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Thread: Turn signal flasher??

Discuss the Austin Healey Sprite and the MG Midget. Two different but similar cars sometimes referred to collectively as the Spridget.

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    Yoda
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    Turn signal flasher??

    Just changed flasher unit's in my Mk3 Sprite. The one a PO fitted flashed really fast so I changed to an old one I had lying around. Flash speed is now right but my dash indicators now only give a single flash and that is it. Any idea's???

    Kurt
    65,66 Midget
    57 Berkeley, MGA
    Working on quality rather than quantity

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    Jedi Trainee Joe Schlosser's Avatar
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    Re: Turn signal flasher??

    Would love to have tha answer to that. By signals flash on BE but dash lamp only flashes once for the right one. I have been trouble shooting for several years byt no luck. Only thing left is to change the lamp holder.
    Joe Schlosser
    SCCA National License, Retired
    60 Bugeye, since 1966
    SCCA FP, sold but not forgotten

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    Yoda Jim_Gruber's Avatar
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    Re: Turn signal flasher??

    Clean off the green. Polish up those connections.
    Jim Gruber - Tampa/Riverview FL
    Bugsy I - '68 Sprite w BE Bonnet - Gone but not forgotten
    Bugsy IV - '60 Bugeye - 1,275+.040 and a 5-Speed - CA Car - 2nd Owner from new -

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    Re: Turn signal flasher??

    Suppose that is it? They flashed with the flasher that was on the car. Just way too fast.

    Kurt
    65,66 Midget
    57 Berkeley, MGA
    Working on quality rather than quantity

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    Yoda dklawson's Avatar
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    Re: Turn signal flasher??

    Traditional flashers are thermal/current actuated switches. Because of that, if you have the wrong light bulbs installed (too many or too few Watts) then the flasher will operate at the "wrong" speed or not at all.

    Does your car use the 3-terminal or 2-Terminal flasher? On 3-terminal installations, one terminal is specifically to drive a single dash mounted indicator light. I have see a couple of different wiring schematics for the 2-terminal flashers.
    Doug L.
    '64 Morris Mini Cooper-S 1275
    '67 Triumph GT6 Mk1

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    Re: Turn signal flasher??

    Three terminal, Doug. They flashed way too fast with the flasher the PO fitted. Car is a Canadian spec with bulb's that draw more current than US so no surprise with the speed.

    Kurt
    65,66 Midget
    57 Berkeley, MGA
    Working on quality rather than quantity

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    Yoda dklawson's Avatar
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    Re: Turn signal flasher??

    With the 3-terminal flashers make sure you have:
    Green/Brown on the "L" terminal,
    Green/Purple on the "P" terminal, and
    Green on the "B" terminal (or "X" for an aftermarket U.S. flasher).

    "B" is power in from the battery typically after passing through the hazard switch when fitted.
    "L" is for the 'load'... the signal bulbs.
    "P" is for an output dedicated for the indicator bulb in the dash.
    Doug L.
    '64 Morris Mini Cooper-S 1275
    '67 Triumph GT6 Mk1

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    Re: Turn signal flasher??

    That could be wrong. I do remember it was wrong on my MGA years ago and gave me fits. I'll check it out.
    65,66 Midget
    57 Berkeley, MGA
    Working on quality rather than quantity

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    Yoda dklawson's Avatar
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    Re: Turn signal flasher??

    The MGA should have the same flasher wiring. For a refresher on what's supposed to be happening, see the link below to Barney Gaylord's MGA Guru website and his pages about the flasher.
    https://mgaguru.com/mgtech/electric/et104.htm

    To clarify my earlier post, the load wire on "L" is supposed to be "light-green/brown" while the supply wire in on the "B" terminal should be a darker green. The indicator lamp wire may also be considered "light-green/purple".
    Doug L.
    '64 Morris Mini Cooper-S 1275
    '67 Triumph GT6 Mk1

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