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Thread: Mystery Knob?

  1. #1
    Join Date
    Nov 2006
    Location
    Boston
    Posts
    28

    Default Mystery Knob?

    Any ideas what this knob is for? It doesn't appear to be attached to anything, it's not the cold start. If I pull it out it's attached to a long spiraled rod.
    1970 Series IIA


  2. #2
    Join Date
    Nov 2006
    Location
    Redding, CT
    Posts
    1,497

    Default

    Is it the heat adjuster? Open/closes valve for water to the heater matrix?

  3. #3
    Join Date
    Oct 2006
    Location
    Kingsport
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    613

    Default

    A "long spiraled rod" is a housing for a push/pull cable. Choke, heater valve control, those are the two that are normally on a Series. Any options on this particular vehicle that aren't "normal"?
    -L

    '72 SIII SW 88"
    '60 SII 88" RHD

  4. #4
    Join Date
    Nov 2006
    Location
    Boston
    Posts
    28

    Default

    Im beginning to believe that there are a number of items that "aren't normal" ie: turn signals on the side panels.

  5. #5
    Join Date
    Nov 2006
    Location
    CT
    Posts
    290

    Default

    Quote Originally Posted by Jared
    Any ideas what this knob is for? It doesn't appear to be attached to anything, it's not the cold start. If I pull it out it's attached to a long spiraled rod.
    1970 Series IIA

    I have a 1971 88" with the same control in the same place. That is the heater control knob. It is supposed to be attached to the coolant valve on top of the head. The valve often leaks, and many owners deleted the valve rather than get a new one, since it is wide open all winter anyway. Pulled all the way out is closed (no heat) and all the way in is 'full blast'; although we all know that is quite optimistic...

  6. #6
    Join Date
    Oct 2006
    Location
    Plum Island
    Posts
    14

    Default

    Looks like the switch for the wipers on mine.
    Tight lines

  7. #7
    Join Date
    Apr 2006
    Location
    Vermont
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    26

    Default

    Hey Jared,

    As mentioned in the previous posts, your mystery knob is connected to the heater control cable. This setup appeared on the North American bound late Series IIA vehicles. Here are a couple parts book diagrams showing the related componants in the heating system.

    Arthur




    Arthur Patsouris
    Sales Manager
    Rovers North Sales Team

  8. #8
    Join Date
    Nov 2006
    Location
    Boston
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    28

    Default

    Arthur,
    Wow that is really helpful thanks. I was wondering exactly what model I had as I have found some quirky items along the way.
    Which book is that from; it doesnt look like a Haynes Manual?
    jared

  9. #9
    Join Date
    Apr 2006
    Location
    Vermont
    Posts
    26

    Default

    Jared,

    These diagrams are from a supplimental parts manual that was published for the North American models. Unfortunately, it's been out of print for years. If you need specific info feel free to pm me or give me a call and I'll be glad to help you out.
    Arthur Patsouris
    Sales Manager
    Rovers North Sales Team

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