Usage:
start by:
a) remove rocker shafts and push rods
b) remove intake manifolds
1. Remove the instrument panel from cylinder head to be removed.
2. Drain the coolant from the radiator to a level below the cylinder head.
3. Remove the bolts that hold the plate (2) on bottom of exhaust shield. Let the plate keep position in the "V" of engine.
4. Remove the plugs (1) from the shield.
5. Remove the bolts that hold the exhaust manifold to each cylinder head.
6. Remove the fuel lines (5) for the head to be removed. Put covers on fuel valves, lines and pumps. Put covers on fuel valves, lines and pumps. Remove two elbows (4) for each cylinder head. Remove the governor control channel for cylinder heads on left hand side only.
7. Remove oil line (3) for the rocker shaft.
8. Remove nuts (6) from the cylinder head.
NOTE: Later engines use bolts instead of nuts and studs.
9. Install two 1/2"-13 NC forged eyebolts in head.
10. Fasten a hoist to the eyebolts and slowly remove the cylinder head. Weight is 190 lb. (86 kg).
Install Cylinder Heads
1. Clean the block and cylinder head. Install new head gaskets, new water seals and ferrules.
2. Install two 1/2"-13 NC forged eyebolts in head. Fasten a hoist and slowly lower the head over the studs until it is in correct position over head gaskets and seals. Weight is 190 lb. (86 kg).
NOTE: Later engines use bolts to hold the cylinder heads. With the new bolts, the threads are changed in the holes in the cylinder block. Use two 4L6788 Studs loosely fitted in the cylinder block as guides for head installation.
3. Put 5P3931 Anti-Seize Compound on threads of head studs or bolts and on the bolts for exhaust manifold. Install nuts and washers on studs. On earlier engines tighten nuts in following step sequence:
1. Tighten nuts by number to a torque of 150 ± 10 lb.ft. (205 ± 14 N·m).
2. Tighten nuts by number to a torque of 250 ± 10 lb.ft. (340 ± 14 N·m).
3. Earlier engines tighten nuts again by number (hand torque only) to a torque of 250 ± 10 lb.ft. (340 ± 14 N·m).
Later engines tighten the bolts to a torque of 265 ± 10 lb.ft. (360 ± 14 N·m).
4. Install new gaskets for the exhaust manifold. Install the bolts (1) that hold exhaust manifold to head. Tighten bolts (1) to a torque of 75 ± 10 lb.ft. (100 ± 14 N·m).
5. Install the plate and plugs on the shield for the manifold bolts (if so equipped).
6. Install the oil line (2) for the rocker shaft.
7. Install the two elbows (3). Install the fuel lines. Tighten nuts (4) on fuel lines to a torque of 25 to 35 lb.ft. (35 to 45 N·m). Install governor control channel (on left hand side only).
8. Install the instrument panel.
9. Fill the radiator with coolant. See the MAINTENANCE GUIDE.
end by:
a) install intake manifolds
b) install rocker shafts and push rods