PLUG-ORIFICE 6T6052 - Caterpillar

Remove Cylinder Head Assembly (3304)
start by:a) remove air cleanerb) remove carburetorc) remove exhaust manifoldd) remove rocker shaft and push rodse) remove water temperature regulator1. Drain the coolant from the cooling system.2. Loosen clamp (1) on the hose that connects water pump elbow to the engine oil cooler.3. Remove bolts, gasket and elbow (2) from the cylinder head and water pump.4. Remove bolts and bracket (3) from the cylinder head.5. Remove bolts (4) that hold the cylinder head assembly to the cylinder block.6. Install a 3/4"-10 NC eyebolt. Fasten a hoist to the cylinder head assembly.7. Remove the head assembly. The weight of the cylinder head assembly is 140 lb. (63 kg).8. Remove the cylinder head gasket. Install Cylinder Head Assembly (3306)
1. Thoroughly clean the spacer plate and the bottom surface of the cylinder head that make contact with the cylinder head gasket. Be sure a new gasket has been installed between spacer plate and cylinder block. See INSTALL SPACER PLATE.2. Install cylinder head gasket (1).3. Fasten a hoist and install the cylinder head assembly (2) on the cylinder block.
Make sure the dowels in the rocker shaft assembly are in alignment with the holes in the cylinder head before the bolts are installed and tightened.
4. Install the push rods and put rocker shaft (3) in position on the cylinder head. Put 2P2506 Anti-Seize Compound on the threads of the cylinder head and rocker shaft bolts. Install the bolts and washers and tighten the bolts as follows: 1. Tighten all bolts in number sequence to a torque of 115 lb.ft. (156 N m).2. Again tighten all bolts in number sequence to a torque of 185 13 lb.ft. (250 17 N m).3. Again tighten all bolts in number sequence (hand torque only) to a torque of 185 13 lb.ft. (250 17 N m).4. Tighten all bolts in letter sequence to a torque of 22 lb.ft. (30 N m).5. Again tighten all bolts in letter sequence to a torque of 32 5 lb.ft. (43 7 N m).6. Again tighten all bolts in letter sequence to a torque of 32 5 lb.ft. (43 7 N m). 5. Make adjustment of valves to have a clearance of .015 in. (0.38 mm) for intake and .025 in. (0.64 mm) for exhaust. See VALVE CLEARANCE SETTING in TESTING AND ADJUSTING.6. Install bracket (4) and the bolts which hold it to the cylinder head.7. Put gaskets (6) and (7) in position. Put elbow (5) in position and install the bolts. Tighten hose clamp (8).end by:a) install water temperature regulatorb) install exhaust manifoldc) install carburetord) install air cleanere) install valve cover