CRANK SHAFT & BLANCER SHAFT ASSY
🔧 Engine Bearing Selection Tool
Main Plain Bearing Selection Table
Select the main plain bearing according to crankshaft main bearing seat hole mark and main journal mark.
| Crankshaft Main Bearing Seat Hole Mark |
Crankshaft Main Journal Mark |
Main Plain Bearing (Upper & Lower) |
Center Wall Thickness [T] |
|---|---|---|---|
| 3 | 1 | Red | 1.994 ~ 1.997 mm |
| 3 | 2 | Red | 1.994 ~ 1.997 mm |
| 3 | 3 | Green | 1.991 ~ 1.994 mm |
| 2 | 1 | Red | 1.994 ~ 1.997 mm |
| 2 | 2 | Green | 1.991 ~ 1.994 mm |
| 2 | 3 | Black | 1.988 ~ 1.991 mm |
| 1 | 1 | Green | 1.991 ~ 1.994 mm |
| 1 | 2 | Black | 1.988 ~ 1.991 mm |
| 1 | 3 | Black | 1.988 ~ 1.991 mm |
NOTE: The upper main plain bearing has a lubrication groove and hole.
NOTE: The lower main plain bearing with lubrication groove is installed in the plain bearing seat on the CVT side of the lower crankcase.
NOTE: There is also a lower main plain bearing without lubrication groove.
Upper main plain bearingWith lubrication groove and hole
Lower main plain bearingNo lubrication groove
Lower main plain bearingWith lubrication groove (CVT side)
Balance Shaft Plain Bearing Selection Table
Select the balance shaft plain bearing according to seat hole mark and journal mark.
| Balance Shaft Bearing Seat Hole Mark |
Balance Shaft Journal Mark |
Balance Shaft Plain Bearing |
Center Wall Thickness [E] |
|---|---|---|---|
| A | 1 | Black | 1.488 ~ 1.492 mm |
| A | 2 | Red | 1.484 ~ 1.488 mm |
| B | 1 | Blue | 1.492 ~ 1.496 mm |
| B | 2 | Black | 1.488 ~ 1.492 mm |
NOTE: Always verify the actual measurements before installation.
NOTE: Ensure proper lubrication grooves are matched to the correct positions.
Bearing Specifications (New Part)
Main Plain Bearing (New Part)
| Color Mark | Center Wall Thickness [T] |
|---|---|
| Red | 1.994 ~ 1.997 mm (0.07550 ~ 0.07625 in) |
| Green | 1.991 ~ 1.994 mm (0.07839 ~ 0.07850 in) |
| Black | 1.988 ~ 1.991 mm (0.07827 ~ 0.07839 in) |
Balance Shaft Plain Bearing (New Part)
| Color Mark | Center Wall Thickness [E] |
|---|---|
| Blue | 1.492 ~ 1.496 mm (0.05874 ~ 0.05890 in) |
| Black | 1.488 ~ 1.492 mm (0.05858 ~ 0.05874 in) |
| Red | 1.484 ~ 1.488 mm (0.05843 ~ 0.05858 in) |
📖 Usage Guide:
- Identify the bearing seat hole mark on the engine block/crankcase
- Identify the journal mark on the crankshaft/balance shaft
- Based on the combination of the two marks, select the corresponding bearing color from the tables
- Refer to the specification table to confirm the wall thickness range
- Pay attention to the lubrication groove requirements for main bearings
Important: This tool is for reference only. Always perform actual measurements and follow the manufacturer's service manual during installation.
📍 Marks Location Reference Diagrams (Click image to enlarge)
Identify the exact marking positions on engine components. The following diagrams show typical locations for balance shaft marks, crankshaft journal marks, and cylinder block/crankcase seat marks. Images are arranged vertically for better clarity.
Crankshaft Main Journal Marks
Numbers 1, 2, 3 stamped on crankshaft counterweights or front journal face. Match with seat holes.
Cylinder Block / Crankcase Seat Marks
Seat hole marks (1,2,3 for main bearings; A/B for balance shaft). Located near bearing bore.
Balance Shaft Journal
Typical locations for marks 1/2 (journal).
🔎 Verification tips: Marks are often stamped or laser-etched. Clean the surface for clear reading. Use magnifying glass if needed.
🖱️ Click any image to enlarge — Images are displayed larger in vertical layout for better visibility.
×
![]()
If you are unable to find the corresponding parts for the catalog, please contact us.
| Image/No | Product | Price |
|---|---|---|
|
Lower Main Bearing Red
|
|
|
Lower Main Bearing Green
|
|
|
Lower Main Bearing Black
|
|
|
Upper Main Bearing Red
|
|
|
Upper Main Bearing Green
|
|
|
Upper Main Bearing Black
|
|
|
Balance Shaft Plain Bearing, Black
|
|
|
Balance Shaft Plain Bearing, Red
|
|
|
Balance Shaft Plain Bearing, Blue
|
|
|
Woodruff Key for Crankshaft
|
|
|
Upper / Lower Main Bearing Red
|
|
|
Upper / Lower Main Bearing Green
|
|
|
Upper / Lower Main Bearing Black
|
|
| 1 | MICF0NYV-041000-1000-Q0-00001 | |
| 1 | MICF0NYV-041000-1000-Q0-00002 | |
| 2 | MICF0NYV-160000-1000-Q0-00001 | |
| 2 | MICF0NYV-160000-1000-Q0-00002 | |
| 7 | MICF0NYV-040014-2000 | |
| 8 | MICF0NYV-040015-2000 | |