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new 1154 bulbs too long for socket ????

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  • new 1154 bulbs too long for socket ????

    I've had this problem before. I bought new 6v bulbs today for a '52 Commander. I tried installing the bulbs in the tail sockets and they will not go it far enough to turn and lock. I pulled the wires up as far as they would go and still not enough room. What is the fix for this ???. Also I believe in the park lights I bought 1138's and have the same problem..thanks...brad

  • #2
    Compare the new bulb barrels with the old ones.

    Sometimes a little can be filed off the solder contact on the bulb end to shorten and get the clearance needed.

    If the height is a problem sometimes the spring length can be reduced by cutting off or replacing it. This reduces the height of the compressed spring which, right now, is fully collapsed and cannot squeeze any shorter.

    I presume you have checked the locking ear position (height from end) on the new bulbs and see whether the new bulbs have a staggered height as compared to the old bulb which has the pins at the same height.

    Lark Parker aka Trim Trader
    Lark Parker --Just an innocent possum strolling down life's highway.


    • #3
      quote:I tried installing the bulbs in the tail sockets and they will not go it far enough to turn and lock.
      Brad - check to make sure the contacts will actually move inside the socket. Sometimes they are frozen in the position they assumed when in contact with the old bulb. If the lead contacts on the bulb base are worn flat, as they sometimes are from being removed and reinstalled a few times, and the contacts in the socket cannot move down further for the greater length of the new, unworn contact points, then you can't get the bulb in far enough to turn and lock it in place. Dale


      • #4
        Problem solved...I installed new sockets made by "Caltherm" and purchased at O'reilly's. On the front of the '52 I drove the old socket out and drove in the new socket. Used 1154 bulbs 6v front and back. The old ones were rusty, springs shot, corrosion...Brad


        • #5
          Rhode Island Wiring has contacts, washers and springs; if you want to rebuild your original sockets.
          Mike M.


          • #6
            Thanks for the wire source. I did keep the sockets for future use....Brad