I think my Clutch of Diff has failed today | Page 2 | FerrariChat

I think my Clutch of Diff has failed today

Discussion in '360/430' started by 360Dee, Oct 21, 2020.

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  1. EastMemphis

    EastMemphis Formula 3
    Owner Silver Subscribed

    May 25, 2019
    1,736
    Memphis, TN
    Full Name:
    John
    If this was my car, I'd get it on a lift, drop the pan and manually move the wheels with the car in gear, clutch in. That should help pinpoint exactly where in the transaxle the problem lies. If it's a bearing, might be a low cost fix. If it's deep inside, bummer, and get a new transaxle.

    I certainly feel for your loss.
     
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  2. 360Dee

    360Dee Rookie

    May 4, 2020
    41
    Full Name:
    Grant
    Thanks. It's going on a lift tomorrow. Sadly cant have it in gear / clutch in as its an F1 box car but we plan to manually move things around and run the car in first and try to find the source of the noise
     
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  3. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,835
    Isle of man- uk
    The Nottingham branch picked mine up from Heysham for £150 , this was a few years ago. If you have an f1 box i dont think it is a straight swap anyway and will need expertise . You can get them to tell you what needs doing and costs etc.
     
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  4. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,835
    Isle of man- uk
    i still think you r looking at a bearing on the rear drive shaft
     
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  5. 360Dee

    360Dee Rookie

    May 4, 2020
    41
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    Grant
    Thanks for the replies Mike. I'm weighing up all options... If it were the driveshaft bearing it'd be making noise rolling in neutral though wouldn't it?

    I'm update you all once I've had the chance to look over the car/hear it on a lift
     
  6. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,835
    Isle of man- uk
    #31 mike32, Oct 23, 2020
    Last edited: Oct 23, 2020
    Might not as it is not transmitting torque, the torque is power and will put weight on the bearing. Once you get the weight off the wheels you should be able to put your fingers on the bearings and feel a rough one when the shaft is turned. Or try a prybar and look for lift in the shaft. If it was gearbox i would expect problems getting gears to engage
    Look on u tube for info re drive shafts/
     
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  7. 360Dee

    360Dee Rookie

    May 4, 2020
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    Grant
    Hmm. interesting Mike. I'll be sure to check it all thoroughly. Yes gear's are all fine
     
  8. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,835
    Isle of man- uk
    Eurospares have used wheel bearing and housing at about £200 + vat. Thats about half price ( assuming thats all it is)
     
  9. 360Dee

    360Dee Rookie

    May 4, 2020
    41
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    Grant
    Just got the car home. Couldn't resist a quick jack and spin of the wheel.

    This is in neutral :

    https://youtu.be/14cAuDyNxwk

    Any thoughts on this? Other wheel doesn't make the clank clank clank rollercoaster climbing type sound
     
  10. flash32

    flash32 F1 Veteran

    Aug 22, 2008
    5,660
    Central NJ
    Full Name:
    Dominick
    Looks like you narrowed it down to CV joint or the. Diff (clutch plates?)

    So the same thing with someone listen to the CV joints on half axles .. and I think you will have your answer

    Sent from my moto g(7) using Tapatalk
     
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  11. yelcab

    yelcab F1 World Champ
    Consultant

    Nov 29, 2001
    12,661
    San Carlos, CA
    Full Name:
    Mitchell Le
    You hope it is just your cv joint. Remove the axle on that side and strip it down. You are handy enough for that.
     
  12. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,835
    Isle of man- uk
    U r getting there- screwfix do a de walt impact for reasonable money, will make life easier
     
  13. 360Dee

    360Dee Rookie

    May 4, 2020
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    Grant
    Another odd development...

    Spin the wheel this morning and ...nothing. Wheel spins with about the right amount of resistance but no clank clank clank.

    The only difference from last night to this morning is the car was hot from loading/unloading onto the recovery last night. Stone cold, not moved this morning.

    I was ready to strip that shaft off but now I’m at a bit of a loss.
     
  14. EastMemphis

    EastMemphis Formula 3
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    May 25, 2019
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    John
    I doubt the good fairy of Ferrari repair paid you a midnight visit. I suggest going ahead with your plan.
     
  15. 360Dee

    360Dee Rookie

    May 4, 2020
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    Grant
    #40 360Dee, Oct 24, 2020
    Last edited: Oct 24, 2020
    Haha I doubt that too!

    However... If I’m not able to trace the noise by manually turning parts how am I meant to track down where the problem is? Just a case of stripping the shaft and looking for something busted?

    I’ll try running it on stands today.
     
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  16. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,835
    Isle of man- uk
    Forget running it before u do more damage, get the half shaft out and see what is going on. Very simple job. Look on eurospares web site for a good drawing of the assembly.
     
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  17. Extreme1

    Extreme1 Formula 3

    Jun 27, 2017
    1,222
    Santa Clarita, CA
    You will need a solvent tank if you are going to open up the CV’s. The cage might be broken inside, but the whole CV will need to be cleaned to see what’s broken. I’ve used my wife’s Tupperware and gasoline in a pinch, but be careful of the fumes.
    When you put the CV back together, make sure it’s clocked correctly. Caterpillar grease is one of the best available for CV’s, I used it for years offroad racing. It comes in a tube for a caulking gun which makes things easier.


    Sent from my iPhone using FerrariChat.com mobile app
     
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  18. 360Dee

    360Dee Rookie

    May 4, 2020
    41
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    Grant
    Thanks everyone.

    I plan tomorrow to remove the shaft and briefly run it to see if the noise persists or if it has disappeared with the shaft.

    We’re getting somewhere...
     
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  19. 360Dee

    360Dee Rookie

    May 4, 2020
    41
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    Grant
    Got the shaft off today. Noise is still painfully obvious :(

    Options seem to be :

    A: Replace Trans (£5,500)
    B: Rebuild Trans (£800 labour for strip + £? for parts)

    Anyone have up to date prices for crown / pinion etc? Need to try to gather an idea of worst case scenario once this is opened up.
     
  20. Toonfosi

    Toonfosi Karting
    Silver Subscribed

    Mar 13, 2014
    206
    Valley Village, CA
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    Chad Woods
    Just curious, have you drained the gearbox/ pulled the mesh filter to inspect yet?
     
  21. 360Dee

    360Dee Rookie

    May 4, 2020
    41
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    Grant

    Not yet Chad. Will post pics when I do
     
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  22. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,835
    Isle of man- uk
    Eurospares showing complete diff with shafts and bearings at £1800 plus vat or if its just the 2 roller bearings, about £110 ea plus vat. If u can id bearing will be lot cheaper from bearing wholesaler.
     
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  23. 360Dee

    360Dee Rookie

    May 4, 2020
    41
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    Grant
    I seen that Mike, having called them they have no stock. The factory also have no stock although are apparently 'in production'.

    I spoke with the re-builder this morning. His concern is that whatever has failed in the diff has fired swarf into the box effecting rendering it useless. Still he advises opening it and having a look.
     
  24. mike32

    mike32 F1 Veteran

    May 13, 2016
    5,835
    Isle of man- uk
    You might be lucky and find the roller bearing has failed, hope it has stayed in diff .Ferrari classic parts showing no stock either( part of graypaul ) give bh ferrari a ring and see if he knows of any bits, they do a lot of ferrari rebuilds and if you need an expert he is the man to go to. Probably the best in uk
     
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  25. 360Dee

    360Dee Rookie

    May 4, 2020
    41
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    Grant
    Thanks Mike, it was AV Engineering I was speaking with but I'll give BH a call too.
     

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