2. Check the radiator cap gasket for possible dam-
age. If this is so, replace the radiator cap.
3. With your fingers lift the cap valve. Check that
the valve operates properly. In case the valve does
not operate properly, replace the radiator cap.
Cooling circuit check for possible water leaks
1. Fill the radiator with coolant and apply the radi-
ator testing device.
2. Warm up the engine.
3. Apply a pressure of 88 kPa (0.9 bar) to the cool-
ing system with radiator testing device.
4. In case the pressure lowered, check pipes, the
radiator, water pump, heating, for possible leaks.
If no leaks are detected, check: heating radiator,
block, head and heat exchanger for possible leaks.
Check the pipes for possible deterioration, break-
ing or damage. Replace the defective parts.
5. Remove the radiator testing device from the ra-
diator.
6. Refit the radiator cap
- NEVER REMOVE THE RADIATOR CAP OR BLEEDING
CAP WITH THE COOLANT STILL HOT. FAILURE TO OB-
SERVE THIS PRECAUTION CAN CAUSE BURNS.
Engine PORTER 1.3 16V
EN - 364