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Thread: TR3A Steering Control Head Harness

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    TR3A Steering Control Head Harness

    Anyone here ever build a replacement control head harness? Tips? If so how easy was it to do, what wire sizes did you use, and did wrap it and if so with what?

    Thanks

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    Great Pumpkin TR3driver's Avatar
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    Re: TR3A Steering Control Head Harness

    I just bought one instead, they're readily available from the usual suspects.

    One problem I see is that the tiny ring terminals that go inside the control head are "specials", they have a locating tab that sticks into a hole in the Bakelite to keep the terminal from turning and perhaps shorting out.
    Randall
    56 TR3 TS13571L once and future daily driver
    71 Stag LE1473L waiting engine rebuild
    71-72-73 Stag LE2013LBW waiting OD gearbox rebuild

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    Re: TR3A Steering Control Head Harness

    I've searched two of the suppliers and haven't found the item. Did you have to ask for it specifically?

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    Senior Member ckeithjordan's Avatar
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    Re: TR3A Steering Control Head Harness

    British Wiring in Bally, PA has the harness:

    http://www.britishwiring.com/Steerin...ess-p/sc94.htm
    Keith

    1957 TR3 TS20447LO (2017-)
    1962 TR3B TCF1183L (1979-1982)
    1966 Spitfire MKII (1972-1975)

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    Re: TR3A Steering Control Head Harness

    So, it looks like no one has attempted a build?

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    Great Pumpkin TR3driver's Avatar
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    Re: TR3A Steering Control Head Harness

    Quote Originally Posted by PaulLongBl View Post
    I've searched two of the suppliers and haven't found the item. Did you have to ask for it specifically?
    No, I just ordered it the way I always do: Look up the factory part number in the factory parts book, then order that number from TRF. Web site says it's still available: UNTITLED.jpg
    Moss shows in stock, too.
    https://mossmotors.com/harness-inclu...-control-heads

    If you don't have a factory parts manual, I suggest you get one. TRF will sell you a paper copy, or you can download a PDF from
    https://drive.google.com/open?id=0B2...YzMjNjNGFiYzY4

    (I just added some bookmarks, circles and arrows ... to be used as evidence against us.)
    Randall
    56 TR3 TS13571L once and future daily driver
    71 Stag LE1473L waiting engine rebuild
    71-72-73 Stag LE2013LBW waiting OD gearbox rebuild

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    Re: TR3A Steering Control Head Harness

    I recall that the new harness that came with my new head had an orderly twist in the wires to facilitate twisting the harness down the tube.
    Bob

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    Yoda CJD's Avatar
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    Re: TR3A Steering Control Head Harness

    Yeah, the wire size is critical, as is the thickness of the wrapping. This is just one of those parts I wouldn't personally consider doing myself unless it wasn't available otherwise. Moss shows it for $38...which is higher than it used to be. I found mine on ebay for $22 and it's cloth wrapped. I could not build for that price.
    John

    1955 TR2

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