Headlamp housing height adjustment | FerrariChat

Headlamp housing height adjustment

Discussion in '348/355' started by kenneyd, Feb 6, 2017.

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  1. kenneyd

    kenneyd Formula 3

    Sep 30, 2014
    2,027
    NE FL
    Full Name:
    Ken
    #1 kenneyd, Feb 6, 2017
    Last edited: Feb 6, 2017
    I went to change my low beams bulbs today and wasn't able to get my right side glass assembly out. I then noticed my right headlamp is about 1/2 - 3/4" lower then my left headlight, which doesnt leave ft a large enough hole to pull the glass out.
    They are completely equal height when down, only uneven when raised

    My maintenance records show the right side got a new motor a 3 years ago. dont know if this is related or not


    I thought it would be as easy as adjusting the two rubber stops in the back, but that didn't change anything. When i open the headlamps, it stops on its own before the rubber stops. I couldnt find a procedure in the workshop manual or the interwebs, any help?
     
  2. iPlane

    iPlane Karting

    Jul 22, 2009
    91
    Zürich, Switzerland
    Full Name:
    Fernando
    Hi Ken,

    I think (not 100% sure) that they can be regulated via the connecting rod. There is a nut in the middle of the rod, which I can only imagine can be used exactly for that purpose.

    I remember reading somewhere in the Workshop manual that the light assembly was also equipped with a mechanism that allowed it to be regulated horizontally... unfortunately, I don't remember the details.

    Anyway, here is a link to the schematics. The rod I am speaking about is #6.

    http://www.eurospares.co.uk/userImages/020/Large/020_140.gif

    Fer
     
  3. kenneyd

    kenneyd Formula 3

    Sep 30, 2014
    2,027
    NE FL
    Full Name:
    Ken
    I was trying to understand the system, The rod will definitely adjust it when going up but wouldn't it also adjust the lowered height?

    Sent from my LGLS990 using Tapatalk
     
  4. iPlane

    iPlane Karting

    Jul 22, 2009
    91
    Zürich, Switzerland
    Full Name:
    Fernando
  5. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
    37,274
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    Brian Crall
    Typically what happens is the bell crank is installed on the motor shaft in the wrong place. If your headlight goes up then down that is the problem and not the shaft length.
     
  6. kenneyd

    kenneyd Formula 3

    Sep 30, 2014
    2,027
    NE FL
    Full Name:
    Ken
    I love this forum.

    This was the problem, the bell crank was installed about 20 degrees off correct on the splines. I suppose it's possible it slipped, but the nut was pretty tight leading me to believe the shop that installed the new motor did it wrong.
    All the more reason to do it myself.

    Both lights are perfectly level open and closed

    Sent from my LGLS990 using Tapatalk
     
  7. taz355

    taz355 F1 Veteran
    Owner Silver Subscribed

    Feb 18, 2008
    6,019
    Indio Ca/ Alberta
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    Grant
    Exactly however it may work by adjusting the rod. Hard to explain but depending on the bellcranks position when closed will determine.
     
  8. Rifledriver

    Rifledriver Three Time F1 World Champ

    Apr 29, 2004
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    Brian Crall
    It cannot work correctly with the bell crank in the wrong position.
     
  9. Enzojr

    Enzojr F1 World Champ

    Dec 12, 2013
    14,001
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    Tomy
    Does someone have a pic of the bell crank ?
    Or a # to reference in the picture.
     
  10. kenneyd

    kenneyd Formula 3

    Sep 30, 2014
    2,027
    NE FL
    Full Name:
    Ken
    #10 kenneyd, Feb 8, 2017
    Last edited by a moderator: Sep 7, 2017
    Bell crank removed and splines visible.
    Headlight height before


    To explain the mechanics when its working properly.
    I think the motor doesn't go forward and back, it goes just around and around.
    When fully closed, the bellcrank is it its most aft position. IF you are looking rightside headlight from the trunk, you could say its at the 3oclock position and the rod to the headlight is pointing straight forward to the 9oclock position.
    When is fully opened, the bellcranks is pointed fully forwards at the 9oclock position, and the rods to the headlight is still pointed forward at the 9oclock.
    the reason my headlight wasnt opening the last 3/4" was because at full open, the bellcranks was at the 10oclock position. The previous "mechanic" adjusted the rod length to make it even when closed.

    Im probally not explaining this very well, just open your front hood and peek in there while the lights are going up and down an you will understand
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  11. iPlane

    iPlane Karting

    Jul 22, 2009
    91
    Zürich, Switzerland
    Full Name:
    Fernando
    I feel VERY stupid by asking this, but... how do you get the lights to up without having them turned on?

    I wanted to do this same thing the other day, and I ended up turning them on, and then switching the battery off with the battery switch.

    Yes, horrible method, I know... I'm sure there's a more elegant way to accomplish the same result. Please, enlighten me!
     
  12. Rifledriver

    Rifledriver Three Time F1 World Champ

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    Or have it done by someone who knows what they are doing and gives a ****.
     
  13. Enzojr

    Enzojr F1 World Champ

    Dec 12, 2013
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    This may be the only way, as you mentioned.
    Maybe someone else can add to the knowledge we currently have.

    Thanks for the pic and explanation.
     
  14. taz355

    taz355 F1 Veteran
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    Feb 18, 2008
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    This is what I was getting at. Had he left the rod alone and as Rifledriver put it installed belcrank in correct position it would have been ok.

    As Rifledriver corrected me and he is right if its in the correct bellcrank position rod adjustment wont work
     
  15. Alden

    Alden F1 Rookie
    Rossa Subscribed

    Apr 25, 2010
    3,689
    Central Florida
    It is actually a safe way to have the lights open so you can work on them and prevent them from "accidentally" closing and taking off part of your finger in the mechanism if the headlight switch is turned off.

    I have worked on my headlights in this manner several times and see no fault with the procedure other than using the OEM battery cut off, which some say is a fragile part.

    I guess you could pull the plugs from the lights themselves, but then you lose the safety feature.
    Alden
     
  16. phrogs

    phrogs F1 Veteran
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    Apr 13, 2004
    7,352
    Kzoo Michigan
    #16 phrogs, Feb 9, 2017
    Last edited by a moderator: Sep 7, 2017

    If I understand you're asking how does one raise and lower the light without the switch being turned on.


    There is a knob on the motor twist it in the correct direction and the motor lifts up or retracts down the bucket.

    Lots of turning is involved
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  17. Rifledriver

    Rifledriver Three Time F1 World Champ

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    Nothing at all fragile about the battery switch and it should be used in that way.
     
  18. taz355

    taz355 F1 Veteran
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    Feb 18, 2008
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    Brian is likely used to people saying he is correct but I do not know of any other way to do it safely other than the way Alden and Brian have suggested.
     

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