Explosion of coolant running on the highway

Hello, I resume the thread of my about almost a year later. My 400 has passed a good warm winter in his garage. To resolve the failure of which mention is made above, I proceeded as follows:

1 - Check the operation of Thermostar bypass (1). For this purpose it is to extract the three hoses which it is coupled to soak in water at 212° F to see if the valves open and close in accordance with its function.
If this first test is successful, we move to Phase 2.
2 - Verification of the fans. This requires the disconnect switch (2) which switch and bring together two son (ignition on to the key of course) to determine if the fans are working or not. If the fans do not always turn, it is necessary to check the relay number 22 (right) (7) and over No. 25 (left) (8) that bring them into action. These relays are located behind a flap under the front passenger carpet. If the fans do not turn must then either fix them or change them! Also remember to check the fuses (9) that even if they look like one in the photo below may not work.
Sometimes, a seemingly good fuse is evil in the fuse holder, resulting in overheating causing corrosion of the contacts.
3 - The level of coolant (5) must be about 3 or 4 cm below the maximum level of the radiator, to avoid unnecessary spillage in the expansion tank during expansion of the liquid. The radiator cap (3) must be a flat plug.
4 - The expansion tank (6) must be empty of coolant and cap (4) shall be set in accordance with the original one is 0.9 bar.

In fact, it was the thermostat bypass that did not work. The valve was blocked and turned the coolant closed loop engine / motor bypassing the radiator. For this reason, the engine warmed much and the coolant was flowing well and the expansion tank.

In any case, thank you heard me helped to solve this problem, I also thank Pierre C. one of our forum members of the European Ferrari 400 Club which allowed me to formalize the methodology of diagnosis.

Theodore
http://www.f400club.com/forum/
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I changed all my hoses 400. Including those of heating. An exploded because it was very worn.
As for the fuses, they are not the ones who cause me emotional trauma, but my whole car when it was not health ...

 

As I explained a little earlier, it was the thermostat bypass which was blocked with motor / engine, which has an overheating of the water in the hoses. The water came into the radiator and steam escaped through the expansion tank as a loud belch ... And as the whole system was overheating, the heating hoses broke on the rear of the engine. My 400 was just a sick feverish and dripping!

 

In fact Whisky was right