10-13
Remove the piston pin retainer from each side, heat
the piston to 300
°F (149°C) and push the piston pin
out. Remove dirt and deposits from the piston sur-
faces with parts cleaning solvent. Clean the piston
ring grooves with a groove cleaner (Figure 10-23) or
the end of a piston ring filed to a sharp point. Care
must be taken not to remove metal from the groove
sides.
CAUTION
Using caustic cleaning solvent or
wire brush for cleaning pistons will damage pis-
ton. Use parts cleaning solvent only. When
cleaning the connecting rod in solvent, include
the rod bore. Blow out all passages with low
pressure compressed air.
Piston and Connecting Rod Inspection
Piston Inspection:
Inspect the piston for fractures
at the ring lands, skirt, and pin bosses. Check for
wear at the ring lands using a new ring and feeler
gauge as shown in Figure 10-24. Replace the pis-
ton when the side clearance of the rings exceed the
specified limit.
CT1060s
FIGURE 10-23. CLEANING RING GROOVES
CT1061s
FIGURE 10-24. CHECKING RING LAND
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