the 215-4812 Cylinder Head Gasket on the G3412 Engines and on the G3412C Engines.
Do not perform any procedure that is outlined in this Special Instruction until the entire Special Instruction has been read and understood.
Installation
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| Illustration 1 | g00897161 |
(1) Bolts (3/4 inch) (2) Bolts (3/8 inch) (3) Studs | |
Use the following procedure to tighten the cylinder head bolts:
- Apply 6V-4876 Lubricant to all bolt threads.
- Tighten bolts 1 through 20 according to the number sequence to the following torque.
Torque ... 270 ± 27 N·m (200 ± 20 lb ft)
- Tighten bolts 1 through 20 according to the number sequence to the following torque.
Torque ... 390 ± 10 N·m (288 ± 7 lb ft)
- Tighten bolts 1 through 20 according to the number sequence again to the following torque.
Torque ... 390 ± 10 N·m (288 ± 7 lb ft)
- Install the rocker arm group.
- Tighten bolts 21 through 26 according to the number sequence to the following torque.
Torque ... 270 ± 27 N·m (200 ± 20 lb ft)
- Tighten bolts 21 through 26 according to the number sequence to the following torque.
Torque ... 390 ± 10 N·m (288 ± 7 lb ft)
- Tighten bolts 21 through 26 according to the number sequence again to the following torque.
Torque ... 390 ± 10 N·m (288 ± 7 lb ft)
- Tighten the 3/8 inch bolts (2) to the following torque.
Torque ... 43 ± 7 N·m (32 ± 5 lb ft)
- Apply 6V-4876 Lubricant to the stud threads.
- Tighten studs (3) to the following torque.
Torque ... 35 ± 5 N·m (26 ± 4 lb ft)