SERVICE MANUALCONNECTING RODS, PISTONS, RINGS & SLEEVESSection 5e.Place micrometer over gauge pins and takereading across the diameter of piston(widest point through piston center) [Referto Figure 20]. Record measurement.f.Refer to Service Specification Chart forpiston ring groove widths to determine ifpiston may continue to be used in service.g.If measurement over gauge pins is not within specifications, indicating excessive pistongroove wear, replace old pistons and ringswith new.Figure 17. - Piston IdentificationCGES- 185-3PRINTED IN UNITED STATES OF AMERICAPage 18
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