360 F1 Transmission 2-1 Gear Change issue | FerrariChat
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360 F1 Transmission 2-1 Gear Change issue

Discussion in '360/430' started by mvaldezf60, Dec 2, 2023.

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  1. mvaldezf60

    mvaldezf60 Karting

    Feb 16, 2009
    212
    California
    Full Name:
    Mike
    #1 mvaldezf60, Dec 2, 2023
    Hello, I have now had my 2001 F1 Transmission 360 Modena for a couple months. The car from time to time will make a clunking noise and/or grinding noise when going from 2-1st gear. I noticed this doesn't happen as often if I let the car warm up for about 10-12 minutes before driving. I checked fluids after car warms up a bit and they look good. The car does has an almost brand new clutch that was done at the beginning of the year. All the other gears shift fine for the most part. Is my transmission going bad? is this a PIS issue? The last owner reported that this started happening after he let someone else drive the car. My thought was that the person who was borrowing it was launching the car very hard. The car is going to go in for service next month but am very curious to see what everyones thoughts are on this issue.
     
  2. flash32

    flash32 F1 Veteran

    Aug 22, 2008
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    #2 flash32, Dec 2, 2023
    I would immediately check the fluid ..for level and antifreeze contamination

    Also have someone do a gearbox relearn ..that may help

    What is your PIS ..does it happen more cold or hot

    Does you car move by itself when in gear with no gas being applied

    Sent from my moto g power using Tapatalk
     
  3. mvaldezf60

    mvaldezf60 Karting

    Feb 16, 2009
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    Mike
    #3 mvaldezf60, Dec 2, 2023
  4. mvaldezf60

    mvaldezf60 Karting

    Feb 16, 2009
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    Mike
    #4 mvaldezf60, Dec 2, 2023
    ok I will recheck fluids and look for antifreeze contamination. it does move when in gear and no gas is applied. Thank you
     
  5. flash32

    flash32 F1 Veteran

    Aug 22, 2008
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    #5 flash32, Dec 2, 2023
    If it moves in gear with no gas applied ..your pis is set to low ..fix thàt immediately

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  6. anotherred360

    anotherred360 Formula Junior

    Jan 10, 2015
    279
    USA
    #6 anotherred360, Dec 2, 2023
    What are the circumstances for the 2-1 downshift? That is typically a hard shift on the transmission if it's for engine braking. I only make that shift when I'm almost at a stop.
     
  7. mvaldezf60

    mvaldezf60 Karting

    Feb 16, 2009
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    #7 mvaldezf60, Dec 2, 2023
    I only make this shift when approaching a stop light/sign at normal driving/speeds
     
  8. mvaldezf60

    mvaldezf60 Karting

    Feb 16, 2009
    212
    California
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    Mike
    #8 mvaldezf60, Dec 3, 2023
  9. imahorse

    imahorse F1 Rookie
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    Nov 25, 2017
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    #9 imahorse, Dec 3, 2023
    If overfilled it overflows. May not be leaking. It's rather common because filling it to the specified dipstick level will overfill it.

    Sent from my toilet using FerrariChat.com mobile app
     
  10. flash32

    flash32 F1 Veteran

    Aug 22, 2008
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    #10 flash32, Dec 3, 2023
    Gear oil is not what is in there .... It is ATF


    Your F1 system has two systems per SE ..the F1 system itself is a ATF fluid and the gearbox has the 75w90.you mentioned


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  11. mvaldezf60

    mvaldezf60 Karting

    Feb 16, 2009
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    #11 mvaldezf60, Dec 4, 2023
    Do you have more info on the ATF that I would use? Or can point me to an existing thread I could reference on here?
     
  12. flash32

    flash32 F1 Veteran

    Aug 22, 2008
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    #12 flash32, Dec 4, 2023
    Since it is a older 360 - use Castrol Dex/Merc for older Gm cars ( that's on the label)
     
  13. flash32

    flash32 F1 Veteran

    Aug 22, 2008
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    #13 flash32, Dec 4, 2023
    My comments on top mentioned to check gear oil for level and contamination nit F1 fluid


    Also the way to properly check F1 fluid ..is to open door , turn key and immediately measure fluid from top on disk inside reservoir..should be half s finger nail above disc

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  14. collegeboy

    collegeboy Formula 3
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    #14 collegeboy, Dec 4, 2023
    That’s not your transmission fluid. DO NOT PUT THAT OIL IN THERE! That’s your F1 system hydraulic fluid and it uses ATF fluid.
     
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  15. mvaldezf60

    mvaldezf60 Karting

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    #15 mvaldezf60, Dec 6, 2023
    How do you check the Gear oil? is there a thread on here showing that?
     
  16. flash32

    flash32 F1 Veteran

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    #16 flash32, Dec 6, 2023
    In it is your owners manual

    There is a little dipstick on the left side of transmission..Idle for about 2 mins , wait 5 minutes after shutting off

    Remove dipstick , wipe , put back in (just resting on threads ..don't screw in) and then measure ..should be between min and max

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  17. Sundayjumper

    Sundayjumper Karting

    Jun 19, 2019
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    #17 Sundayjumper, Dec 7, 2023
    This doesn't answer your question, but when slowing to a complete halt I usually drop it into neutral (pull both paddles towards you) to avoid doing the 2>1 shift completely. As others have said, it's quite a harsh change at the best of times. Could the clunk you're hearing be due to worn engine / gearbox mounts allowing the whole thing to bounce about ?
     
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  18. mvaldezf60

    mvaldezf60 Karting

    Feb 16, 2009
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    #18 mvaldezf60, Dec 7, 2023
    Possibly, but thank you for the advice shifting to N instead of 1, I will try doing that and see if there's a difference. Will also re-check owners manual for gear oil check instructions. Thank you!
     

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