Autolite AN7

fixerupper · Oct 7, 2017

Do any of you have a cross reference to this plug? It is out of a pre or early Korean era generator with a Willy's engine. I can't find it in cross reference charts. Thanks.

steve706 · Oct 7, 2017

Champion J8 was the equivalent for the AN7

fixerupper · Oct 7, 2017

Thanks. These plugs have white tips instead of black and sooty and the valves and pistons look clean from peering down the spark plug holes. I don't know exactly how long it has sat not running but it might have sat for five years or longer. If the hour meter is correct it has 107 hours of run time in 65 or 70 some odd years. When I drained the oil it looked fairly clean but smelled very old and acted and looked like non-detergent. The engine speed is non adjustable, it's either wide open operating speed or nothing so it has never idled. It will have a decelerator after I'm done with it. When I drained the oil no condensation came out so that is a plus but it does have a closed ventilation system.

rustred · Oct 7, 2017

your thumb is in the way,lol. its possible to match by looking at electrode also and comparing.

fixerupper · Oct 7, 2017

Ya, thumbs get in the way sometimes. LOL It's not an extended tip. Something seems familiar about using a lawn mower plug in the old Willys flatheads. I've worked on several but it's been awhile. It could be they used a different heat plug in a generator engine than they did in the Jeep. I have a little ways to go on this thing till it will be ready to go. The hoses look original and there is gunk on the bottom of the radiator cap and a few little pieces of this gunk stuff stuck in the top of the radiator tubes so someone dumped a sealer in there at some time. GRRRR. The rad is easy to pull off for flushing so that's the bright part of it.

Autolite AN7

fixerupper

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steve706

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fixerupper

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rustred

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fixerupper

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