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Home >> Jeep >> 2007 >> Commander Base, 4.7 P, AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> 4.7L Engine (Service Information) >> Engine Block >> Rod-Piston & Connecting >> Inspection >> Piston And Connecting Rod
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Piston And Connecting Rod

Check the connecting rod journal for excessive wear, taper and scoring. See STANDARD PROCEDURE .

Check the connecting rod for signs of twist or bending.

Check the piston for taper and elliptical shape before it is fitted into the cylinder bore. See STANDARD PROCEDURE .

Check the piston for scoring, or scraping marks in the piston skirts. Check the ring lands for cracks and/or deterioration.