430 F-1 leaks overnight?

Where is the puddle in relation to your car? Is it under the reservoir or under the transmission? Can you pull the bottom panel off to see where it’s coming from?


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Can you tell if it’s coming out of the overflow tube in the cap?


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The correct amount of fluid is checked by leaving your engine hatch open overnight after you drive the car. In the morning check the level. It should be barely covering the baffle plate inside the reservoir.
I check mine by sticking my right forefinger in the reservoir and touching that baffle plate with the tip of my finger. The fluid should just cover your fingernail when the car is cold.

If the reservoir has any more fluid than that, remove it with a turkey baster with a piece of hose on the end of it.


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Not heard of checking fluid the above way. With a cold engine in the morning , open the drivers door and let the system pressurize. Using a flexible Stanley tape or similar to dip the f1 tank, you should have 18 mm of fluid on the tape.
With the tank spitting out fluid it sounds like you have let the level get too low and you now have air in the system, the fluid will now be aerated , this will increase the oils volume and it will come out the tank overflow. You are going to have to bleed the system to remove the air.
With the air in the system , it may not be getting up to cut out pressure for the pump as you have a pneumatic/ hydraulic mix.

 

Overnight the system loses its pressure and the tank level rises, then overflows. There is a good video on u tube on bleeding the f1 system, you need a scanner to trigger the pump

 

If you are using your dip stick check your level it is wrong there was a bulleting from from Ferrari years back to the dealers fluid should be no more the 5mm above the plate inside the tank.
I know went threw the same same hope this helps.

 

Get in the car. Close the door. Turn the key on..but do not start the engine. Allow the pump to run and then stop. With your foot on the brake. Shift gears..1st, 2nd, reverse. If you cannot shift gears at least 3 times before the pump activates..then your pressure accumulator needs to be replaced. If the diaphragm within the accumulator has ruptured you will get an over fill situation in the resiviour.

Give that a try and let us know what happened.

 

My dip of 18 mms comes from the workshop boss at my main dealer, the worst that will happen if its too much is it will come out the overflow when de pressurised. He has his present problems as the level has been too low and air has got into the system. Mine has been on 18 mm for years and no issue

 

tbakowsky, thank you for an actual data point to test to determine accumulator condition!
I had the same problem. Overfill. I was foolish enough to read and follow the owners manual! Called a good friend and trusted Ferrari Tech. He laughed and pointed me in the right direction.

 

I didn’t bleed mine there. I bled mine down on the right side of the gearbox. It has a silver fabric heat shield, with snaps, wrapped around it. I followed Dansupercarguys directions. Do you have a Launch X431?


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If it goes out the overflow should make sense why there is trans fluid leaking on the floor BOSS . Air in the system would not cause it to leak BOSS.
Not all of these tanks are the same on all model years just a couple different years they had this issue. I am very very for from being any type of a expert on these cars just from what I have had happen to me.

I do not have to ask a main dealer for anything Boss, have my on work shop manel my self and plenty of time to figure it out and do wright.
He needs to check his F1 block very common issue they crack over time and leak maybe that is how there is air in the system.

 

If you do the pump activation in this way, how do you make sure you do not exceed the maximum pressure ? Pumping until the overpressure valve activates will not be a good idea. In addition you may want to activate valves which you also can not do without a tester. Would recommend getting a WSM and tester if you want to do the bleeding by yourself.

 

Very polite

 

That will not work. The scan tool opens an closes select solenoid valves on the power unit during the bleed procedure. If you just power up the pump all you will do is over charge the accumulator and possibly cause internal damage to it.

There are a few steps that must be taken to bleed the system properly, and to do this you need a scan tool capable of doing it. You also must have the shift actuator removed from the gearbox in order to get all the air out of that component as well. It is not a quick job to do correctly.

 

One two seconds may indicate a bad accumulator as mentioned above

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Can you read the cut in/ cut out pressure. You need to be sure the pressure switches are working ok.