Fuel injectors
- Make
- Alfa Romeo
- Model
- 147 Factory Service Manual
- Year
- 2000–2004
- Section
- Diesel fuel injection › Fuel injectors
Fuel injectors
Removing
- 1016A10 sound-proofing cover - r + r
- 1060F36 lines to injectors - r r
Disconnect the pipe from the injectors to the fuel recovery manifold from the manifold and injectors.
Disconnect the injector electrical connections
| Name | Connector | |
|---|---|---|
| Injector | N70 |
1. Undo the injector anchoring brackets securing nuts.
2. Fit injector removal device (2a). Ensure lifting bracket (2b) is fitted beneath the polygonal area of the injector.
3. Fit the second lifting bracket (3a) of the device under injector securing bracket (3b).
4. Tighten device nut (4a) and remove the injector (4b).
Repeat the operation for the remaining injectors.
| Name | Country | |
|---|---|---|
| 2a | Extractor | 1.870.739.000 |
If the same injectors are being reused, mark the cylinder to which they belong so that they can be correctly refitted.
If new injector(s) is (are) being fitted, it is necessary to:
- Determine the identification code stamped on the top.
- Check that the new injectors(s) is (are) recognized by the engine management control unit using the Examiner.
Refitting
Check the injectors are in good condition.
Fit the injectors complete with bracket.
Tighten the fixing nuts to torque.
| Fastening | Component | Ø | Value (daNm) | |
|---|---|---|---|---|
| Nut | INJECTORS(DIESEL) | M8 x 1.25 | 2.6 ÷ 3.2 |
Fit the injection wiring and tighten the fixing bolts.
Connect the electrical connections to the injectors.
| Name | Connector | |
|---|---|---|
| Injector | N70 |
Connect the pipe clips to the injectors and connect the pipe to the return manifold.
- 1060F36 lines to injectors - r r
- 1016A10 sound-proofing cover - r + r
Removing
Proceed with removal - 1016A10 sound-proofing cover - r + r.
Ensure that the ignition key is in the OFF position, then disconnect the negative battery terminal (-).
| Name | Connector | |
|---|---|---|
| Battery | A1B |
1. Disconnect the electrical connections from the injectors.
| Name | Connector | |
|---|---|---|
| 1 | Injector | N70 |
2. Disconnect the electrical connection from the cam angle sensor.
| Name | Connector | |
|---|---|---|
| 2 | Timing sensor. | K47 |
3. Disconnect the electrical connection for the air conditioning compressor.
| Name | Connector | |
|---|---|---|
| 3 | Air conditioning compressor engagement electro-magnet | L20 |
Release the electrical wiring from the band on the timing cover.
4. Undo the bolts fastening the cable duct and move the electrical wiring aside.
1. Push clips (1a) by hand and disconnect the pipe from the injectors to the fuel recovery manifold (1b), injectors side and move it aside.
2. Undo the connectors (2a), (2b) and remove the pipe from the fuel manifold to the injectors (2c).
Use new pipes from from fuel manifold to injectors upon reassembly.
1. Undo the nuts fixing the injector brackets.
2. Remove the injectors (2a) complete with brackets using the tool (2b).
If the same injectors are being reused, mark the cylinder to which they belong so that they can be correctly refitted.
If new fuel injectors are fitted:
- determine the identification code stamped on the top;
- check that the new injectors(s) is (are) recognized by the engine management control unit using the Examiner.
Start the removal beginning with the injector for cylinder no. 1 and continuing with the injectors for cylinders 2, 3 and 4.
| Name | Country | |
|---|---|---|
| 2b | Extractor | 1.870.897.300 |
Refitting
1. Refit the injectors (1a) complete with brackets and secure by tightening the nuts (1b) to the specified torque.
Start the refitting beginning with the injector for cylinder no. 4 and continuing with the injectors for cylinders 3, 2 and 1.
| Fastening | Component | Ø | Value (daNm) | |
|---|---|---|---|---|
| 1b | Nut | INJECTORS(DIESEL) | M8 | (Camshaft housing side) 2.3 ÷ 2.8 |
1. Fit the new pipes from the fuel manifold to the injectors and secure them using the connectors without tightening them.
2. Tighten the connectors for the pipes from the fuel manifold to the injectors, injector side, to the recommended torque using a suitable spanner.
| Fastening | Component | Ø | Value (daNm) | |
|---|---|---|---|---|
| 2 | Connector | FUEL MANIFOLD LINE TO INJECTORS | M12 | (Injector side) 2.2 ÷ 2.4 |
3. Tighten the connectors for the pipes between the fuel manifold and the injectors, fuel manifold side, to the recommended torque using a suitable spanner.
| Fastening | Component | Ø | Value (daNm) | |
|---|---|---|---|---|
| 3 | Connector | FUEL MANIFOLD LINE TO INJECTORS | M12 | Fuel manifold side 22 24 |
Clean the threaded seats for the above-mentioned pipe on the manifold and the injectors using heptane.
4. Connect the pipe from the injectors to the fuel recovery manifold (4a) to the injectors pushing it until the clips (4b) can be heard clicking into place.
Place the electrical wiring back in its housing and tighten the cable duct fixing bolts.
Fasten the electrical wiring using the band on the timing cover.
Connect the electrical connection to the air conditioner compressor.
Connect the electrical connection to the cam angle sensor
Connect the electrical connections to the injectors.
Connect the negative (-) battery terminal
Proceed with refitting - 1016A10 sound-proofing cover - r + r.
Parts & tools for this job For 2000 Alfa Romeo 147
- PARTFuel filterSearch: Alfa Romeo 147 2000 fuel filter
- TOOLFuel pressure test kitSearch: fuel pressure test kit
- TOOLFuel line disconnect toolSearch: fuel line disconnect tool
Links open Amazon search results in a new tab. As an Amazon Associate I earn from qualifying purchases.