Piston and Connecting Rod - Installation

INSTALLATION










NOTE: Refer to the connecting rod Description before beginning repair. Description and Operation .

1. Before installing pistons and connecting rod assemblies into the bore, ensure that compression ring gaps (2,5) are staggered so that neither is in line with oil ring rail gap (1,4).










2. Before installing pistons and connecting rod assemblies into the bore, ensure that the arrow (1) on top of the piston is facing the front of the engine, if equipped.










3. Lubricate the piston (1) and rings with clean engine oil. Position a ring compressor (2) over the piston and rings, and tighten the compressor (2). Be sure position of rings does not change during this operation.
4. Position upper bearing onto connecting rod. Lubricate bearing with oil.
5. Install Guide Pins 8189 (3) on the connecting rod.










6. The pistons are marked with an arrow (1) on top of the piston. Install piston with this mark positioned to front of engine on both cylinder banks.










7. The connecting rod oil squirt hole (2) faces the major thrust (right) side of the engine block (1).










8. Rotate crankshaft until the connecting rod journal is located in the center of the cylinder bore. Insert connecting rod and piston into cylinder bore by tapping down on the piston (1) using a hammer handle. At the same time, guide connecting rod (4) into position on connecting rod journal.
9. Install lower bearing shell and the appropriate connecting rod cap.
10. Install connecting rod bolts and tighten to 7 Nm (5 ft. lbs) initially. Tighten the bolts an additional 21 Nm (15 ft. lbs.) and then turn each bolt 90° to final clamping load.
11. Repeat procedure for each piston and connecting rod installation.
12. Install the cylinder heads Cylinder Head - Installation
13. Install the oil pan Engine Oil Pan - Installation
14. Fill engine crankcase with proper oil to correct level Service and Repair.
15. Connect negative cable to battery.