complete 360 Coolant change, 50% at a time. | FerrariChat
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complete 360 Coolant change, 50% at a time.

Discussion in 'Technical Q&A' started by mahlerfree, Feb 4, 2022.

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  1. mahlerfree

    mahlerfree Karting

    Dec 19, 2019
    240
    #1 mahlerfree, Feb 4, 2022
    Last edited: Feb 4, 2022
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    My purpose is to remove all the old coolant because they are not the correct ones.

    I tilted the car to about 10 degrees by raising the rear of the car.
    I removed the drain plugs on both radiators.
    I drained out about 9 liters of coolant, helped by compressed air(without which it will be only 6 liters). Since total capcity is 18 liter, so I removed 50% of the old coolant. I wondered why? Where are the other 50% stored at?


    I then can only add 5 liters of pure water. I let the engine run until 110 C. shut down engine, and I felt the coolant tank in the engine bay is hot on top and only a little warm on bottom. Why is this?

    At this particular point I'd think that thermostat is open since the temperature is alerady over 100, but can I assume that the water I added has been mixed with the undrained coolant? Should I remove drain plugs at the moment (if safety isn't an issue) although it will only remove 50% x 5/18 of the old coolant ?
     
  2. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,288
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #2 Rifledriver, Feb 4, 2022
    Why not remove all the plugs?

    Also short of turning the car upside down 100% just will not come out.
     
  3. mahlerfree

    mahlerfree Karting

    Dec 19, 2019
    240
    #3 mahlerfree, Feb 4, 2022
    I only know there are 1 plug for each radiator. Any other plug should I know?

     
  4. DBomb117

    DBomb117 Formula Junior

    Jun 20, 2019
    344
    Connecticut
    Full Name:
    Dimitriy
    #4 DBomb117, Feb 4, 2022
    There are plugs on the block that need to be drained. I think one is located under cyl 5. You will drain much more that way.


    Sent from my iPhone using FerrariChat.com mobile app
     
  5. tbakowsky

    tbakowsky Two Time F1 World Champ
    Consultant Professional Ferrari Technician

    Sep 18, 2002
    20,047
    The Cold North
    Full Name:
    Tom
    #5 tbakowsky, Feb 4, 2022
    Remove the plugs on the engine..remove the 2 hoses connecting to coolant pipes from the engine that travel to the front of the car..pull the drains on the rads..use a mop and bucket to clean up the mess.

    Reinstall all plugs..hoses..and clamps. Use a vacuum filler/airlift device to fill the cooling system with approx 16-20 liters of coolant/water mixture..Pentosin Blue is what I use with a 50/50 mix.

    You will not get all of it out but it will be good enough.
     
    Solid State and mahlerfree like this.
  6. Ferrari Tech

    Ferrari Tech Formula 3

    Mar 5, 2010
    1,233
    Georgia
    Full Name:
    Wade Williams
    #6 Ferrari Tech, Feb 7, 2022
    When I am servicing 360s, I remove the two #14 hoses, the drain plugs on the side of the engine block, & the two drain plugs on the radiators. That gets most of it. If you don't have a vacuum filler, you can fill the tank, add pressure, clamp off hose #9 and release the pressure. The bleed hoses #11 & #13 will purge into the tank. Release the clamp & fill again and do this until the level of the tank does not drop. It may take 3-4 rounds of fill, pressure, clamp, purge, release.
     
    mahlerfree and lkstaack like this.

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