Honda BF40D - Bearing Selection

10-16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
3. BEARING SELECTION
a. CONNECTING ROD BEARING
When replacing the connecting rod bearing, check the crank
pin code letter and the connecting rod code 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 brush or screwdriver to clean.
1) Check each crank pin code letter in the position shown and
record them.
Crank pin O.D.: 38 mm (1.5 in)
2) Check each connecting rod code number in the position
shown and record them.
Connecting rod big end I.D.: 41 mm (1.6 in)
3) Select the correct bearing by referring to the crank pin code
letter and the connecting rod code number.
[1]
CONNECTING ROD CODE NUMBER
(No.1 journal and the subsequent numbers
viewed from the alternator rotor side)
[5]
CRANK PIN CODE LETTER
(No.1 journal and the subsequent
numbers viewed from the left side)
[7]
No.1 CRANK
PIN
[6]
No.3
CRANK PIN
[1]
No.1 journal and the subsequent numbers
viewed from the alternator rotor side.
Code
Tolerance
number
1 0.000
-
+0.006 mm ( 0.0000 - +0.0002 in)
2 +0.006 - +0.012 mm (+0.0002 - +0.0005 in)
3 +0.012 - +0.018 mm (+0.0005 - +0.0007 in)
4 +0.018
- +0.024 mm (+0.0007 - +0.0009 in)
Code
Tolerance
letter
D - 0.024 - - 0.018 mm ( - 0.0009 - - 0.0007 in)
C - 0.018 - - 0.012 mm ( - 0.0007 - - 0.0005 in)
B - 0.012 -
- 0.006 mm ( - 0.0005 - - 0.0002 in)
A
- 0.006 - 0.000 mm ( - 0.0002 - 0.0000 in)
[2]
No.3
[3]
No.2
[4]
No.1
194