Connecting rod small end bush - replace
- Make
- Fiat
- Model
- Doblò Factory Service Manual
- Year
- 2000–2010
- Section
- Pistons and connecting rods › Connecting rod small end bush - replace
Connecting rod small end bush - replace
Dismantling
Position the connecting rod under a suitable press.
1. Remove the small end bush using a suitable drift.
| Name | Country | |
|---|---|---|
| 1 | Drift | 1.860.054.000 |
1. Remove the bush (1a) from the small end using a hydraulic press, a suitable plate (1b) and the tool (1c) constructed as shown in the diagram.
| Name | Country | |
|---|---|---|
| 1c | Tool for Extracting/Fitting | 1.860.821.001 |
Dismantling
1. Remove the bush (1a) from the small end using a hydraulic press, a suitable plate (1b) and the tool (1c) constructed as shown in the diagram.
| Name | Country | |
|---|---|---|
| 1c | Tool for Extracting/Fitting | 1.860.821.001 |
Reassembling
Check that the diameter of the small end is within the recommended limits or else the connecting rod has to be replaced.
| Measurement | Value | ||
|---|---|---|---|
| Small end diameter (mm) | 23.939 - 23.972 |
Check the outer diameter of the new small end bush also making sure that the clearance between the bush and the small end is within the recommended values.
| Measurement | Value | ||
|---|---|---|---|
| Small end bush external diameter (mm) | 24.016 - 24.041 |
| Measurement | Value | ||
|---|---|---|---|
| Interference between small end bush and housing (mm) | 0.044 - 0.102 |
Position the connecting rod under a press again.
1. Using the drift (1a), fit the new bush (1b), taking care to ensure that the lubrication port (1c) in the bush coincides with the one (1d) in the connecting rod.
1. Fit a new bush (1a) in the small end using a hydraulic press, a suitable plate (1b) and the tool (1c) constructed as shown in the diagram.
The bush is fitted in the small end so that the lubrication port in it is aligned with the one in the small end.
| Name | Country | |
|---|---|---|
| 1c | Tool for Extracting/Fitting | 1.860.821.001 |
Reassembling
1. Fit a new bush (1a) in the small end using a hydraulic press, a suitable plate (1b) and the tool (1c) constructed as shown in the diagram.
The bush is fitted in the small end so that the lubrication port in it is aligned with the one in the small end.
| Name | Country | |
|---|---|---|
| 1c | Tool for Extracting/Fitting | 1.860.821.001 |
Reface the bush fitted previously using a suitable reamer, making sure that internal diameter of the bush is within the maximum permissible vaule.
| Measurement | Value | ||
|---|---|---|---|
| Maximum permissible bush internal diameter after reaming (mm) | 21.004÷21.009 |
Ream the inner diameter of the small end bush so that it corresponds to the recommended values.
| Measurement | Value | ||
|---|---|---|---|
| Small end bush inner diameter (mm) | 25.279 - 25.512 |
Ream the inner diameter of the small end bush so that it corresponds to the recommended values.
| Measurement | Value | ||
|---|---|---|---|
| Inner diameter (mm) | 26.006 - 26.012 |
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