ORIFICE 8M0924 - Caterpillar

Illustration 1 g03351600
Table 1
Specification for 377-2409 Piston
Item Qty Part Specification Description
Before installation, lubricate grooves for the piston rings in the piston body with clean engine oil. After assembly, lubricate the mating surfaces of piston rings and the liner with clean engine oil.
1 1 342-9087 Piston Ring Clearance between the ends of the top piston ring is 0.65 0.15 mm (0.026 0.006 inch).
Thickness of new top piston ring is 3.470 0.013 mm (0.1366 0.0005 inch).
Width of groove in new piston body assembly for piston ring is 3.600 0.010 mm (0.1417 0.0004 inch).
2 1 348-8779 Piston Ring Install the top piston ring with the side marked "UP" toward top of the piston.
Clearance between the ends of the piston ring is 1.700 0.150 mm (0.0669 0.0059 inch).
Thickness is 3.470 0.020 mm (0.1366 0.0008 inch).
Width of groove in new piston body assembly for piston ring is 3.600 0.010 mm (0.1417 0.0004 inch).
3 1 223-6361 Piston Ring Orient the ends of the oil control piston ring 180 degrees from the ring end gap.
Clearance between the ends of the new oil control piston ring is 0.50 to 0.80 mm (0.020 to 0.032 inch).
Width of groove in new piston body assembly for piston ring is 4.055 0.015 mm (0.1596 0.0006 inch).
Thickness is 3.980 0.010 mm (0.1567 0.0004 inch).
4 2 8N-7296 Pin Retainer Install the pin retainer with the opening towards top of the piston as shown in Illustration 1.
5 1 302-3451 Piston Pin Thoroughly lubricate the piston pin with clean engine oil before the piston pin is inserted into the piston body assembly and the rod assembly.
Inside diameter is 30.500 0.500 mm (1.2008 0.0196 inch)
Outside diameter is 69.930 0.005 mm (2.7531 0.0002 inch).
Length is 101.850 0.150 mm (4.0098 0.0059 inch).
Bore in piston for the piston pin is 75.000 0.250 mm (2.9527 0.0098 inch).