3054, 3054B and 3056 Marine Engines Caterpillar

Illustration 1	g00631670
Piston cooling jet alignment is shown from the top of the cylinder block.

(1) Piston cooling jet

Tighten the banjo bolts for the piston cooling jets to the following torque. ... 20 N·m (15 lb ft)

Note: Ensure that the piston cooling jet is positioned correctly on the dowel in the cylinder block (not shown).

(2) Rod

3054B Engine

Note: The 3054B engine has a single piston cooling jet at the number one cylinder position.

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

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

2. Dimension (A) is 34.5 mm (1.36 inch) and dimension (B) is 22.5 mm (0.89 inch). Dimension (A) and dimension (B) are tangent to the cylinder bore.

3. Position rod (2) within dimension (C). Dimension (C) is 14 mm (0.6 inch).

3054 and 3056 Engines

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

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

2. Dimension (A) is 33 mm (1.3 inch) and dimension (B) is 21 mm (0.8 inch). Dimension (A) and dimension (B) are tangent to the cylinder bore.

3. Position rod (2) within dimension (C). Dimension (C) is 14 mm (0.6 inch).

(3) Cylinder block