CONNECTING ROD BEARING

Unit: mm (in)
Grade number
Thickness 
Identification color
Remarks
0
1.500 - 1.503 (0.0591 - 0.0592)
Black
Grade is the same for upper and lower bearings.
1
1.503 - 1.506 (0.0592 - 0.0593)
Brown
2
1.506 ‐ 1.509 (0.0593 ‐ 0.0594)
Green
3
1.509 ‐ 1.512 (0.0594 ‐ 0.0595)
Yellow
4
1.512 ‐ 1.515 (0.0595 ‐ 0.0596)
Blue
01
UPR
1.503 - 1.506 (0.0592 - 0.0593)
Brown
Grade and color are different for upper and lower bearings
LWR
1.500 - 1.503 (0.0591 - 0.0592)
Black
12
UPR
1.506 ‐ 1.509 (0.0593 ‐ 0.0594)
Green
LWR
1.503 - 1.506 (0.0592 - 0.0593)
Brown
23
UPR
1.509 ‐ 1.512 (0.0594 ‐ 0.0595)
Yellow
LWR
1.506 ‐ 1.509 (0.0593 ‐ 0.0594)
Green
34
UPR
1.512 ‐ 1.515 (0.0595 ‐ 0.0596)
Blue
LWR
1.509 ‐ 1.512 (0.0594 ‐ 0.0595)
Yellow

 
 UNDERSIZE

Unit: mm (in)
Items
Thickness
Crank pin journal diameter
0.25 (0.0098)
1.629 - 1.637 (0.0641 - 0.0644)
Grind so that bearing clearance is the specified value.

 
 CONNECTING ROD BEARING OIL CLEARANCE

Unit: mm (in)
Items
Standard
Limit
Connecting rod bearing oil clearance
0.055 - 0.068 (0.0022 - 0.0027)*
0.088 (0.0035)
*: Actual clearance