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Thread: Plug gap for 907?

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    Plug gap for 907?

    We are working on a 907 out of a Jensen-Healey.
    I can't find the points or spark plug gap anywhere.
    Please help! Thank you for your consideration.
    Regards, Ray
    Panama City Beach, FL

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    Luke Skywalker LarryK's Avatar
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    Re: Plug gap for 907?

    I looked this up in a 80s tune book. 68-70 Lotus Twin Cam, Dwell 57-63, Gap .015, Plug gap .025, Timing 12 deg BTDC. Looks typical of the British 4 cyl points and plugs. Hope this gives you a target to get or a starting point. Maybe a Jensen owner can send a picture of the owner manual page or something more accurate. I assume this is for carb engine as fuel injection has different timing, which I cannot find, except on Jenson Healy Forum ( sorry Basil).
    Larry K
    58 Jag 3.4 MK 1 auto under restoration, 57 Jag 3.4 MK1 manual ,
    03 Cooper S, 2011 Cooper S Countryman, 2011 Land Rover LR4 HSE LUX, 1964 Valiant V200
    Also had , 68 Cortina 1600E, 64 Spit 4 & 80 1500, 73 GT6 3, 71 XJ6, 79 XJ6, 86 XJS V-12, 53 XK120 OTS.

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    Re: Plug gap for 907?

    Thank you LarryK. This gives me a starting point. It is a Stromberg carb engine.

    Regards, Ray

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