Piston Cooling Orifices
Usage:
Remove & Install Piston Cooling Orifices
Start By:
a. remove crankshaft
NOTE: The No. 2 and 6 main bearing bosses each have two orifices. The No. 3 and 5 main bearing bosses each have one orifice. A replacement is necessary only if they are damaged. Normally it will only be necessary to be sure the orifices are clean.
1. Use a soft punch to remove the orifices from the cylinder block.
2. Use Tool (A) to install piston cooling orifice (1) (small end first). Install the orifices in main bearing bosses until they are against the counterbore.
3. Make sure that the passage is open after the piston cooling orifice is installed.
End By:
a. install crankshaft
Caterpillar Information System:
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