3116 and 3126 Truck Engines Piston Cooling Jet

Check piston cooling jets by inserting a 1.3 mm (0.05 in) diameter drill rod into jet. Rods must pass through a 5.0 mm (0.20 in) diameter circle in location (A) and a 13.0 mm (0.51 in) diameter circle in location (B). Both circles are located at depth (G) 50.0 mm (1.97 in) below the top of the cylinder block.

Dimension (C) … 25.9 mm (1.02 in)Dimension (D) … 33.4 mm (1.31 in)Dimension (E) … 26.9 mm (1.06 in)Dimension (F) … 9.8 mm (0.39 in)Dimension (G) … 50.0 mm (1.97 in)

Check piston cooling jets by inserting a 1.90 mm (0.075 in) diameter drill rod into jet. Rods must pass through a 12.7 mm (0.50 in) diameter circle in location (A). The circle is located at depth (G) 50.0 mm (1.97 in) below the top of the cylinder block.

Dimension (C) … 25.9 mm (1.02 in)Dimension (D) … 33.4 mm (1.31 in)Dimension (G) … 50.0 mm (1.97 in)

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