Tighten connecting rod bolts - AR03.10-P-6111-02AMG
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MODIFICATION NOTES
| 3.2.12 | Value modified: Connecting rod bearing cap on the connecting rod, Stage 3 | *BA03.10-P-1001-01Q |
CONNECTING ROD
| Number | Designation | Engine 156 | ||
|---|---|---|---|---|
| BA03.10-P-1001-01Q | Connecting rod bearing cap on connecting rod | Stage 1 | Nm | 10 |
| Stage 2 | Nm | 40 | ||
| Stage 3 | ∠° | 90 |
Do not use impact wrench or compressed air tool to screw in otherwise the threaded holes will be damaged.
Connecting rod bolts must
be replaced.
The previously installed connecting rod bolts must not be used again otherwise loosening can occur and associated engine damage can occur.
- Lubricate the bolt thread and head contact surface with engine oil.
- Tighten connecting rod bolts.
Observe the tightening specification and tightening torque.
If no angle tightener is available, continue turning the connecting rod bolts to the specified angle using a socket wrench and locking handle. Do not use a flexi-rod torque wrench for tightening in order to avoid any angle errors.
| Tightening specification | Stages (per connecting rod) | |
|---|---|---|
| 1 | Alternate tightening of connecting rod bolts | Stage 1 |
| 2 | Alternate further tightening of connecting rod bolts | Stage 2 |
| 3 | Alternate tightening of connecting rod bolts as per tightening angle | Stage 3 |
| 4 | Alternate loosening of connecting rod bolts | Stage 4 |
| 5 | Alternate tightening of connecting rod bolts | Stage 5 |
| 6 | Alternate further tightening of connecting rod bolts | Stage 6 |
| 7 | Alternate tightening of connecting rod bolts as per tightening angle | Stage 7 |