Crankshaft Main Bearing

MAIN BEARING CAP
(a) Apply engine oil to the upper bearing, then place the crankshaft on the cylinder block.





(b) Install the 5 crankshaft bearing caps in their proper locations.





(c) Install the crankshaft bearing cap bolts.

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

(d) Step 1
(1) Install and uniformly tighten the 10 main bearing cap bolts in the sequence shown in the illustration.
Torque: 39 Nm (398 kgf-cm, 29 ft-lbf)

If any of the main bearing cap bolts does not meet the torque specification, replace the main bearing cap bolt.





(e) Step 2
(1) Mark the front of the bearing cap bolts with paint.
(2) Retighten the bearing cap bolts by 90° in the order above.
(3) Check that the painted mark is now at a 90° angle to the front.
(f) Check that the crankshaft turns smoothly.
(g) Check the crankshaft thrust clearance.


CRANKSHAFT










CRANKSHAFT TIMING GEAR OR SPROCKET

Minimum distance 1.0 mm (0.039 in.)

Minimum sprocket diameter (with chain) 59.4 mm (2.338 in.)

NO. 2 CRANKSHAFT TIMING SPROCKET

Minimum sprocket diameter (with chain) 96.7 mm (3.807 in.)

CRANKSHAFT BEARING CAP SET BOLT

Standard diameter 10.76 to 10.97 mm (0.4236 to 0.4319 in.)
Minimum diameter 10.66 mm (0.4197 in.)

Each bearing's standard thickness is indicated by a 1, 2 or 3 mark on its
surface.

Reference:

Cylinder block main journal bore diameter






Standard bearing center wall thickness