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Inspection: Mitsubishi 6M70 Clearance between piston
ring and piston ring groove
• Remove any carbon deposits from the ring groove in the piston.
• Measure the side clearance of each ring around the piston’s en-
tire periphery of the ring groove.
• If the measurement exceeds the limit, replace the defective
part(s). If any of the piston rings is defective, replace all the pis-
ton rings as a set.
• The clearance of the 1st compression ring must be measured
using a thickness gauge while holding the ring against the piston
ring groove with a straight edge.
Inspection: Clearance between piston pin and piston
• If the measurement exceeds the limit, replace the defective
part(s).
Inspection: Mitsubishi 6M70 Clearance between piston
pin and connecting rod bushing
• If the measurement exceeds the limit, replace the bushing.
Replacement of connecting rod bushing
• Replace the connecting rod bushing using .
PISTON, CONNECTING ROD AND CYLINDER LINER
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