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Mondial QV Side Windows: From 4 mls to 4 secs

Discussion in 'Mondial' started by afterburner, Mar 22, 2015.

  1. afterburner

    afterburner Formula 3
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    Jun 20, 2008
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    #1 afterburner, Mar 22, 2015
    Last edited by a moderator: Sep 7, 2017
    In summer, it used to take 4 miles for the side windows to wind up - on a good day. And that was with the separat window relay set installed. And yes, the pulleys turn, the cables are greased and the channel gaskets are new.
    When it got cold here, the drivers side window stopped going up. Even when pulled up by hand completely releasing tension on the wires... time to restore the motor/gearbox.
    I had some hard time a couple of years ago with a Dino window winder/cable installation that had been out of the car and unwound. Took a while until the spools were wound the correct way, and needed 3 hands... I decided to see weather I can design a tool that would prevent the unspooling of the wires as I only have 2 hands here.
    Here the comic strip of the operation. Door panel removal for those who have never done it in order, starting with the single screw at the rear of the insert. The panel slides out rearwards - disconnect the mirror switch! The cheater panel is held by 1 tiny screw - don't loose it. The upper panel has one screw in the front face towards the dash, and 4 horizontal bolts on the underside. It lifts straight up.
    Front panel (speaker/doorhandle): Remove the single vertical screw from the front part of the chromed doorhandle surround underneath the lock flap, pulling it up slightly. Don't loose it.
    The cast surround moves out forward by lifting the doorhandle slightly. When putting back, make sure its 2 horizontal feet grab below the cast base's groove. Remove the vertical screw from below in the leather trimmed section, the horizontal screw in the corner of the carpet triangle and the 4 horizontal bolts along the upper edge. The panel moves away horizontally to clear the speaker. Unhook the speaker cables before removing the panel completely.
    The pocket panel has 3 horizontal bolts at the top and 2 vertical screws from the bottom. it falls off when loosened. Replacement in reverse order - hook up the speaker :)
    With the window up, put in the cable holder firmly against the window motor and fix it with cable ties. Position the window holder vertically and then tap the switch quickly to release some tension from the cables. Remove the 3 nuts of the window motor. It comes out easily via the bottom hole.
    Take everything apart and clean the concrete-like old grease out. Careful, as it is almost harder than the plastic parts. Benzine helps to dissolve and clean it off. I used tons of toothpicks, small chisels and Q-tips to clean the gear wheels. Re-assemble with new grease and put it back in. Put the cables back onto the pulleys and wind the window back up to take out the window holder.
    I also checked the two window stops and found one broken. I restored one and replaced the other one with a thick felt pad pending sourcing a new one. Any leads anyone? They do protect the window from getting shattered on the stop support when it gets slammed down in a hurry.
    I did the same to the passenger side with the same result. 4.5 hours per side, of which 3 cleaning...
    The window now goes down in 3.5secs and flies up in 4 flat
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  2. Wade

    Wade Two Time F1 World Champ
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    Mar 31, 2006
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    Wade O.
    Awesome thread!

    And brings back some memories as well. The gear grease in my then 10 year old Mondial 8 had turned into the same consistency as hard wax, almost plastic-like.
     
  3. godabitibi

    godabitibi F1 Veteran
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    Jan 11, 2012
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    Claude Laforest
    Great thread, I have to do the driver side on my TR because it doesn't go up fully. I may go that full grease job.

    BTW, first time I ever heard someone calculating window speed in miles, very funny!
     
  4. afterburner

    afterburner Formula 3
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    And that was on the highway!
     
  5. theunissenguido

    theunissenguido Formula 3
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    Great thread write up.

    Guido
    PS : how is your fathers project car doing ?
     
  6. afterburner

    afterburner Formula 3
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    Guido, hahaha you remember! The engine/gearbox is ready (=run in on the test stand) to go into the otherwise finished car. I will post as soon as she is up and running :) The result is stunning so far.
     
  7. porchnut

    porchnut Formula Junior

    Dec 2, 2014
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    Could they have designed something anymore difficult, amazing, hope I never have this issue with my '86 cab, as they currently go up and down I feel like any normal car of today, except for the driver side rear window, it needs a little help the last inch or so.
     
  8. dfranzen

    dfranzen Formula 3
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    Aug 31, 2013
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    clever idea to zip tie the cables from moving unwinding

    excellent write up !
     
  9. Antwan

    Antwan Karting

    Nov 22, 2013
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    Manchester UK
    Great afterburner. Thanks for posting this, good info.
     
  10. bartzagato

    bartzagato Formula Junior

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    This is a fantastic tutorial! Is there a printable version? 😜
     
  11. afterburner

    afterburner Formula 3
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  12. ronfrohock

    ronfrohock F1 Rookie
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    Awesome thread. Thanks so much!
     
  13. afterburner

    afterburner Formula 3
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    #14 afterburner, Mar 23, 2015
    Last edited by a moderator: Sep 7, 2017
  14. MvT

    MvT F1 Rookie
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    Very nice Urs! This is a job I really dislike -> windows.. simply because it tends to get messy and time consuming. however now I might think about it in doing so! :D
     
  15. Rapalyea

    Rapalyea Formula 3

    Jun 18, 2013
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    This has me stumped. The tool kit has an emergency window crank handle. Does it work independently of this NASA unit? If so, and if my windows go bad I think I would have some billet machined handles made out of Titanium or something.

    wow
     
  16. afterburner

    afterburner Formula 3
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    #17 afterburner, Mar 26, 2015
    Last edited by a moderator: Sep 7, 2017
    david - I think if you PRESS your handle into that slot (which is right behind the cover in the door panel), you unlock the spool from the gearwheel.
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  17. theunissenguido

    theunissenguido Formula 3
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    Jan 21, 2004
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    Guido
    Its a pitty the mondial repair thread is closed and removed...all this superstuff from Urs should be preserved for the future and accessible to all mondialist.
    Maybe in the blog from Tijn, Mvt...

    Guido
     
  18. Rapalyea

    Rapalyea Formula 3

    Jun 18, 2013
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    David Rapalyea alias
    Two years now I have expected the passenger window lift to die. I lower it every day in warm weather (seven months were I live). It just keeps limping along though.
     

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