Help with headlamp pod motor | FerrariChat

Help with headlamp pod motor

Discussion in '348/355' started by lotusk, Oct 18, 2015.

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  1. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK
    ....

    Can anyone help

    I just fitted a new RH headlamp pod motor in my 355...

    I cannot get the 2 pods to synchronise....when the left one is closed the newly fitted RH is open and vice versa...

    I've tried various things like closing the RH by hand to match the LH but as soon as i turn the lights on they are unsynchronised


    Any ideas?
     
  2. Qavion

    Qavion F1 World Champ
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    Feb 20, 2015
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    Is there any way of mixing up the electrical plugs or reversing the polarity? The wiring diagram shows 3 plugs.
     
  3. 4rePhill

    4rePhill F1 Veteran

    Oct 18, 2009
    8,267
    Worcester, England
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    Phill J
    When I had My 348 serviced last year I got talking to the mechanics about electrical issues with the car and they told Me the weirdest one they'd encountered was a 355 where, when the headlights were switched on, only one pod raised.

    Then, when the lights were switched off, the raised pod lowered and the other pod raised up.

    When the lights were switched back on, the raised pod lowered and the other pod raised up again.

    They tried all manner of resets of both pods but nothing would work. Even with both pods in the down position to start with, when the lights were switched on, only one pod raised up whilst the other stayed down, and on switching off the lights, the raised pod lowered and the other pod raised up.

    In the end they contacted another Ferrari specialist who told them that they'd encountered the exact same thing in the past and it turned out to be corrosion on the underside of the front trunk fuse panel.

    When the fuse panel was checked they found it was corroded and so had to replace the panel. After that, the light pods worked perfectly.

    I'm not saying that this is your issue but it might be worth looking into.
     
  4. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK
    Thanks Phil good info....but...

    I got both pods in sync by fiddling around somehow...

    Now the last detail is how to get the RH pod to open at the same exact height as the LH...
    ....it's opening a few mm's lower....i think it has something to do with the connecting bar from the motor to the turnbuckle....
     
  5. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
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    #5 lotusk, Oct 18, 2015
    Last edited: Oct 18, 2015

    Thanks Ian

    Not this though...i tried reversing the 2 wire connectors...this made the pod go craazzeee...opening and closing like a maniac!!!!
     
  6. m.stojanovic

    m.stojanovic F1 Rookie
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    The headlight motors always turn in the same direction: turn and stop - pod up; continue turning in the same direction and stop - pod down (they DO NOT operate turn forward - pod up; turn reverse - pod down). So DO NOT reverse the two wires going to the motor.
     
  7. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK

    Right.

    What is the correct way to adjust the pod to be about 3mm higher when open?
     
  8. 4rePhill

    4rePhill F1 Veteran

    Oct 18, 2009
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    Phill J
    #8 4rePhill, Oct 18, 2015
    Last edited by a moderator: Sep 7, 2017
    Glad to hear you're getting there with this issue. :)

    It's not hitting the upper light adjustment pin too early is it?

    No.8 below:
    Image Unavailable, Please Login
     
  9. plugzit

    plugzit F1 Veteran
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    Bruce Bogart
    You probably need to adjust the splined connector on the linkage between the motor and adjusting linkage. They strip. They slip. Very small splines.
     
  10. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK
    Negative
     
  11. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
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    Yup

    Something not right in my linkage
    I need to lengthen the turnbuckle adjuster.....cannot do this whilst pod is in car...

    Have to remove it again....!!!

    Think i'll order a whole new linkage...not expensive...miracle!
     
  12. plugzit

    plugzit F1 Veteran
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    #12 plugzit, Oct 18, 2015
    Last edited by a moderator: Sep 7, 2017
  13. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK

    Nice pic..thanku

    Interesting how the turnbuckle is made by SPAL ...same as the cooling fans

    I need to lengthen the turnbuckle to get the pod to stay open a few mm's higher...
    Just cannot do it whilst its in the car

    Ordered a new one...all the parts as shown in your pic for around 50 usd👍
     
  14. Qavion

    Qavion F1 World Champ
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    So apparently there IS a way of mixing up the wires :) Seems there are no safeguards against this kind of thing (other than colour-coded wiring).

    Fascinating. I assume the direction change is achieved mechanically? It always amazes me what can be done mechanically in a device like this. No fancy electronics required. It's the same on aircraft. Electronics is no longer a surprise these days, but the mechanical inventiveness of people is astonishing.

    Having said that, people go and spoil it all by fitting plastic gears in those mechanisms... which fall apart (a-la-Lotus Esprit/Corvette pop-up headlights)

    Good luck with the linkage, Lotusk ;)
     
  15. lotusk

    lotusk Formula 3

    Nov 3, 2003
    1,840
    London UK
    Thanks Ian
     
  16. m.stojanovic

    m.stojanovic F1 Rookie
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    Nothing very sophisticated, just like the engine crankshaft - half turn, piston up; half turn, piston down.
     

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