CORE AS 5110296 - Caterpillar

1. Put clean engine oil on crankshaft bearing journals, inside of cylinder liner, piston rings and connecting rod bearings. The connecting rods have identification "EVEN" and "ODD". The rods with the identification "EVEN" are installed on the left side of the engine. The rods with the identification "ODD" are installed on the right side of the engine (as viewed from the flywheel end of the engine).
Never install the ring compressor on piston without the liner as a guide, or damage to the piston rings can be the result.
2. Put tool (A) in position on the cylinder liner. Put the piston and connecting rod in position on the cylinder liner.
Earlier model pistons have different size valve reliefs in the top of the piston for the intake and exhaust valves. These pistons have a "V" mark on the top of the piston. Put the "V" mark on the piston in alignment with the "V" mark on the block which is to the outside of the block on each side. Later model pistons have the same size valve reliefs for the intake and the exhaust valves. These pistons can or can not have the "V" marks on the top of the piston. These pistons must be installed with the part number on the rod toward the flywheel end of the engine.
3. Push the piston into place while the connecting rod is put into position on crankshaft. The wide faces (1) and (2) of the connecting rods must be toward the shoulders of the crankshaft.4. Put 5P960 Multipurpose Type Grease or 2P2506 Anti-Seize Compound on the threads, shank and head seat of the rod bolts.5. Install the rod cap and bolts. Tighten the bolts to a torque of 90 5 lb.ft. (120 7 N m). Put a mark on the head of each of the bolts. Tighten each bolt 120 5° more from mark.6. Turn crankshaft until the next bearing journal is at bottom center.7. Use the above procedure for installation of the remainder of pistons.end by:a) install oil pumpb) install cylinder heads
LATER PISTONS SHOWN
TYPICAL EXAMPLE EARLIER PISTONS SHOWNDisassemble Pistons
start by:a) remove pistons
On later pistons it is necessary to put identification on the piston respective to the position of the connecting rod. There are no marks on the piston for correct installation of the piston on the connecting rod. New pistons can be installed on the connecting rods either way.
1. Remove rings from pistons with tool (A).2. Remove the rod bearing from the connecting rod and connecting rod cap.
Put the number of the cylinder on the piston so the same piston is installed on the correct connecting rod.
3. Remove retaining ring (1), piston pin (2) and connecting rod (4) from the piston. Check the piston pin bearing (3) for wear. The bore in the piston pin bearing is 2.0013 .0003 in. (50.833 0.008 mm). The clearance between the piston pin and bearing must be .001 to .002 in. (0.025 to 0.051 mm). The maximum clearance for used