Operation CHARM: Car repair manuals for everyone.

Crankshaft Main Bearing

CRANKSHAFT

Temporarily install the 10 main bearing cap bolts to the inside positions.

Insert the main bearing cap by hand until the clearance between the main bearing cap and cylinder block is less than 6 mm (0.236 in.) by marking the 2 internal bearing cap bolts as a guide.





Bolt length 91 mm (3.58 in.)

Temporarily install the 10 main bearing cap bolts to the outside positions.






Bolt length 79.5 mm (3.13 in.)

The main bearing cap bolts are tightened in 2 progressive steps.

Uniformly tighten the 20 main bearing cap bolts in the sequence shown in the illustration.






Inside Position

Torque 61 Nm (622 kgf-cm, 45 ft-lbf)

Outside Position

Torque 27 Nm (275 kgf-cm, 20 ft-lbf)

If any of the main bearing cap bolts do not meet the specified torque, replace it.

Mark the front of the bearing cap bolts with the paint.






Further tighten the cylinder head bolts 90° as shown in the illustration.
Check that the paint mark is now at a 90° angle from the front.

Install and uniformly tighten the 10 main bearing cap bolts and 10 new seal washers in several steps, in the sequence shown in the illustration.






Torque 45 Nm (459 kgf-cm, 33 ft-lbf)

MAIN BEARING CLEARANCE STANDARD AND LIMIT












MAIN BEARING SIZE CODES

There are 6 standard bearing sizes. For the No. 1 and No. 5 position bearings, use bearings marked 4, 5, 6, 7, 8 and 9. For other bearings, use bearings marked 3, 4, 5, 6, 7 and 8.






Example:

Cylinder block "07" + Crankshaft "06" = Total number 13 (Use upper bearing "6" and lower bearing "7")

A = Cylinder block number mark

B = Crankshaft number mark

Standard Bearing Center Wall Thickness:

No. 1 and No. 5 Journals






Other Journals: