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spark plugs

Discussion in 'XJ Technical Chat' started by 81secacafe, May 23, 2009.

  1. 81secacafe

    81secacafe New Member

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    I have a 1982 xj 750, and I dont have a manual for it. I was wondering if anyone could tell me what my plugs should be gapped at. Thanks for your time
     
    81secacafe, May 23, 2009
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  2. motorduck

    motorduck Member

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    BPR7ES/NGK or W22EPR-U/NIPPONDENSO
    0.7-0.8 mm. (0.028-0.031 in)
     
    motorduck, May 23, 2009
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  3. SQLGuy

    SQLGuy Well-Known Member

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    No. BP7ES, not R. The caps already have resistors in them, so the plugs should not.
     
    SQLGuy, May 23, 2009
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  4. Robert

    Robert Active Member

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    And you are allowed up to 0.032" on the big end of the gap.
     
    Robert, May 23, 2009
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  5. motorduck

    motorduck Member

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    My bad. I was going from a service manual, but I think it was the wrong one. Sorry.
     
    motorduck, May 23, 2009
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  6. beejer

    beejer New Member

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    The ND number is W22EP (like the NGK, no R in the part number). My manual has the non-metric gap at 0.023 ~ 0.032 in (0.7 ~ 0.8mm).
     
    beejer, May 23, 2009
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  7. wizard

    wizard Active Member

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    Must be a typo, it should be 28 - 32.
     
    wizard, May 23, 2009
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