3176C and 3196 Engines for Caterpillar Built Machines Caterpillar

Illustration 1	g01416036

The piston cooling jets (3) must be checked for the location of the stream of oil. Insert a drill rod with a diameter of 2.0 mm (0.08 inch) into the orifice. This drill rod simulates the stream of oil under normal operating pressure. The drill rod must pass through a circle with a diameter of 10.0 mm (0.39 inch) at point (2). Place the drill rod in the second orifice. The drill rod must pass through a circle with a diameter of 10.0 mm (0.39 inch) at point (1). The circles are located at dimension (D).

Use the following dimensions in order to locate point (2) and point (1).

Dimension (A) ... 38.44 ± 0.25 mm (1.513 ± 0.010 inch)

Dimension (B) ... 52.30 ± 0.25 mm (2.059 ± 0.010 inch)

Dimension (C) ... 15.46 ± 0.25 mm (0.609 ± 0.010 inch)

Dimension (D) ... 250.00 ± 0.25 mm (9.842 ± 0.010 inch)

Dimension (E) ... 4.4 mm (0.17 inch)

Illustration 2	g01325266
(4) Piston cooling jet

(5) Torque for the bolt ... 30 ± 7 N·m (22 ± 5 lb ft)