Lubrication system - check delivery pressure
- Make
- Alfa Romeo
- Model
- GT Factory Service Manual
- Year
- 2003–2010
- Section
- Various controls › Lubrication system - check delivery pressure
LUBRICATION SYSTEM - CHECK DELIVERY PRESSURE
Start the car and let it warm up until the radiator cooling fan has come on twice.
Position the vehicle on a lift.
Proceed with the removal
Op. 7055B54 UNDER-ENGINE GUARD - R R.
Proceed with the removal
Op. 1076B18 RIGID SECTION OF EXHAUST PIPE BETWEEN CATALYTIC CONVERTER AND SILENCER - R + R.
Proceed with the removal
Op. 1084A42 ENGINE OIL TEMPERATURE SENDER UNIT - R + R.
1. Fit the engine oil pressure warning light switch in the housing.
| Description | Code | |
|---|---|---|
| 1 | Connector | 1.860.969.000 |
2. Fit the pressure gauge.
Start up the engine only for long enought to check that the engine lubrication system supply pressure is within the recommended values.
| Measurement | Value | ||
|---|---|---|---|
| Clearance between piston - cylinder liner (mm) | Category A | 0.038 - 0.058 | |
| Category B | 0.039 - 0.061 | ||
| Category C | 0.042 - 0.062 | ||
| Measurement | Value | ||
|---|---|---|---|
| Engine oil pressure at 4000 rpm (bar) | 6 |
Remove the pressure gauge.
Remove the tool.
| Description | Code | |
|---|---|---|
| Connector | 1.860.969.000 |
Proceed with the refitting
Op. 1084A42 ENGINE OIL TEMPERATURE SENDER UNIT - R + R.
Proceed with the refitting
Op. 1076B18 RIGID SECTION OF EXHAUST PIPE BETWEEN CATALYTIC CONVERTER AND SILENCER - R + R.
Proceed with the refitting
Op. 7055B54 UNDER-ENGINE GUARD - R R.
Remove the vehicle from the lift. [PA1]
Let the engine warm up (engine oil temperature (~ 90°C).
Proceed with the removal
Op. 7055B54 UNDER-ENGINE GUARD - R R.
Proceed with the removal
Op. 1084B30 ENGINE OIL FILTER R R.
Proceed with the removal
Op. 1084A42 ENGINE OIL TEMPERATURE SENDER UNIT - R + R.
1. Fit the insufficient engine oil pressure warning light switch in the housing.
| Description | Code | |
|---|---|---|
| 1 | Connector | 1.860.969.000 |
2. Fit the pressure gauge.
Temporarily fit the engine oil filter.
Start up the engine only for long enough to check that the engine oil pressure is within the recommended values.
| Measurement | Value | ||
|---|---|---|---|
| Engine oil pressure at idle speed (bar) | 0.8 |
| Measurement | Value | ||
|---|---|---|---|
| Engine oil pressure at 4000 rpm (bar) | 4.5 |
Remove the engine oil filter
Remove the pressure gauge.
Remove the tool.
| Description | Code | |
|---|---|---|
| Connector | 1.860.969.000 |
Proceed with the refitting
Op. 1084A42 ENGINE OIL TEMPERATURE SENDER UNIT - R + R.
Proceed with the refitting
Op. 1084B30 ENGINE OIL FILTER R R.
Proceed with the refitting
Op. 7055B54 UNDER-ENGINE GUARD - R R.
Start the car and let it warm up until the radiator cooling fan has come on twice.
Position the vehicle on a lift.
Proceed with the removal
Op. 7055B54 UNDER-ENGINE GUARD - R R.
Proceed with the removal
Op. 1084A42 ENGINE OIL TEMPERATURE SENDER UNIT - R + R.
1. Fit the engine oil pressure warning light switch in the housing.
| Description | Code | |
|---|---|---|
| 1 | Connector | 1.860.969.000 |
2. Fit the pressure gauge.
Start up the engine only for long enought to check that the engine lubrication system supply pressure is within the recommended values.
| Measurement | Value | ||
|---|---|---|---|
| Gap (mm) | 1st Ring | 0.250 - 0.500 | |
| 2nd ring | 0.300 - 0.500 | ||
| Oil scaper ring | 0.250 - 0.450 | ||
| Measurement | Value | ||
|---|---|---|---|
| Big end diameter (mm) | 53.909 - 53.897 |
Remove the pressure gauge.
Remove the tool.
| Description | Code | |
|---|---|---|
| Connector | 1.860.969.000 |
Proceed with the refitting
Op. 1084A42 ENGINE OIL TEMPERATURE SENDER UNIT - R + R.
Proceed with the refitting
Op. 7055B54 UNDER-ENGINE GUARD - R R.
Remove the vehicle from the lift. [PA1]
- Let the engine warm up (oil temperature ~ 90°C).
- Op. 1072C44 EXHAUST MANIFOLD HEAT SHIELD ON BULKHEAD - R+R
- Op. 1080B40 CATALYTIC PRE-CONVERTER - R R
- Op. 1084A42 ENGINE OIL TEMPERATURE SENDER UNIT - R + R
1. Fit the insufficient engine oil pressure warning light switch in the housing.
| Description | Code | |
|---|---|---|
| 1 | Connector | 1.860.969.000 |
2. Fit the pressure gauge
- Op. 1080B40 CATALYTIC PRE-CONVERTER - R R
- Start up the engine only for long enough to check that the engine oil pressure is within the recommended values.
- Op. 1080B40 CATALYTIC PRE-CONVERTER - R R
- Remove the pressure gauge.
- Remove the tool.
| Description | Code | |
|---|---|---|
| Connector | 1.860.969.000 |
Parts & tools for this job Staging For 2003 Alfa Romeo GT
- PARTOil filterSearch: Alfa Romeo GT 2003 oil filter
- TOOLOil filter wrenchSearch: oil filter wrench
- FLUIDEngine oilSearch: Alfa Romeo GT engine oil
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