2. Before installing piston rings, or when installing new rings, check the clearance of each ring cut in its cylinder bore by pushing the ring with the piston down the bore as described in the previous Chapter. Measure the clearance between the ends of the piston ring using a feeler gauge. The clearance must be within the limits given in Specifications.
3. When installing piston rings, the word TOP on one side of the ring must face the piston head.
4. If there are doubts about the condition of the connecting rod bearings, they should be replaced with new ones when assembling the engine. Clean the connecting rods and caps completely, install the liners so that the tab on the insert fits into the recess in the connecting rod or cap, and the ends of the bearing are even with the parting surface.
5. Install pistons with piston ring gaps 120°apart. Liberally lubricate the rings and grooves, install the piston ring remover on the piston. Also generously lubricate the connecting rod bearings.
6. Rotate the engine so that the No. 1 connecting rod journal is at BDC.
7. Lubricate the cylinder bore, then insert the piston and connecting rod, arrow on the piston head towards the front end of the engine.
8. Using a hammer handle, gently hammer the piston through the compressor into the cylinder bore, guiding the connecting rod against the crankshaft journal.
9. Lubricate the bearing shell, then install the connecting rod lower bearing cap onto the connecting rod stands. Lubricate the contact surfaces and tighten the nuts. Tighten them first with a tightening torque regulated specification, then turn 90°further. Make sure the cover is properly oriented.
10. Rotate the crankshaft to check for free rotation.
11. Repeat the procedure given in steps 6-10 inclusive to install the remaining pistons and connecting rods.
12. Install the oil pump (Chapter 18), pallet (Chapter 16) and cylinder head (Chapter 12).
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