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Thread: 2L core plugs - confused!!

  1. 14th October 2013, 11:48 AM #1
    ashhhhh Guest

    2L core plugs - confused!!

    Hey all,

    I have to replace the threaded core plug which sits at the front of the motor, and is partially covered by the manifold.

    Is it, or is it not 1" BsCon on the 2L engine('55 in my case)?
    I have read info which says it is, others seem to have no idea..

    I don't have easy access to thread gauges etc and don't really want to start buying random items without being sure.

    Cheers,
    Ash
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  2. 14th October 2013, 05:16 PM #2
    JDNSW's Avatar
    JDNSW
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    This was discussed here at length several years ago. I can't remember the answer, but a search should be able to find it. I seem to remember it is a very unusual thread!

    John
    John

    JDNSW
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  3. 14th October 2013, 06:28 PM #3
    ashhhhh Guest
    Yeah I've searched a lot and find conflicting info.

    Bugger it, I managed to locate and purchase a 1" BSCon tap today - I'll see how it goes! (And confirm if it's right)
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  4. 15th October 2013, 06:45 AM #4
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    Brad110
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    Core plug

    I put my finger thru one whilst cleaning the engine before a weekend trip...

    I had a plug out of a TD5 and it went straight in.

    Go figure.

    So I bought 3 more.

    Worth a try. Let us know if it works.
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  5. 15th October 2013, 07:34 AM #5
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    mick88
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    It should be a "BS Electrical Conduit Thread" and have 16 threads per inch (TPI) for that diameter. If you clean the thread out you should be able to check it by using a 3/8 Whitworth bolt as a thread gauge, as it is also 16 TPI.


    Cheers, Mick.
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  6. 15th October 2013, 09:10 PM #6
    back_in
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    thread

    Hi all
    have to say it all over again
    the thread is British standard pipe
    I have a quantity of plugs
    let me know what the out-side diameter of the thread as I have two different ones, believe one is 1600 other 2lt.
    let me know what you wish to pay as I bought them years ago and forgotten what they cost
    cheers
    Ian
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  7. 15th October 2013, 09:16 PM #7
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    Col.Coleman
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    IIRC Incisor sells them in the "Dave's interesting Things" shop. He had them made up by a machine shop.

    CC

    edit: Yep

    http://www.davesitshop.com/davesitsh...ewCat&catId=33
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