Dodge Dakota Sport 2001 Service Manual page 1066

AN
CRANKSHAFT MAIN BEARINGS (Continued)
Crankshaft Journals #1 - #4
0.0381
mm
(0.0015
in.)
Undersize
Red 63.2485 -
63.2358
mm
(2.4901 -
2.4896
in.)
0.254
mm
(0.010
in.)
Undersize
Crankshaft Journal #5 Only
Color Diameter
Code
Yellow 63.4873 -
63.4746
mm
(2.4995 -
2.4990
in.)
Orange 63.4746 -
63.4619
mm
(2.4990 -
2.4985
in.)
0.0127
mm
(0.0005
in.)
Undersize
Blue 63.4619 -
63.4492
mm
(2.4985 -
2.4980
in.)
Red - Red -
Undersize Undersize
0.254 mm 0.254 mm
(0.010 in.) (0.010 in.)
Upper Lower Insert
Insert
Size Size
Yellow - Yellow -
Standard Standard
Blue - Yellow -
Undersize Standard
0.025 mm
(0.001 in.)
Blue - Blue -
Undersize Undersize
0.025 mm 0.025 mm
(0.001 in.) (0.001 in.)
Crankshaft Journals #1 - #4
0.0254
mm
(0.001
in.)
Undersize
Green 63.4492 -
63.4365
mm
(2.4980 -
2.4975
in.)
0.0381
mm
(0.0015
in.)
Undersize
Red 63.2333 -
63.2206
mm
(2.4895 -
2.4890
in.)
0.254
mm
(0.010
in.)
MEASURING BEARING-TO-JOURNAL CLEARANCE
(CRANKSHAFT INSTALLED)
When using Plastigage, check only one bearing
clearance at a time.
Install the grooved main bearings into the cylinder
block and the non-grooved bearings into the bearing
caps.
Install the crankshaft into the upper bearings dry.
Place a strip of Plastigage across full width of the
crankshaft journal to be checked.
Install the bearing cap and tighten the bolts to 108
N·m (80 ft. lbs.) torque.
NOTE: DO NOT rotate the crankshaft. This will
cause the Plastigage to shift, resulting in an inaccu-
rate reading. Plastigage must not be permitted to
crumble. If brittle, obtain fresh stock.
Remove the bearing cap. Determine the amount of
clearance by measuring the width of the compressed
Plastigage with the scale on the Plastigage envelope
ENGINE 2.5L 9 - 37
Blue - Green -
Undersize Undersize
0.025 mm 0.051 mm
(0.001 in.) (0.002 in.)
Red - Red -
Undersize Undersize
0.254 mm 0.254 mm
(0.010 in.) (0.010 in.)