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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Connecting Rod: Testing and Inspection






1. Connecting rod side clearance using a feeler gage with connecting rod fitted and connected to crankshaft. Connecting rod side clearance specification is 0.10 to 0.20 mm (0.0039 to 0.0078 inch). If the side clearance exceeds 0.35 mm (0.0137 inch), the connecting rod must be replaced.
2. Connecting rod alignment by mounting connecting rod on an aligner and measuring for bow and twist of the connecting rod. If the connecting rod bow is more than 0.05 mm (0.0020 inch) and/or twist is more than 0.10 mm (0.0039 inch), the connecting rod must be replaced.