Honda BF135A Manual page 458

b. CRANKSHAFT MAIN BEARING
NOTICE
• When replacing the main bearing, check the crankshaft main
journal code number and the cylinder block I.D. code letter or
number, and select the correct bearing by referring to the
bearing selection table.
• If the code letter and/or number is not clear, clean the area
with a cleaning solvent and check again. Do not scrub with a
stiff wire brush or driver to clean.
1) Check the cylinder block I.D. code letters or numbers and
record them.
NOTICE
The cylinder block I.D. code letters or numbers are for the
No.1 and the subsequent number journals when viewed
from the left side.
Cylinder block I.D.: 59 mm (2.3 in)
Code No.
1 or A or l ±0.000 – +0.006 mm (±0.0000 – +0.0002 in)
2 or B or ll +0.006 – +0.012 mm (+0.0002 – +0.0005 in)
3 or C or lll +0.012 – +0.018 mm (+0.0005 – +0.0007 in)
4 or D or llll +0.018 – +0.024 mm (+0.0007 – +0.0009 in)
2) Check the crankshaft main journal code numbers and
record them.
NOTICE
The crankshaft main journal code numbers are for the No.1
and the subsequent number journals when viewed from
the right side of the position shown or from the crankshaft
pulley side.
3) Select the correct bearing by referring to the cylinder block
I.D. code letter or number and the crankshaft main journal
code number.
13-17
Tolerance
[2]
[3]
NO.1 MAIN
NO.5 MAIN
JOURNAL
JOURNAL
[1] CRANKSHAFT
MAIN JOURNAL
CODE NUMBER
[2] [3] [4]
No.1 No.2 No.3
[6]
No.5
[1]
CYLINDER BLOCK I.D.
CODE LETTER OR
NUMBER
[5] [6]
No.4 No.5
[1] CRANKSHAFT
MAIN JOURNAL
CODE NUMBER
[2]
No.1