360 - 360 Manual Clutch Problem when hot | FerrariChat

360 360 Manual Clutch Problem when hot

Discussion in '360/430' started by MD355, Apr 20, 2024.

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  1. MD355

    MD355 Formula Junior

    Mar 8, 2004
    802
    Athens, Greece
    Full Name:
    MD
    Hi to all !!

    I owned my Ferrari 360 manual since 2005 and have replaced the clutch and throw-out bearing twice, once in 2012 and once in 2017.

    The first time 2012 I had the typical 360 manual issue that the clutch pedal becomes soft after changing gear at high rpm.. It is the throw out bearing was going bad.. I also replaced the clutch (even though it was in good shape as I know how to drive manual well and don't slip it)

    The second time it was 2017 when I was losing the clutch pedal and hydraulic fluid.. I thought it was the seals of the throw out bearing, but it turned out there was a small crack at the throw out bearing and it was leaking fluid.. I replaced throwout bearing, seals and clutch again and everything was fine..

    Fast forward 2024, my car shifts perfectly when cold... As it gets hot, even thought the clutch pedal appears to operate normally, with good travel and correct pedal pressure, it becomes VERY difficult to shift into 1st gear or reverse... 2nd-3rd-etc gears it shifts perfectly...

    I told my mechanic and he said that it is my clutch going bad... that as the clutch disk warms up, it "expands" and *I didn't understand exactly* something happens with the pressure plate fingers....

    What do you think ?

    I always thought that when the clutch goes bad, it starts slipping, meaning you cannot put all the power of the car... I had no idea that when a clutch starts going bad that it could become difficult to shift 1st gear... I always thought this was a throw-out bearing issue...

    Any ideas ??? Thanks !
     
  2. andrejwolk1975

    andrejwolk1975 Karting

    Feb 28, 2020
    107
    Italy
    Full Name:
    Andrea M
    Synchro of 1st gear?
     
  3. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    Sep 1, 2013
    1,762
    Western Mass
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    Raimondo
    EastMemphis, fatbillybob and flash32 like this.
  4. fatbillybob

    fatbillybob Two Time F1 World Champ
    Consultant Owner

    Aug 10, 2002
    28,642
    socal
    also, bleed it to ensure you have the capability of a working system.
     
    EastMemphis likes this.
  5. Jimmysmith

    Jimmysmith Karting

    Mar 5, 2023
    62
    Full Name:
    Jim smith
    I had similar issue where mine shifted fine cold, but after ten minutes of driving it got harder to shift. Turned out to be internal transmission/gearbox issues.
     
    Rifledriver likes this.
  6. MD355

    MD355 Formula Junior

    Mar 8, 2004
    802
    Athens, Greece
    Full Name:
    MD
    Thank you for your responses!
    I spoke with my mechanic again. He believes that the friction material on my clutch is worn out and as a result when the clutch warms up after 30 minutes of driving in traffic it start to get sticky and gears are hard to change...
    So it's time to start looking for a new clutch...
     
  7. MD355

    MD355 Formula Junior

    Mar 8, 2004
    802
    Athens, Greece
    Full Name:
    MD
    With regards to the lever bushing my mechanic believes that if I had problem shifting all the time, yes it could help..
    But when cold my car shifts very easily and smoothly..
    Only when it gets warm it starts having difficulty... Sometime when I am a traffic light after 40 mins of driving I will try 2-3 times to shift into 1st... Very frustrating...
     
  8. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    36,819
    Cowboy Capitol of the World
    Full Name:
    Brian Crall
    #8 Rifledriver, Apr 22, 2024
    Last edited: Apr 22, 2024
    I find it far more likely its time for a new mechanic. One who does not believe in the Easter Bunny.

    For one thing clutch material coefficient of friction goes down when hot and not up. The other is when the clutch pedal goes down it retracts the pressure plate leaving a great big space between the flywheel and the pressure plate with the clutch touching nothing but air. I do not care how sticky the clutch disc may be, it aint sticking to the air.

    Now, I don't know if your guy really believes this bull crap story or if he is just trying to get permission to go on a fishing trip. Either way hes full of it.
     
  9. Jimmysmith

    Jimmysmith Karting

    Mar 5, 2023
    62
    Full Name:
    Jim smith
    Try this test. Start your car and let it fully warm up -just idling. Is it harder to shift vs. cold? That would indicate to me internal gearbox issues. Did your mechanic do a gearbox flush?
     
  10. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    Sep 1, 2013
    1,762
    Western Mass
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    Raimondo
    So a new clutch and Fixn’s what 5k+, a new shifter bushing 81 bucks and is a DIY job if you can tackle a level 2 project. 1 hr max for a mechanic if you have to pay. I’m not saying that’s definitely the problem but be logical. I don’t get the feeling your mechanic knows these cars well.

    Also your third clutch on a manual car, how many miles? Mine had 51k on original clutch and I only replaced the clutch because I was in there doing a rear main seal. Original clutch Still technically measured within spec.
     
    ItalGerBrit and RedNeck like this.
  11. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    6,700
    Central NJ
    Full Name:
    Dominick
    Maybe I am the simple.one here ..but did you bleed /flush clutch line ...sometimes air will expand when very hot and you are not really opening clutch

    Sent from my moto g power using Tapatalk
     
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  12. Extreme1

    Extreme1 Formula 3

    Jun 27, 2017
    1,384
    Santa Clarita, CA
    I’m in agreement with everyone else.

    I’ve never seen a clutch plate get sticky and cause a shifting problem. I don’t know Ferrari clutches, but they are the same as on every other stick shift car, and I’m very familiar with numerous clutches on other cars.

    I would look elsewhere for the problem.


    Sent from my iPhone using FerrariChat
     
  13. swc5150

    swc5150 Formula Junior
    Rossa Subscribed

    Jan 5, 2021
    696
    Wisconsin
    Full Name:
    Scott Calderwood
    I would definitely start with a flush / bleed. Just out of curiosity too, did you go with a Hill TOB when you last replaced? Much better quality than oem, cheaper too.
     
    360+Volt=Prius likes this.
  14. MD355

    MD355 Formula Junior

    Mar 8, 2004
    802
    Athens, Greece
    Full Name:
    MD
    Thank you once again for your support !!
    After reading your comments, I thought to myself that common logic says that when you clutch is wearing out, it should be slipping, not causing difficulty in shifting in a manual 360 Modena..
    So I thought about checking the coolant tank...
    And guess what? It was empty...
    As I started pouring distilled water, a slurry mix of water and transmission oil started to appear...
    So, the common problem of failed gearbox heat exchanger is the cause...
    I need to make a list of parts and arrange for my car to be towed to my mechanic..
     
  15. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    36,819
    Cowboy Capitol of the World
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    Brian Crall
    You still need a new mechanic. If it were up to him you'd be getting a clutch.
     
  16. Jimmysmith

    Jimmysmith Karting

    Mar 5, 2023
    62
    Full Name:
    Jim smith
    Good luck and let us know how you get on. Let us know how they ended up fixing it.
     
  17. vrsurgeon

    vrsurgeon F1 World Champ
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    Dec 13, 2009
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    Curt
    That sucks! Sorry to hear!!
     
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  18. 360+Volt=Prius

    360+Volt=Prius Formula 3
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    Raimondo
    Sorry to hear that, I don’t think most of us were thinking something catastrophic.

    Listen to Brian (rifledriver) he is the real pro.
     
  19. mwstewart

    mwstewart F1 Rookie

    Feb 5, 2014
    2,754
    England
    Full Name:
    Mark
    Check inside the bellhousing for leaking release bearing seals. They get worse when hot.
     
  20. 67bmer

    67bmer F1 Rookie
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    Oct 28, 2015
    2,754
    MD
    That sucks! Sorry to hear that!
    If possible, post photos of your exchanger, inside water and inside oil sides. There is a debate about corrosion originating from the oil side, not the water side! Which I lean towards.
     
    EastMemphis likes this.
  21. blackbolt22

    blackbolt22 F1 Veteran
    Silver Subscribed

    Sep 25, 2007
    5,797
    Boca Raton, FL
    Full Name:
    Mr. Anderson
    I recommend you find another mechanic. After 10 yrs of problems and 3 mechanics, I finally ended up at F of Ft Laud. I wish I had gone there to begin with. This shifting problem when gearbox is hot seems to be a common occurrence with these 2 models. I have a 430. I would go to dealer if I were you. It will be less expensive in the long run. You almost bought a clutch you didn't need. DM me.
     
  22. MD355

    MD355 Formula Junior

    Mar 8, 2004
    802
    Athens, Greece
    Full Name:
    MD
    Update :
    I just got my car back from my mechanic.
    He removed the intake manifold in order to have access to the Gearbox Heat exchanger.
    I supplied him with a new heat exchanger which he replaced.
    He had to flush the entire coolant pipes and coolant system with special cleaner to remove the transmission oil.
    He remove both water radiator and cleaned them thoroughly.
    Since coolant was in the transmission, he flushed all of the liquids from the transmission and replaced with new transmission oil Shell Spirax S5 ATE which I supplied.
    Finally he put new coolant and cleaned / detailed all of the engine bay which looks like new.
    I provided him 8 small gaskets for intake manifold.
    Once I drove the car everything was perfect.
    Even when it got warm, the gears including reverse would slip in just fine !!
     
    Kerwind likes this.
  23. Jimmysmith

    Jimmysmith Karting

    Mar 5, 2023
    62
    Full Name:
    Jim smith
    That is very good news!!!
     
    MD355 likes this.
  24. Mario Andretti

    Mario Andretti Formula 3
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    Aug 9, 2020
    1,760
    Boston
    So it was water mixed with oil in the gearbox causing the issue... good thing you caught it.
     
    MD355 likes this.
  25. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    36,819
    Cowboy Capitol of the World
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    Brian Crall
    I see he did the job the hard way.
     
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