Cooling system
- Make
- Alfa Romeo
- Model
- 145/146 Factory Service Manual
- Year
- 1994–1999
- Section
- Engine supply - cooling › Cooling system
Technical data and maintenanceCooling system
COOLING SYSTEM
| Check pressure of hydraulic system | 1.08 bar (1.1 kg/cm2) |
|---|---|
| Calibration pressure of the pressurized cap | 0.98 ± 0.1 bar (1 ± 0.1 kg/cm2) |
WATER PUMP
| Boxer engines | Turbodiesel engines | |
|---|---|---|
| Play between impeller and pump body | 0.5 ÷ 0.8 mm | 0.53 ÷ 1.37 mm |
THERMOSTAT
| Boxer engines | Turbodiesel engines | T. Spark 16V engines | ||
|---|---|---|---|---|
| 1929 TD | 1910 JTD | |||
| Temperature of start opening | 86° ± 2°C | 83° ± 2°C | 80° ± 2°C | 83° ± 2°C |
| Valve stroke | (a 100°C) > 7 mm | (a 90°C) ≥ 7.5 mm | - | (a 103° ± 2°C) 9.5 mm |
THERMAL CONTACT OF THE ELECTRIC COOLING FAN
| Petrol engines (**) | 1929 TD | ||
|---|---|---|---|
| 1^ speed | ON (contacts closing) | 92° ± 2°C | 88° ± 2°C |
| OFF (contacts opening) | 87° ± 2°C | 83° ± 2°C | |
| 2^ speed (*) | ON (contacts closing) | 97° ± 2°C | 92° ± 2°C |
| OFF (contacts opening) | 92° ± 2°C | 87° ± 2°C | |
(*): For cars with Boxer engines, the second [illegible] is present only on air conditioned versions.
(**): Not for T. SPARK 16V with injection- ig[illegible] system M2.10.4 e M1.5.5.
TRANSMITTER GAUGE FOR TEMPERATURE OF COOLING/CONTACT FLUID PILOT LIGHT OF MAXIMUM TEMPERATURE
| Contact temperature pilot light of max. temperature | Boxer engines | Turbodiesel engines | 1970 T. SPARK 16V | 1370 1598 1747 T. SPARK 16V | |
|---|---|---|---|---|---|
| 1929 TD | 1910 JTD | ||||
| Intervention temperature | 117° ± 3°C | 115° ± 3°C | (*) | 122° ± 2°C | 120° ± 2°C |
| Release temperature | 100° ± 3°C | 85°C | (*) | 112° ± 3°C | 108° ± 3°C |
N.B. To check the calibration data of the transmitter, please refer to "ELECTRIC-ELECTRONIC DIAGNOSTICS".
(*): Data which are not available while printing
Parts & tools for this job For 1994 Alfa Romeo 145/146
- FLUIDCoolantSearch: Alfa Romeo coolant antifreeze
- PARTThermostatSearch: Alfa Romeo 145/146 1994 thermostat
- TOOLCooling system pressure testerSearch: cooling system pressure tester
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