348 spyder pop up headlight problem | FerrariChat

348 spyder pop up headlight problem

Discussion in '348/355' started by jrobbins, Jul 5, 2008.

This site may earn a commission from merchant affiliate links, including eBay, Amazon, Skimlinks, and others.

  1. jrobbins

    jrobbins Karting

    Aug 9, 2005
    93
    Ottawa, Canada
    Full Name:
    J.D. Robbins
    Was driving home tonight after dark, turned on my headlights on my 348 spyder but one side did not go up. The headlights were on, it just didn't pop up.

    I checked the 7.5A fuse and it was blown. I replaced it but it immediately blew too. Tried a 10A fuse: same thing, blew right away. Stopped there.

    The popup looks about 1/10th open (not completely closed). Is it stuck? Can I somehow get it to go back down and start over?

    Any recommendations on how to diagnose would be appreciated.

    J
     
  2. Night life

    Night life F1 Veteran
    Silver Subscribed

    Dec 1, 2007
    7,291
    The city that rhymes with fun in Canada
    Full Name:
    Roberto
    Read your manual or go to the 348 primer there is a way to do it manually, maybe it is just stuck?

    Good luck
     
  3. jrobbins

    jrobbins Karting

    Aug 9, 2005
    93
    Ottawa, Canada
    Full Name:
    J.D. Robbins
    The manual on page L15 says to "Disconnect the headlight raising motor rods" but has no diagram on how to do this. Are they hard to disconnect? Anyone have a service manual with a blow out and instructions? It's very tight in there. All I can see is the knob to raise the headlights.

    J


     
  4. Miltonian

    Miltonian F1 Veteran

    Dec 11, 2002
    5,966
    Milton, Wash.
    Full Name:
    Jeff B.
    If it looks like the headlight is about 1/10 open, and it's blowing the fuse, then check to see if the headlight housing is contacting the trunk lid or the fender, instead of being centered in the opening. It's possible (we've seen it before) that the spot welds that hold the headlight assembly together have come apart, and the bucket is now crooked. If this happens, the bucket can't come up straight, and when it hits the trunk lid, it blows the fuse. Yes, things are tight in there!
     
  5. jrobbins

    jrobbins Karting

    Aug 9, 2005
    93
    Ottawa, Canada
    Full Name:
    J.D. Robbins
    I checked and the headlight housing is completely straight. It isn't contacting anything, but it seems rather stuck. I can't move it either direction by hand. However, the bucket looks fine.

    Any advice on how to disconnect the headlight raising motors rods?

    J

     
  6. Miltonian

    Miltonian F1 Veteran

    Dec 11, 2002
    5,966
    Milton, Wash.
    Full Name:
    Jeff B.
    I'm not sure this will work, but here is an old thread on the subject:

    http://www.ferrarichat.com/discus/messages/256120/189909.html

    There is an arm on the side of the headlight motor that connects to the linkage between the motor and the bucket. The arm is held on to the motor shaft with a single nut - hard to reach - the linkage has ball sockets on each end. I can post the diagram from the parts book if you wish to see it.
     
  7. jrobbins

    jrobbins Karting

    Aug 9, 2005
    93
    Ottawa, Canada
    Full Name:
    J.D. Robbins
    If you could post a diagram, that would be great! I'll then follow your expert instruction and try to free it.

    J


     
  8. jrobbins

    jrobbins Karting

    Aug 9, 2005
    93
    Ottawa, Canada
    Full Name:
    J.D. Robbins
    Anyone? Anyone? Bueller?
     
  9. Miltonian

    Miltonian F1 Veteran

    Dec 11, 2002
    5,966
    Milton, Wash.
    Full Name:
    Jeff B.
    #9 Miltonian, Jul 9, 2008
    Last edited by a moderator: Sep 7, 2017
  10. jrobbins

    jrobbins Karting

    Aug 9, 2005
    93
    Ottawa, Canada
    Full Name:
    J.D. Robbins
    Not yet, but I really appreciate this blow up. It is much more clear now. I have to disconnect the arm from the motor, manually raise the headlight with the manual knob, reconnect and test with a new fuse, correct?

    J
     
  11. jrobbins

    jrobbins Karting

    Aug 9, 2005
    93
    Ottawa, Canada
    Full Name:
    J.D. Robbins
    Based on this diagram, which part (by number) is the easiest to disconnect to accomplish this task?

    Thanks again.

    J
     
  12. Miltonian

    Miltonian F1 Veteran

    Dec 11, 2002
    5,966
    Milton, Wash.
    Full Name:
    Jeff B.
    #12 Miltonian, Jul 10, 2008
    Last edited: Jul 10, 2008
    I just looked in the owners handbook, what it's saying is nonsense.

    "If the electric headlight raising device fails, proceed as follows: disconnect the headlight raising motor rods. Turn Knob A until headlights are fully raised."

    Well, sorry Enzo, but if you disconnect the rods, then the motor isn't attached to the bucket, and you can turn knob A until your fingers fall off and the headlight won't go up or down.

    Here's what I would suggest. Remove the relay that controls the MOTOR for the headlight in question. Not the relay for the light, but the relay for the motor. It's shown in the diagram. Then turn the knob on top of the headlight motor clockwise and see if the bucket goes up. It takes quite a few turns, probably 20 or more. Once it's all the way up, look around the bucket and see if it's hitting anywhere. You can watch the linkage as the bucket is going up to see if it's connected and working properly. You're looking for a mechanical problem that would account for the electrical problem. If everything looks OK, then plug the relay back in and the headlight should immediately close by itself. Make sure no one has their fingers around the bucket, the motor is VERY strong and it will hurt if your fingers get pinched. I recommend NOT turning the knob while the relay is in place, because the motor "jumps" when it hits a certain point and raises the bucket very quickly.

    OK - if the bucket will raise via the knob, then you know that the mechanical part is OK (unless the linkage is "clocked" wrong). You need to find out what is blowing the fuse. It could be that the motor is frozen, or the linkage is stuck, or the bucket is crooked, or there is a direct ground in the wires. First things first. See if the bucket can be raised manually.

    Just a thought - has the front of the car been "curbed" lately? There's a wiring bundle clipped to the frame of the car right behind the front spoiler, and it's remotely possible that the wires to the headlight motor may have been crunched and shorted out.

    Can you think of any instance where someone may have turned on the headlights while someone else was pushing down on the bucket, or the buckets were covered with snow/ice (in July??).

    Has the car had any body work on the front end?

    You'll be able to fix this, I know.
     
  13. jm348

    jm348 F1 Rookie
    Owner Silver Subscribed

    Mar 21, 2007
    3,017
    Redondo Beach, CA
    Full Name:
    Jeff M
    Do you have a Ferrari 348 SPIDER or a Mitsubishi Eclipse SPYDER? :D
     
  14. jrobbins

    jrobbins Karting

    Aug 9, 2005
    93
    Ottawa, Canada
    Full Name:
    J.D. Robbins

    Thanks Miltonian!

    To answer your questions:

    My car hasn't been curbed lately, nor has any front end work been done.

    Here is how my headlight popup became jammed: I was driving home doing about 100km/h on a quiet highway so I decided to turn my lights on and off by turning the light knob. When I turned them back on, only one came back up. Now, initially I had thought that I'd burned out a headlight since I couldn't see the popup. But when I got home, I realized that the bulb wasn't burned out but rather the popup didn't come back.

    I checked the fuse and it was blown, so I replaced it. It blew right away. I tried a 10A fuse: same thing.

    I realized that the popup was not quite down, so I'm assuming that it is trying to come back up but is stuck.

    I'll follow your expert advise and raise the popup after removing the relay for the motor. I'm assuming I'll need to place a fuse back in before putting the relay back?

    Also, if you can tell me which part number is the quickest way to remove the control arm (if the above fails), that would be great.

    I'll post my results once I have them!

    Thanks again.

    J
     
  15. Miltonian

    Miltonian F1 Veteran

    Dec 11, 2002
    5,966
    Milton, Wash.
    Full Name:
    Jeff B.
    Yes, remove the relay, then re-install a fuse of the correct amperage, then try rotating the knob and see if bucket will raise/lower.

    Ordinarily, I would say remove nut #14 from the end of shaft #15, but you can't get at nut #14 unless the bucket is raised. So you would have to get in there with a long screwdriver blade and pop the "C" clip off one end of the adjustable arm. It's certain that the clip will fall down into the cavity below the bucket, hopefully you can retrieve it. If not, you can get another one at any auto parts store. Once the circlip is off, you can pull the ball socket off which will free the motor from the bucket. It would be best to remove the ball socket from the end nearer to the motor, not the end nearer to the bucket. You don't want that adjustable arm getting jammed against something. Once that adjustable arm is off, you SHOULD be able to raise and lower the bucket by hand, and you SHOULD be able to cycle the motor via the knob on top.

    But try the test in my last post before you go disconnecting the arm, and see what happens. You need to find out if the bucket can be raised by turning the knob (with relay out).

    Anyone else care to pitch in with suggestions?
     
  16. jrobbins

    jrobbins Karting

    Aug 9, 2005
    93
    Ottawa, Canada
    Full Name:
    J.D. Robbins

    Hi again!

    Well, I followed your suggestion: I went and pulled the relays for the motors (both just to be sure), turned the knob for about 20 turns until it was fully raised, reinserted the relay and fuses, and voila, it went down properly. I then turned the switch on the steering column stalk and both headlights popped up just fine.

    So my problem is solved. I'm assuming that the problem originally was that the fuse simply blew during the 'up' portion of the popping up and froze the motor in a way that it could not actuate without being manually raised.

    I turned them on and off a few times tonight and they worked properly, without noise and without incident.

    Thanks to Miltonian for the expert advice and diagram!

    J
     
  17. Night life

    Night life F1 Veteran
    Silver Subscribed

    Dec 1, 2007
    7,291
    The city that rhymes with fun in Canada
    Full Name:
    Roberto
    Told ya it was stuck..;)

    I'm glad it worked out for you that must be a stress relief.
     

Share This Page