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2nd Gear Synchromesh

Discussion in '206/246' started by Crawler, Sep 21, 2009.

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  1. Crawler

    Crawler F1 Veteran

    Jul 2, 2006
    5,018
    #1 Crawler, Sep 21, 2009
    Last edited by a moderator: Sep 21, 2009
    At around 34K miles, I've noticed that my 2nd gear synchromesh is getting weak. Upshifts work fine, but downshifts almost invariably produce a grinding sound, no matter how well I try to match the revs, unless I double-clutch. Given the fact that double-clutching does the trick, I can live with this, but I'm wondering if this is an abnormally low mileage for this to happen. All the other gears seem perfectly okay.
     
  2. TKO

    TKO Formula Junior

    Oct 22, 2004
    790
    SoCal
    Full Name:
    Tom Kearns
    #2 TKO, Sep 21, 2009
    Dinodan,

    I don't know if this is a common problem or not but my 46K original documented mile '72 also has a less than perfect 2nd gear. Very slight crunch when cold (sometimes warm) and downshifting must be matched. All other gears fine.
     
  3. TheMayor

    TheMayor Ten Time F1 World Champ
    Rossa Subscribed

    Feb 11, 2008
    106,167
    Vegas baby
    #3 TheMayor, Sep 21, 2009
    Last edited: Sep 21, 2009
    I replaced mine at about 18K and the gearbox was a completely different (and wonderful) animal.

    I pulled the engine and gearbox in a major service and went through it. Only the 2nd gear synchro showed any damage so it was replaced.

    Still, I double clutched to protect it -- especially when cold.

    The biggest single improvement I ever did to the car's driving was replacing the second gear synchro, the flat clutch cable, and the clutch -- oh, and the ujoint in the shift mechanism. All seem pretty weak or easily damaged by age.
     
  4. UroTrash

    UroTrash Four Time F1 World Champ
    Consultant Owner

    Jan 20, 2004
    40,487
    Purgatory
    Full Name:
    Clifford Gunboat
    #4 UroTrash, Sep 22, 2009
    Last edited: Sep 22, 2009
    I had trouble with 2nd gear when I fist got my car.

    But as time went on the Dino got to know me and love me and 2nd gear issues have gone away. I have no other explaination. :)
     
  5. stratos

    stratos Formula Junior

    Dec 9, 2003
    639
    Switzerland
    #5 stratos, Sep 22, 2009
    2nd gear synchro is, one of, the weak links in the gearbox.
    Replace with equivalent Porsche item and be careful when using 2nd after that.
     
  6. Crawler

    Crawler F1 Veteran

    Jul 2, 2006
    5,018
    #6 Crawler, Sep 22, 2009
    Wait until the "honeymoon" is over and the car gets tired of you...
     
  7. dm_n_stuff

    dm_n_stuff Four Time F1 World Champ
    Lifetime Rossa Owner

    Dec 10, 2003
    43,741
    26.806311,-81.755805
    Full Name:
    Dave M.
    #7 dm_n_stuff, Sep 22, 2009
    Clearly at first it was a rebellious car, longing for the comfy confines of Villanova. Later, as the car realized that no amount of misbehaving was going to get it sent back to PA, it decided to stop being petulant.

    That and perhaps you got just a little better with the gearbox. That synchro had less that 3000 miles on it when I shipped her to you.

    DM
     

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