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Thread: Rear reflectors BJ7

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  1. #21
    Darth Vader John Turney's Avatar
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    Re: Rear reflectors BJ7

    Quote Originally Posted by RAC68 View Post
    John,

    I thought the pictures of your tail lights seemed brighter then standard and the bulbs you referenced seem a very good addition I would like. How is the heat generation of these high output incandescents?

    Ray(64BJ8P1)
    Hi Ray,

    The higher output incandescent bulbs probably do have higher heat output, but my lenses are glass, so it hasn't been an issue. If I get a chance, I can use a IR thermometer to measure the difference.

    One of the issues I did discover in my tail light improvement quest was that it is critical that the bulb be centered in the lens. Originally, my right-hand tail light was much dimmer than the left one. Usually, that is because of a poor ground, but that wasn't my case, and with the lens off, both lights were equally bright. The judicious use of a 1/2" dowel to adjust the socket so the filaments are in the middle of the lens made a world of difference.
    John, BN4

  2. #22
    Luke Skywalker RAC68's Avatar
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    Re: Rear reflectors BJ7

    Hi John,

    As usual from you, a well designed and researched improvement. What gets me is the 1158 bulb is reasonably priced and I would do this change before considering any LED for the same function.

    Thank you,
    Ray(64BJ8P1)

  3. #23
    Darth Vader steveg's Avatar
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    Re: Rear reflectors BJ7

    John - do the LED bulbs flash correctly without needing any additional resistors?
    Steve Gerow
    Altadena, CA, USA
    Maker of most complete Big Healey rear disc kit
    Check out my galleries:
    http://www.pbase.com/stevegerow

  4. #24
    Darth Vader John Turney's Avatar
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    Re: Rear reflectors BJ7

    Quote Originally Posted by steveg View Post
    John - do the LED bulbs flash correctly without needing any additional resistors?
    No resistors required. The LEDs are in parallel with the brake/turn signal leads on the regular tail/brake/turn lights. The incandescent bulbs provide sufficient load for the flasher relay.
    John, BN4

  5. #25
    Great Pumpkin Keoke's Avatar
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    Re: Rear reflectors BJ7

    Quote Originally Posted by RAC68 View Post
    Hi John,

    As usual from you, a well designed and researched improvement. What gets me is the 1158 bulb is reasonably priced and I would do this change before considering any LED for the same function.


    Thank you,
    Ray(64BJ8P1)
    Amperage, Amperage,Amperage RAY!
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  6. #26
    Luke Skywalker RAC68's Avatar
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    Re: Rear reflectors BJ7

    Keoke,

    The savings of Amperage, heat, or even longevity is less important then luminescence generated. Although I have LEDs installed in the reflectors, the incandescent bulbs described by John seem to produce a more obvious presentation for the main tail lights then the LEDs I have, to date, researched.

    Rat(64BJ8P1)

  7. #27
    Darth Vader John Turney's Avatar
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    Re: Rear reflectors BJ7

    Yes, the 50/14 cp lights do require more amperage than the 21/6 cp 1157s, but not that much more. I have some notes from when I tested them, but I can no longer understand what I wrote.
    John, BN4

  8. #28
    Darth Vader steveg's Avatar
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    Re: Rear reflectors BJ7

    After I melted my first set of reflectors with halogen bulbs...

    ...following John T's lead, converted my reflectors to the LED 1156s:
    LEDsocketInSitu.jpg
    I like to mechanically clamp the lights to the shroud.

    LEDtailSocketPieces.JPG
    ReflectorSideRods.jpgReflectorRubberhole.jpg
    I have the original-shape reflector bezels and wanted to keep their rubbers which have the large holes previously made for the halogen reflectors.

    LEDtailSocket1.jpg Smaller washer fits inside rubber; LED light rim rests against 3/4" hole; 10-24 rods are loctited in place; thumbnuts made from 10-24 rivet nuts. Yoke 1/2" x 1/16" aluminum. Large washer made from 2" fender washer.

    LEDsocketSide.jpg
    Large washer may be eliminated as the yoke can bear directly against the shroud. I covered it with 3 layers of duct tape to help seal off the opening as the lens rubber doesn't seal all that well.

    Addendum: the depth of the yoke is pretty inflexible. It's determined by the distance from the shroud to the flange on the bulb socket with the small washer installed in the rubber and firmly pressed against the outside of the shroud. I had to file away the threads adjacent to the bulb slightly for clearance. The spacing of the threaded rods is determined by the span of the holes on the bulb socket mounting plate.

    In retrospect: if one were to use the large washer, keying the yoke to the square openings is unnecessary. One could just file openings for the threaded rods with a rattail file and have the yoke butt directly against the washer surface. Neither the yoke nor washer are going anywhere - this would make it easier to adjust the length of the yoke.
    Last edited by steveg; 11-27-2017 at 01:04 AM.
    Steve Gerow
    Altadena, CA, USA
    Maker of most complete Big Healey rear disc kit
    Check out my galleries:
    http://www.pbase.com/stevegerow

  9. #29
    Yoda Randy Forbes's Avatar
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    Re: Rear reflectors BJ7

    I'm impressed, and I'm hard to please!

    Very clever and robust; I can imagine how long it took to make/adapt the the pieces. The thumb-nuts: how ingenious!
    http://www.britishcarforum.com/bcf/image.php
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  10. #30
    Darth Vader steveg's Avatar
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    Re: Rear reflectors BJ7

    Randy - thank you for your generous comments. Had plenty of shop time for the project on Thanksgiving and Black Friday.
    Steve Gerow
    Altadena, CA, USA
    Maker of most complete Big Healey rear disc kit
    Check out my galleries:
    http://www.pbase.com/stevegerow

  11. #31
    Darth Vader John Turney's Avatar
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    Re: Rear reflectors BJ7

    Nice work Steve!
    John, BN4

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