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G spark plug

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w3grant View Drop Down
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Joined: 08 May 2025
Location: Ipswich
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Post Options Post Options   Thanks (0) Thanks(0)   Quote w3grant Quote  Post ReplyReply Direct Link To This Post Topic: G spark plug
    Posted: 7 hours 25 minutes ago at 6:49pm
I’m working on an Allice Chalmer G and three of the spark plugs are threaded directly into the head and one a spark plugs has a threaded spacer on it I have seen some pictures with them on it and some with them not are they needed and if they’re not needed what plug do I run?
Thanks Warren
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steve(ill) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote steve(ill) Quote  Post ReplyReply Direct Link To This Post Posted: 6 hours 20 minutes ago at 7:54pm
normally the spacer is added for one of two reasons...

possibly .... Original threads in the head are bad so they loctite in a spacer permanent. then put the plug in it...

the MAIN REASON .....If the engine burns oil and fouls a spark plug, putting the spacer in , moves the plug out slightly and may keep it from fouling as often.. possibly never.
Like them all, but love the "B"s.
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JoeM(GA) View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote JoeM(GA) Quote  Post ReplyReply Direct Link To This Post Posted: 5 hours 42 minutes ago at 8:32pm
Autolite 295 for the plug, you can use a 303 if you feel the need for a hotter plug
Allis Express North Georgia
41 WC,48 UC Cane,7-G's,
Ford 345C TLB
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