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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 (Refer to 9 - ENGINE/ENGINE Check the piston for scoring, or scraping marks in the piston skirts. Check the ring lands for cracks and/or INSTALLATION 1. Before installing piston and connecting rod assem- blies into the bore, install the piston rings. 2. Immerse the piston head and rings in clean engine oil. Position a ring compressor (3) over the piston 3. Position bearing onto connecting rod. Ensure that hole in bearing shell aligns with hole in connecting 4. Install Special Tool 8507 Connecting Rod Guides (4) into connecting rod bolt threads. HB ENGINE - 4.7L SERVICE INFORMATION 9 - 1271 |