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Ignition Coil Caps - Order of Reassemble

Discussion in 'XJ Technical Chat' started by fiveofakind, Jun 5, 2014.

  1. fiveofakind

    fiveofakind Well-Known Member

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    In what order does the rebuild go: I don't remember.......Took both T-133 apart & can't remember the order....a senior moment...

    Do you drop the resistor core in first, followed by the tension spring, followed by the spring seat disc, and finally the brass cap plug ?

    On my 1982 XJ750J Maxim

    Outers #1 & #4 are TD T-134 Non Rebuildable

    Inners #2 & #3 are TD T-133 Rebuildable

    [​IMG]
     
    fiveofakind, Jun 5, 2014
    #1
  2. Linker

    Linker Member

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    Spring, Brass Disc, Resistor, then Brass Cap
     
    Linker, Jun 6, 2014
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  3. fiveofakind

    fiveofakind Well-Known Member

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    Can someoneconfirm if this is correct....I am not getting a ohm reading configured this way....

    Taken apart both resistor - test out at 4 to 5 K ohms for Caps# 2 & 3

    Bigfitz, Please confirm if you can......Thanks....
     
    fiveofakind, Jun 6, 2014
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  4. fiveofakind

    fiveofakind Well-Known Member

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    Outer Caps # 1 & 4 test good at 8.13k & 8.28k ohms

    so coils are testing at 11k plus caps at above give total resistance of 19k ohms ...I believe this is perfect with -0- resistance plugs BP7ES

    Just can't get a valid reading on plugs caps #2 & #3 or any reading at all
     
    fiveofakind, Jun 7, 2014
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  5. rocs82650

    rocs82650 Well-Known Member

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    Are you certain the brass disc is laying flat on top of the spring before you install the resistor core? Might try swapping the coils.

    Gary
     
    rocs82650, Jun 7, 2014
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  6. fiveofakind

    fiveofakind Well-Known Member

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    Yes, I am sure....
     
    fiveofakind, Jun 7, 2014
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  7. rocs82650

    rocs82650 Well-Known Member

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    Was it doing this prior to dis-assembling the caps? The coils are interchangeable. Swap the caps and re-test. Hope this helps.

    Gary
     
    rocs82650, Jun 7, 2014
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  8. fiveofakind

    fiveofakind Well-Known Member

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    Caps have been removed from coil wire......I am getting no spark at all to all 4 plugs......troubleshooting every componenet

    ignition Coils, Caps, TCI ignitor, Pickup Coils, Regulator, Starting Cutoff Ignition Relay, & Sidestand Relay, & Battery.....

    Process of elimination
     
    fiveofakind, Jun 7, 2014
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  9. Linker

    Linker Member

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    Take em apart and put together again. I found if I didn't get everything in just right I wouldn't get a reading but that I could after a bit of fiddling. Also the resistor cores mite be damaged.
     
    Linker, Jun 7, 2014
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  10. fiveofakind

    fiveofakind Well-Known Member

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    I am getting a reading from the resistor cores of 4-5k ohms......perfect....
     
    fiveofakind, Jun 7, 2014
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