Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Piston and Connecting Rod Inspection

PISTON AND CONNECTING ROD INSPECTION
1. Check the oscillation torque as shown in the figure. Verify that the large end drops under its own weight with no resistance.
^ 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.