C3.3 Industrial Engine Caterpillar


Piston Cooling Jet

Usage:

C3.3 E3J
Note: The three cylinder naturally aspirated engine may have installed piston cooling jets as an option.


Illustration 1g00942652
(1) Installed piston cooling jets

The valve that is spring loaded must move freely. Tighten the bolt to the following torque. ... 9 N·m (7 lb ft)

Piston Cooling Jet Alignment



Illustration 2g01006929
(2) Piston cooling jet
(3) Rod
(4) Cylinder block

Use the following procedure in order to check the alignment of the piston cooling jet.

  1. Insert rod (3) into the end of the piston cooling jet (2). Rod (3) has a diameter of 1.70 mm (0.067 inch). Rod (3) must protrude out of the top of the cylinder block.

  2. Dimension (A) is 55.25 mm (2.1752 inch) and dimension (B) is 14 mm (0.5512 inch). Dimension (A) and dimension (B) are tangent to the cylinder bore (4).

  3. The position of the rod (3) must be within dimension (C). Dimension (C) is 14 mm (0.5512 inch).
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