Will 7" H4 headlight fit a /5 headlight bucket?

Discussion in 'Airheads' started by rbm, Jan 1, 2013.

  1. Schlivitz

    Schlivitz Mercury Freefall

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    Holy Shit BatMan! I'm gonna go out and run my kids away from my crusty old motorcycle right now!
    #21
  2. rbm

    rbm Adventurer

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    As promised, I'm updating this thread with my experience so far.

    Based on the great information I received, I contacted my local Part Source store (this is a Canadian aftermarket automotive supplier chain, part of the Canadian Tire brand) and asked about 7" round headlights for a 1972 Datsun 1200. They came up with a Hella Vision Plus 176mm HB2 Conversion Headlamp (part number 1A6 002 395 301 ). I ordered this light and received it yesterday. It fits the headlight bucket perfectly for diameter, however there is a 5mm gap between the back of the reflector and the shell. I will have to find a gasket material to fill that gap to provide pressure to stop the lamp from flopping about. The unit has a flat solid glass lens with very clear beam focus. It appears to take a standard H4 halogen bulb however it is supplied with a HB2 bulb for D.O.T. purposes. It is a very good replacement for the Slash 5 lens/reflector assembly. The only drawback to using this part is that it does not have a small bulb that can be used for a parking light. I will have to think about how I will solve that problem. I can post some pictures later when I have figured out the means I will use to secure the headlight assembly in the bucket.

    Thanks very much to everyone who helped me.
    #22
  3. victor441

    victor441 Long timer

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    hmm, so headlight spring clips won't work?? that is how the lens is secured on many bikes. Have heard that there are 7" H4 reflectors that do have parking bulbs, many use them on British bikes, the original Lucas items had parking bulbs too...

    [​IMG]
    #23
  4. rbm

    rbm Adventurer

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    Yes, they will. :doh
    #24
  5. DaveBall

    DaveBall Long timer

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    The parking bulb is a nice to have, but most people never bother using them as if left while parked, they will drain the battery. But, if you are determined to have one, keep an eye out for the original headlight for a VW bug from between 1950-1965, or there abouts. Most had the parking bulb socket in them back then. The originals took a 6 volt Tungsten bulb as the Quartz Halogen was not available then. But, they were often retrofited with 12 volt H4 bulbs as people converted the original Bugs to 12 volt.

    Damn, I am really showing my age, with all this old stuff, from my ill spent youth, hopping up little cars (tuner cars?)way before it became cool.
    #25
  6. mpilot

    mpilot Adventurer

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    #26
  7. Pokie

    Pokie Just plain Pokie.

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    Back in the 70s Cibie' made a direct replacement head light unit with rim for the BMW /5 series. The lens was concave and glass. You buy the unit, fit the bulb, pop off your old one and pop on the new Cibie'. They were quite nice but haven't seen any recently.

    In the 70s I used to put 7" Bosch, Cibie" and Corello quartz units into the /5 rim. I would start by nipping out the forward hole in the rim until the lens would almost fit then fileing the edge to smooth and let the lens fit in. I would then turn the unit around and work the lens unit into the rim (after grinding off the locating clips on the quartz units). Fit all the clips and away it went. All for less than 1/4 the price of the BMW quartz units.
    #27