Piston, pin set - replace
- Make
- Fiat
- Model
- Stilo Factory Service Manual
- Year
- 2001–2007
- Section
- Pistons and connecting rods › Piston, pin set - replace
Piston, pin set - replace
Dismantling
- 1028H54 piston/cylinder liner - r r
Dismantling
- 1028H54 piston/cylinder liner - r r
Dismantling
- 1028H54 piston/cylinder liner - r r, operation to be carried out on the entire set of pistons.
1. Using suitable pliers (1a), remove the circlips (1b) from the piston.
Dismantling
1. Remove the circlips.
2. Remove the pins (2a) and separate the connecting rods (2b) from the pistons (2c).
3. Remove the rings (3a) from the pistons using the tool (3b).
Dismantling
1. Remove the circlips.
2. Remove the pins (2a) and separate the connecting rods (2b) from the pistons (2c).
3. Remove the rings (3a) from the pistons using the tool (3b).
Dismantling
1. Remove the circlips.
2. Remove the pin (2a) and separate the connecting rods (2b) from the pistons (2c).
Dismantling
1. Remove the circlips.
2. Remove the pin (2a) and separate the connecting rod (2b) from the pistons (2c).
Reassembling
Clean the carbon residues from the piston crown.
Check that the difference in weight between the pistons is within the recommended values.
Slight maching in the areas shown in the diagram is permissible to equalize the weight.
| Measurement | Value | ||
|---|---|---|---|
| 1 | Piston weight difference (g.) | +- 5 |
Reassembling
Clean the carbon residues from the piston crown.
Check that the difference in weight between the pistons is within the recommended values.
Slight maching in the areas shown in the diagram is permissible to equalize the weight.
| Measurement | Value | ||
|---|---|---|---|
| Piston weight difference (g) | ± 5 |
Reassembling
Clean the carbon residues from the piston crown.
1. Check that the difference in weight between the pistons is within the recommended values.
2. Slight maching in the areas shown in the diagram is permissible to equalize the weight.
| Measurement | Value | ||
|---|---|---|---|
| 2 | Piston weight difference (g.) | +- 5 |
Reassembling
Check the alignment of the connecting rods using a suitable tool; if the connecting rod is not perfectly aligned, replace it.
Check that the difference in weight between the connecting rods, complete with bearing shells, caps and bolts, is within the recommended values.
The arrows in the diagram show the areas from where material can be removed in order to equalize the weight.
| Measurement | Value | ||
|---|---|---|---|
| Toe-in (mm) | -1.1 - 0.9 |
Check that the difference in weight between the pistons is within the recommended values.
The arrows in the diagram show the areas from where material can be removed in order to equalize the weight.
| Measurement | Value | ||
|---|---|---|---|
| Maximum permissible weight difference (g.) | 5 |
Reassembling
Check the alignment of the connecting rods using a suitable tool; if the connecting rod is not perfectly aligned, replace it.
Check that the difference in weight between the connecting rods, complete with bearing shells, caps and bolts, is within the recommended values.
The arrows in the diagram show the areas from where material can be removed in order to equalize the weight.
| Measurement | Value | ||
|---|---|---|---|
| Maximum permissible weight difference (g.) | 5 |
Check that the difference in weight between the pistons is within the recommended values.
The arrows in the diagram show the areas from where material can be removed in order to equalize the weight.
| Measurement | Value | ||
|---|---|---|---|
| Maximum permissible weight difference (g.) | 5 |
1. Remove the piston rings (1a) from the pistons using a suitable tool (1b).
1. Remove the piston rings (1a) from the pistons using a suitable tool (1b).
Check the connecting rod alignment using a sample pin.
If the connecting rod is out of alignment, replace it.
- 1028H54 piston/cylinder liner - r r.
Check the connecting rod alignment using a sample pin.
If the connecting rod is out of alignment, replace it.
- 1028H54 piston/cylinder liner - r r
Check the connecting rod alignment using a sample pin.
If the connecting rod is out of alignment, replace it.
Using the same pliers, fit the circlips on the piston.
- 1028H54 piston/cylinder liner - r r, operation to be carried out on the entire set of pistons.
Fit the piston rings using the tool.
Assemble the connecting rods with the pistons so that the number stamped on the small end faces the large notches (for inlet valves) on the piston crown.
Fit the pin and secure it with its circlips.
Fit the piston rings using the tool.
Assemble the connecting rods with the corresponding pistons so that the number stamped on the small end faces the large notches (for inlet valves) on the piston crown.
Fit the pin and secure it with its circlips.
Reassembling
Check the alignment of the connecting rods using a suitable tool; if the connecting rod is not perfectly aligned, replace it.
Check that the difference in weight between the pistons is within the recommended values.
The arrows in the diagram show the areas from where material can be removed in order to equalize the weight.
| Measurement | Value | ||
|---|---|---|---|
| Piston weight difference (g) | ± 5 |
Check that the difference in weight between the connecting rods, complete with bearing shells, caps and bolts, is within the recommended values.
The arrows in the diagram show the areas from where material can be removed in order to equalize the weight.
| Measurement | Value | ||
|---|---|---|---|
| Connecting rod weight difference (g.) | ± 2.5 |
Reassembling
Check the alignment of the connecting rods using a suitable tool; if the connecting rod is not perfectly aligned, replace it.
Check that the difference in weight between the pistons is within the recommended values.
The arrows in the diagram show the areas from where material can be removed in order to equalize the weight.
| Measurement | Value | ||
|---|---|---|---|
| Piston weight difference (g.) | +- 5 |
Check that the difference in weight between the connecting rods, complete with bearing shells, caps and bolts, is within the recommended values.
The arrows in the diagram show the areas from where material can be removed in order to equalize the weight.
| Measurement | Value | ||
|---|---|---|---|
| Connecting rod weight difference (g.) | ± 2.5 |
Fit the piston rings on the pistons using a suitable tool.
1. Join the connecting rods to the pistons so that the number stamped on the big end (1a) is facing the explosion chamber (1b) in the piston.
Fit the pins and secure them using the circlips.
Fit the piston rings on the pistons using a suitable tool.
1. Join the connecting rods to the pistons so that the number stamped on the big end (1a) is facing the reference (1b) on the piston skirt where the oil jet is housed.
Fit the pins and secure them using the circlips.
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