ROLLER ASSEM. 4H9065 - Caterpillar

START BY: a. remove cylinder head assemblyb. remove oil pan 1. Put the engine in position on tooling (A) as shown. 2. Remove the carbon ridge from the top inside surface of the cylinders with tool (B). 3. Turn the crankshaft until the two center pistons are in the down position.4. Remove nuts (1) and rod cap (2). Put pieces of rubber hose or tape on the threads of the connecting rod bolts as protection for the crankshaft.
Do not let the connecting rods hit the crankshaft or the bottom edge of the cylinder bore when the pistons are removed.
5. Push the piston and connecting rod away from the crankshaft until the piston rings are above the cylinder block. Remove piston (3) and connecting rod (4) as a unit.6. Keep each connecting rod cap with its respective connecting rod and piston. Put identification marks on each piston as to its location in the cylinder block.
Do not turn the crankshaft while any of the connecting rods are in the engine without the connecting rod caps installed.
7. Repeat Steps 3 through 6 for the remainder of the pistons.Install Pistons And Connecting Rods
1. Put the engine in position on tooling (A).2. Put clean engine oil on the piston rings, connecting rod bearings, cylinder walls and crankshaft journals. 3. Make sure the piston ring gaps are at least 120° apart on the piston.4. Use tool (B), and install the piston and connecting rod in the same cylinder bore of the engine from which it was removed. The hole (crater) in the top of the piston must be toward the camshaft side of the engine. For more detail concerning the installation of connecting rod bearings, see Remove And Install Connecting Rod Bearings.5. Check the bearing clearances with tool (C). For complete details concerning measuring bearing clearances, see Engine Bearing And Crankshafts, Form No. SEBD0531.6. Put clean engine oil on the threads of the bolts and contact surfaces of the nuts for the connecting rod caps.
When the connecting rod caps are installed, make sure that the number on the side of cap (1) is next to and respective with the number on the side of connecting rod (2).
7. Put cap (1) in position on the connecting rod, and install the nuts. Tighten the nuts to a torque of 41 4 N m (30 3 lb.ft.). Put a mark on each nut and the end of each bolt. Tighten the nuts 60 5° more.8. Repeat Steps 1 through 7 for the remainder of the pistons.END BY: a. install cylinder head assemblyb. install oil panDisassemble Pistons And Connecting Rods
START BY: a. remove pistons and connecting rods 1. Remove the rings from the piston with tool (A). 2. Remove the bearings from the connecting rod and connecting rod cap.3. Remove snap rings (3), pin (1) and connecting rod (2) from the piston. 4. See Use Of Piston Pin Bearing Removal And Installation Tools, Special Instructions, Form No. SMHS7295 for more information concerning removal and