POWER UNIT 6-55
SELECTION OF MAIN BEARING
Whenever a bearing requires replacement, select a new bear-
ing according to following procedure.
1. First, check journal diameter.
As shown in figure, upper (flywheel side) crank web of No.1
cylinder has five (5) stamped code numerals.
The numerals (1, 2 & 3) represent journal diameters shown
below.
2. Next, check bearing holder inside diameter without bear-
ing.
As shown in figure, PORT side of cylinder block has five (5)
stamped codes letters.
The letters (A, B & C) represent bearing holder inside diam-
eters shown below.
Numeral stamped Journal diameter
1
58.006 – 58.012 mm
(2.2837 – 2.2839 in.)
2
58.000 – 58.006 mm
(2.2835 – 2.2837 in.)
3
57.994 – 58.000 mm
(2.2832 – 2.2835 in.)
Code
Crank bearing holder inside
diameter ( w / o bearing )
A
62.000 – 62.006 mm
(2.4409 – 2.4412 in.)
B
62.006 – 62.012 mm
(2.4412 – 2.4414 in.)
C
62.012 – 62.018 mm
(2.4414 – 2.4417 in.)
No.1 Journal code
No.2 Journal code
No.3 Journal code
No.4 Journal code
No.5 Journal code
No.5 Holder code
No.4 Holder code
No.3 Holder code
No.2 Holder code
No.1 Holder code
Flywheel side
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