Nissan 100NX N14 silhouetteN14

CYLINDER BLOCK - Assembly (Cont'd)

EM-193prose procedure
Continued from EM-192

Assembly (Cont'd)

CRANKSHAFT

Crankshaft Assembly

  1. 1
    Set main bearings in the proper position on cylinder block.
    If either crankshaft, cylinder block or main bearing is reused, it is necessary to measure main bearing clearance.
    a. Only center bearing (No. 3) is a flanged type.
    b. All inter-bearings (No. 2 and No. 4) are the same type.
    c. Front bearing (No. 1) is also the same type as rear bearing (No. 5).
    d. Upper and lower bearings are not interchangeable. Upper ones have oil groove.
    Main bearing identification diagram showing No. 1 & No. 5 bearing, center bearing (No. 3, flanged type), and No. 2 & No. 4 bearing. Labels indicate which bearings are the same type.
    SEM567
  2. 2
    Apply engine oil to main bearing surfaces on both sides of cylinder block and cap.
  3. 3
    Install crankshaft and main bearing caps and tighten bolts to the specified torque.
    Tighten in two or three stages.
    After securing bearing cap bolts, ascertain that crankshaft turns smoothly by hand.
    Tighten in numerical order.
    Main bearing cap bolt tightening sequence diagram showing block bottom with bolts numbered 1 through 10. Label 'Tighten in numerical order.'
    SEM569
  4. 4
    Make sure that there exists proper end play of crankshaft at center bearing.
    Checking crankshaft free end play (axial play) at center bearing using a measuring tool against the crankshaft.
    EM161
  5. 5
    Install pistons with connecting rods. (1) Install them into corresponding cylinder using Tool.
    Be careful not to scratch cylinder wall with connecting rod.
    Apply engine oil to cylinder wall, piston and bearing.
    Arrange so that the front mark on piston head faces to the front of engine.
    (2) Install connecting rod bearing caps.
    Installing piston with connecting rod into the cylinder bore using a piston ring compressor tool.
    SEM571
Crankshaft free end play - Standard(0.0020 - 0.0065 in)
0.05 - 0.165mm
Crankshaft free end play - Limit(0.0118 in)
0.30mm
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