5.4" BORE, 60 V12 VEHICULAR ENGINE Caterpillar

NOTE: 9S2263 Top Ring (1) has the mark "UP-1.".

9S2264 Intermediate Ring (2) has the mark "UP-2".

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^**Install 1P708 Oil Control Ring (3) with the gap in the spring 180 ° away from the gap in the ring.

NOTE: Use 5P3519 PISTON RING GROOVE GAUGE to check top and center ring grooves with straight sides. For instructions on the use of the gauge, see the GUIDELINE FOR REUSABLE PARTS; PISTONS AND CYLINDER LINERS, Form No. SEBF8001.

(4) Bore in piston for pin ... 2.0006 ± .0003 in.(50.815 ± 0.008 mm)

Clearance between pin and bore in piston ... .0003 to .0013 in.(0.008 to 0.033 mm)

Maximum permissible clearance (worn) ... .002 in.(0.05 mm)

Pin diameter ... 1.9998 ± .0002 in.(50.795 ± 0.005 mm)

NOTE: When installed in the engine, the "V" mark on top of the piston must be in alignment with the "V" mark on the cylinder block.