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Lubricate the threads and the underside of the head bolts with clean engine oil.
The head bolts require an additional torque turn procedure. The numbers (1, 3, 4) are three long cylinder head bolts. All the other bolts are short bolts. The tightening sequence is shown in Illustration 1.
Thickness of the cylinder head ... 117.95 to 118.05 mm (4.643 to 4.647 inch)
Minimum thickness of cylinder head ... 117.20 mm (4.614 inch)
Main bearing cap bolts
Use the following procedure in order to install the main bearing cap bolts:
Torque for the main bearing cap bolts. ... 245 N·m (180 lb ft)
The mating surfaces of the connecting rod are produced by hydraulically fracturing the forged connecting rod.
(1) Tighten the connecting rod bolts to the following torque. ... 18 N·m (13 lb ft)
Tighten the connecting rod bolts again to the following torque. ... 70 N·m (52 lb ft)
Tighten the screws for the connecting rod for an additional 120 degrees. The screws for the connecting rod (1) must be replaced after this procedure.
Note: Always tighten the connecting rod cap to the connecting rod, when the assembly is out of the engine. Tighten the assembly to the following torque 20 N·m (14 lb ft).
Tighten the three bolts for the crankshaft pulley to the following torque. ... 115 N·m (85 lb ft)
Remove the valve mechanism cover and perform the following procedure in order to adjust the valve lash:
This is for 3054C INDUSTRIAL ENGINE 334 serial number prefix.