BRP Johnson J30TEL4SUA 2007 Service Manual page 165

The starboard side of the cylinder block has four
(4) stamped code letters. The letters A, B, and C
represent the following bearing holder inside
diameter shown below.
Crankshaft Bearing Holder Diameter
Code (without bearing)
1.7323 to 1.7325 in.
A
(44.000 to 40.006 mm)
1.7325 to 1.7328 in.
B
(40.006 to 40.012 mm)
1.7328 to 1.7330 in.
C
(40.012 to 40.018 mm)
5
1. No. 1 holder code
2. No. 2 holder code
3. No. 3 holder code
4. No. 4 holder code
5. Cylinder head (flywheel side)
•
There are five main bearing available, each of a
different thickness. To distinguish between
them, a color mark is painted at the midpoint on
the rim of the bearing. Each color represents
PISTON, CYLINDER, AND CRANKSHAFT
the following thickness (measured at the center
of the bearing).
Color
Mark
Green
Black
No color
Yellow
Blue
4
3
2
1
001577
1. Color mark
•
Select the correct crankshaft main bearing.
Refer to the following table.
Holder
Code
A Green
B Black
C No color
•
Measure the crankshaft journal oil clearance
again after selecting and installing the new
bearing.
POWERHEAD
Bearing Thickness
0.0768 to 0.0787 in.
(1.996 to 2.000 mm)
0.0787 to 0.0789 in.
(1.999 to 2.003 mm)
0.0788 to 0.0790 in.
(2.002 to 2.006 mm)
0.0789 to 0.0791 in.
(2.005 to 2.009 mm)
0.0791 to 0.0792 in.
(2.008 to 2.012 mm)
Journal Code
1 2
Black No color
No color
Yellow
7
1
001578
3
Yellow
Blue
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