CORE AS-OIL COOLER 2170316 - Caterpillar

Make reference to Guideline For Reusable Parts; Pistons, SEBF8049; Cylinder Liners, SEBF8068; and Piston Pins And Retaining Rings, SEBF8051. For installation, number on tab groove side of connecting rod is to be positioned toward opposite side of engine from camshaft.Top And Intermediate Ring
The 1U6431 Keystone Piston Ring Groove Gauge is necessary for measuring ring grooves in keystone style pistons. For correct use of the gauge group, see the instruction card that is with the gauge group.Install piston rings with "UP" side toward top of piston.(1) Top Ring has the mark "UP-1".(2) Intermediate ring has the mark "UP-2".Clearance between ends of piston ring when installed in a cylinder liner with a bore size of 137.16 mm (5.400 in):Top ring ... 0.724 0.190 mm (.0285 .0075 in)Intermediate ring ... 1.080 0.190 mm (.0425 .0075 in)Increase in clearance between ends of piston rings for each 0.03 mm (.001 in) increase in cylinder liner