id011000502500

1.Install the main bearing cap. (See CYLINDER BLOCK ASSEMBLY (I).)

2.Measure the crankshaft end play.

belbze00000110

• If it exceeds the specification, replace the thrust bearing or crankshaft so that the specified end play is obtained.

Crankshaft standard end play

0.22—0.45 mm {0.009—0.017 in}

Crankshaft maximum end play

0.55 mm {0.022 in}

3.Remove the main bearing cap. (See CYLINDER BLOCK DISASSEMBLY (II).)

4.Measure the crankshaft runout.

belbze00000111

• If it exceeds the specification, replace the crankshaft.

Maximum main journal runout

0.05 mm {0.001 in}

5.Measure the journal diameter in X and Y directions at the two points (A and B) as indicated in the figure.

• If it exceeds the specification, replace the crankshaft or grind the journal and install the undersize bearing.

belbze00000112

Main journal diameter

STD: 51.980—52.000 mm {2.0465—2.0472 in}

OS 0.25: 51.730—51.750 mm {2.0367—2.0374 in}

OS 0.50: 51.480—51.500 mm {2.0268—2.0275 in}

Maximum main journal off-round

0.005 mm {0.0001 in}

Crank pin diameter

STD: 51.980—52.000 mm {2.0465—2.0472 in}

OS 0.25: 51.730—51.750 mm {2.0367—2.0374 in}

OS 0.50: 51.480—51.500 mm {2.0268—2.0275 in}

Maximum crank pin off-round

0.005 mm {0.0001 in}

6.Install the main bearing caps and crankshaft. (See CYLINDER BLOCK ASSEMBLY (I).)

7.Position a plastigauge atop the journals in the axial direction.

8.Install the main bearing caps and cylinder block. (See CYLINDER BLOCK ASSEMBLY (I).)

9.Remove the main bearing caps. (See CYLINDER BLOCK DISASSEMBLY (II).)

10.Measure the main journal oil clearance.

• If it exceeds the specification, replace the main bearing using the main bearing selection table or grind the main journal and install the oversize bearings so that the specified oil clearance is obtained.

belbze00000113

Main journal standard oil clearance

0.016—0.046 mm {0.0007—0.0018 in}

Main journal maximum oil clearance

0.10 mm {0.0039 in}

Main bearing size (UPPER)

STD: 2.501—2.522 mm {0.0985—0.0992 in}

OS0.25: 2.623—2.629 mm {0.1033—0.1035 in}

OS0.50: 2.748—2.754 mm {0.1082—0.1084 in}

Main bearing size (LOWER)

STD: 2.501—2.529 mm {0.0985—0.0995 in}

OS0.25: 2.624—2.630 mm {0.1034—0.1035 in}

OS0.50: 2.749—2.755 mm {0.1083—0.1084 in}