TM 5-3805-255-14
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CLEANING AND INSPECTION CONTINUED
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5. Wash piston cooling jets in an oil solvent and dry thoroughly with compressed air. Be sure that oil passage in
body and tube is open and clean. Discard sealing O-rings if they show any signs of damage.
END OF TASK
INSTALLATION
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NOTE
If parts are being reused, precaution must be taken to see that parts are reinstalled in
cylinder from which they were removed.
1. Install connecting rod (Figure 10, Item 5) on piston (Figure 10, Item 4), aligning pin bore in rod with pin bore in
piston.
2. Lubricate piston pin (Figure 10, Item 3) with clean engine oil (WP 0131) and install piston pin through piston
(Figure 10, Item 4), connecting rod (Figure 10, Item 5) and opposite end of piston.
3. Use snap ring pliers to install two new piston pin retaining rings (Figure 10, Item 2), one in bore in each side of
piston (Figure 10, Item 4).
4. Use a piston ring expander to install three piston rings (Figure 10, Item 1) into lands of piston, (Figure 10, Item
4) starting with oil control ring first. Stagger ring end gaps so that they do not line up in same spot on piston.
Figure 10. Piston Installation.
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