PISTON AND CONNECTING ROD INSPECTION

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1. Check the oscillation torque as shown in the figure. Verify that the large end drops under its own weightwith no resistance.

  Semi-floating type piston pin

  • If the piston shakes heavily or unsmoothly, replace the piston, piston pin, piston ring and connecting rod as a single unit.

  Full floating type piston pin

  • If the piston shakes heavily or unsmoothly, disassemble the piston and connecting rod, replace the piston and snap ring, piston pin, then inspect the inner diameter of the connecting rod at the small end. (See CONNECTING ROD INSPECTION.)
    ― If there is any malfunction, replace the connecting rod.

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