Replacing the main bearing shells and the guide bearing shells
NOTE:
RISK OF DAMAGE
Engine damage caused by incorrectly installed bearing shells and bearing brackets.
If the bearing shells and bearing brackets are installed incorrectly, then engine damage can occur.
Engine damage caused by incorrectly installed bearing shells and bearing brackets.
If the bearing shells and bearing brackets are installed incorrectly, then engine damage can occur.
- Always install all bearing shells and bearing brackets in the same position from which they were removed.
NOTE:
TECHNICAL INFORMATION
The main bearing shells and guide bearing shells are classified by numbers.
Observe the classification of the main and guide bearing shells.
The main bearing shells and guide bearing shells are classified by numbers.
Observe the classification of the main and guide bearing shells.
- Remove the main bearing shells with lubricating groove (1) to (3) and (5) to (7) from the crankcase.
- Remove the guide bearing shell with lubricating groove (4) from the crankcase.
- Remove the main bearing shells (1) to (3) and (5) to (7) from the crankshaft bearing caps.
- Remove the guide bearing shell (4) from the crankshaft bearing cap.
- Make sure that the correct classification (arrows) is installed.
- Replace main bearing shells (1 ) with
lubricating groove. Parts:
Main bearing shells with lubricating groove
- Make sure that the correct classification (arrows) is installed.
- Replace main bearing shells (1) without lubricating groove.
Parts: Main bearing shells without lubricating groove
- Make sure that the correct classification (arrows) is installed.
- Replace the guide bearing shell with
lubricating groove (1) and the guide bearing shell (2) without
lubricating groove.
Parts: Guide bearing shells
- Make sure the crankshaft main bearing shell (1) is correctly installed with the guide lug in the highlighted
area.
- Make sure the crankshaft guide shell (1) is correctly installed with the guide lug in the highlighted
area.
- Make sure the crankshaft main bearing shell (1) is correctly installed with the guide lug in the highlighted
area.
- Make sure the crankshaft guide shell (1) is correctly installed with the guide lug in the highlighted
area.
- Install the main bearing shells (1) to (3) and (5) to (7) in the crankshaft bearing cap.
- Install the guide bearing shell (4) in the crankshaft bearing cap.
- Oil all main bearing shells and guide bearing shells (1) to (7).
- Install main bearing shells with lubricating groove (1) to (3) and (5) to (7) in the crankcase.
- Install the guide bearing shell with lubricating groove (4) in the crankcase.
- Oil all main bearing shells and guide bearing shells with lubricating groove (1) to (7).
