Power Unit Mechanical: 1D-56
Selection of Conrod Bearing
Z9J0111406029
NOTE
• If bearing is in malfunction, or bearing
clearance is not in specification, select a
new standard bearing according to the
following procedure.
• When replacing crankshaft, conrod and its
bearing due to any reason, select a new
standard bearing to be installed by
referring to numbers stamped on conrod
and its cap and alphabets stamped on
crank web No.1.
1) Check stamped numbers on conrod and its cap as
shown.
Three kinds of number (“1”, “2” or “3”) represent the
conrod big end inside diameter.For example,
stamped number “1” indicates that corresponding its
big end inside diameter is 45.000 – 45.006 mm
(1.7717 – 1.7719 in.).
Conrod big end inside diameter
2) Next, check crankshaft pin outside diameter. On
crank web No.1, four alphabets are stamped as
shown in the figure.
Three kinds of alphabet (“A”, “B” or “C”) represent
the crankshaft pin diameter respectively. For
example, stamped “A” indicates that corresponding
crankshaft pin diameter is 41.994 – 42.000 mm
(1.6533 – 1.6535 in.).
Crankshaft pin outside diameter
3) There are five kinds of standard bearing differing in
thickness available. To distinguish them, they are
painted in four colors at the position indicated in the
figure.
Each color indicates the following thickness at the
center of bearing.
Size of conrod bearing thickness
Stamped No. Conrod big end inside diameter
1
45.0000 – 45.0060 mm
(1.7717 – 1.7719 in.)
2
45.0061 – 45.0120 mm
(1.7719 – 1.7721 in.)
3
45.0121 – 45.0180 mm
(1.7721 – 1.7723 in.)
“A”: Conrod big end inside dia. code
“A”
I9J011140266-01
Stamped
alphabet
Crank pin diameter
A
41.9940 – 42.0000 mm
(1.6533 – 1.6535 in.)
B
41.9880 – 41.9939 mm
(1.6531 – 1.6533 in.)
C
41.9820 – 41.9879 mm
(1.6528 – 1.6531 in.)
“B”: No.1 Crank pin dia. code “D”: No.3 Crank pin dia. code
“C”: No.2 Crank pin dia. code “E”: No.4 Crank pin dia. code
Color painted Bearing thickness
Blue
1.4990 – 1.5020 mm
(0.05901 – 0.05913 in.)
Yellow
1.4960 – 1.4990 mm
(0.05890 – 0.05901 in.)
Nothing
1.4930 – 1.4960 mm
(0.05878 – 0.05889 in.)
Black
1.4900 – 1.4930 mm
(0.05867 – 0.05877 in.)
Green
1.4870 – 1.4900 mm
(0.05854 – 0.05866 in.)
“C”
“D”
“E”
“B”
I9J011140267-01
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