Assembly

PISTON






1. Install new snap ring on one side of piston pin hole.






2. Heat piston to 60 to 70° C (140 to 158° F) and assemble piston, piston pin, connecting rod and new snap ring. Align the direction of piston and connecting rod.
- Numbers stamped on connecting rod and cap correspond to each cylinder. After assembly, make sure connecting rod swings smoothly.











3. Set piston rings as shown

CAUTION:
- When piston rings are not replaced, make sure that piston rings are mounted in their original position.
- Install new piston rings either side up if there is no punch mark.
- Align piston rings so that end gaps are positioned as shown.

CRANKSHAFT











1. Set main bearings in their proper positions on cylinder block and main bearing cap.
- Confirm that correct main bearings are selected by using Method A or Method B.
- Apply new engine oil to bearing surfaces.






2. Install crankshaft and main bearing caps and tighten bolts to the specified torque. Crankshaft Main Bearing Specifications
- Apply new engine oil to the bolt thread and seat surface.
- Prior to tightening bearing cap bolts, shift crankshaft back and forth to properly seat the bearing caps.
- Tighten bearing cap bolts gradually in two or three stages. Start with center bearing and move outward as shown in figure.
- After securing bearing cap bolts, make sure crankshaft turns smoothly by hand.






3. Measure crankshaft end play.
Crankshaft end play:
Standard: 0.060 - 0.180 mm (0.0024 - 0.0071 inch)
Limit: 0.3 mm (0.012 inch)

If beyond the limit, replace thrust bearings with new ones.






4. Install connecting rod bearings in connecting rods and connecting rod caps.
- Confirm that correct bearings are used.
- Install bearings so that oil hole in connecting rod aligns with oil hole of bearing.
- Apply new engine oil to bolt threads and bearing surfaces.











5. Install pistons with connecting rods.
a. Install them into corresponding cylinders with Tool.
- Make sure connecting rod does not scratch cylinder wall.
- Make sure connecting rod bolts do not scratch crankshaft pin journals.
- Arrange so that front mark on piston head faces engine.
- Apply new engine oil to piston rings and sliding surface of piston.
b. Install connecting rod caps.
Apply new engine oil to bolt threads and nut seating surfaces.
Tighten connecting rod cap nuts in the following procedure:

1. Tighten to 13.72 to 15.68 Nm (1.399 to 1.599 kg-m, 10.120 - 11.566 ft. lbs.).
2. Turn nuts to 35° to 40° degrees clockwise with an angle wrench. If an angle wrench is not available, tighten nuts to 23 to 28 Nm (2.3 to 2.9 kg-m, 17 to 21 ft. lbs.).






6. Measure connecting rod side clearance.

Connecting rod side clearance:
Standard: 0.200 - 0.470 mm (0.0079 - 0.0185 inch)
Limit: 0.50 mm (0.0197 inch)

If beyond the limit, replace connecting rod and/or crankshaft.






7. Install rear oil seal retainer
a. Before installing rear oil seal retainer, remove old liquid gasket from cylinder block and retainer.
b. Apply a continuous bead of liquid gasket to rear on seal retainer.
- Use Nissan Genuine RTV silicone sealant Part No. 999MP-A7007, Three Bond TB1207D or equivalent.
- Apply around inner side of bolt holes.