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Wales
by Joske Vermeule, September 1
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Forums39
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Jun 14th, 2026
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Joined: Jan 2014
Posts: 1,671
Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Jan 2014
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I haven't taken them off yet - maybe in the next week or so - I'll post length dimensions once they're off kankeL
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Joined: Aug 2009
Posts: 557
Talk Morgan Regular
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Talk Morgan Regular
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that would be great! thanks!
2016 M3W, Army Green Matte/Tan Leather, 17k miles
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Joined: Jul 2013
Posts: 3,732 Likes: 79
Talk Morgan Addict
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OP
Talk Morgan Addict
Joined: Jul 2013
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I'm planning to get some Magnacor leads made up.
I'll need to get the measurements this weekend and will post them up.
Red Leader 
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Joined: Nov 2013
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: Nov 2013
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What should the plug gap be? Today I went for a run cold 3c but dry. On return I washed the car & decided to check the plug gap to see if starting could be improved. The book says 0.97 to 1.07 mm but the ones removed were nearer 0.65 mm (0.025 inch). They are the standard Champion RA8HC copper tip. I opened them up & it would not start. I checked an old plug from last service & it was 0.65 so removed them & closed gap again but still wont start. There are sparks & it seems to be trying to catch after much turning over.
Perhaps my washing made something shorting out. Pushed in to the garage & battery on charge & I'll try again after thing had a chance to dry.
Tim
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Joined: Jul 2013
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I've measured the leads:
55cm long
90 degree plug at the coil pack end. The internal connector has an inside diameter of 4mm and outside dia of 5mm. The rubber boot ID is 13mm
I couldn't see a manufacturer's name on the coil pack but it had #0313# printed on it.
The Spark plug end has an elbow cap for a 12mm spark plug,
I have a rough drawing but at the moment can't seem to upload it to TM so will add this later.
Red Leader
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Joined: May 2012
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
Joined: May 2012
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S & S service manual states .035-.045" withe a torque setting of 11-18ft/lbs and anti seize compound on the threads.
I checked mine today at .045" so closed them up to .040" middle limit.
Started in less than 1 revolution.
Its almost back together again now.
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Joined: Nov 2013
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Talk Morgan Enthusiast
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Thanks Dab I,'ll try that tomorrow
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Joined: Aug 2012
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Talk Morgan Expert
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Talk Morgan Expert
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Joined: Nov 2013
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Talk Morgan Enthusiast
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Talk Morgan Enthusiast
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All sorted now & running again. Tried again with wider plug gaps & still would not start so called the AA. We tried swapping plugs & heating them & switch cleaner on the fuel injector connectors but still no go. He them put a meter on the the injector connectors & reckoned they were still damp despite my WD40 application. Dried off & now running again - joy!
Next wash I'll keep the hose away from the top of the engine.
Tim
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Joined: Jul 2013
Posts: 3,732 Likes: 79
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Good news Tim and it sounds like the AA chap knew what he was doing 
Red Leader
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