Toyota Workshop Service and Repair Manuals

Crankshaft Main Bearing: Specifications

Main Bearing Dimensions

Main Bearing Bolt:

Outside Diameter:

Standard.......................................................................................................................................................  10.76 - 10.97 mm (0.4236 - 0.4319 inch)
Maximum ...............................................................................................................................................................................  10.40 mm (0.4094 inch)

Main Bearing Cap To Cylinder Block:

Torque:

1st Pass ...........................................................................................................................................................................................  39 Nm (29 ft. lbs.)
2nd Pass ........................................................................................................................................................................................  Turn additional 90°

Main Bearing Clearance:

Standard:

No. 3 ............................................................................................................................................................  0.030 - 0.055 mm (0.0012 - 0.0022 inch)
Others ..........................................................................................................................................................  0.024 - 0.049 mm (0.0009 - 0.0019 inch)

U/S 0.25

No. 3 ............................................................................................................................................................  0.030 - 0.070 mm (0.0012 - 0.0028 inch)
Others ..........................................................................................................................................................  0.025 - 0.065 mm (0.0010 - 0.0026 inch)

Maximum .......................................................................................................................................................................................  0.10 mm (0.0039 inch)

NOTE:  If using a standard bearing, replace with one having the same number as marked on the block. There are 3 sizes of standard bearings, marked
"1" "2" and "3" accordingly.

Cylinder Block Main Journal Bore Diameter:

Standard:

Mark "1" .................................................................................................................................................  64.004 - 64.010 mm (2.5198 - 2.5201 inch)
Mark "2" .................................................................................................................................................  64.011 - 64.016 mm (2.5201 - 2.5203 inch)
Mark "3" .................................................................................................................................................  64.017 - 64.022 mm (2.5203 - 2.5205 inch)

U/S 0.25 ........................................................................................................................................................  64.000 - 64.024 mm (2.5197 - 2.5206 inch)

Crankshaft Journal Diameter:

Standard:

No.3 .........................................................................................................................................................  59.981 - 59.994 mm (2.2615 - 2.3620 inch)
Others ......................................................................................................................................................  59.987 - 60.000 mm (2.3617 - 2.3622 inch)

U/S 0.25:

No.359.740 - 59.750 mm (2.3520 - 2.3524 inch)
Others ......................................................................................................................................................  59.745 - 59.755 mm (2.3522 - 2.3526 inch)

Bearing Center Wall Thickness:

Standard:

Mark "1" .....................................................................................................................................................  1.987 - 1.990 mm (0.0782 - 0.0783 inch)
Mark "2" .....................................................................................................................................................  1.991 - 1.993 mm (0.0784 - 0.0785 inch)
Mark "3" .....................................................................................................................................................  1.994 - 1.996 mm (0.0785 - 0.0786 inch)

U/S 0.25 ............................................................................................................................................................  2.106 - 2.112 mm (0.0829 - 0.0831 inch)