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11-28-2020, 03:24 PM
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#1 |
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Senior Member
Join Date: Feb 2012
Location: Costa Mesa, CA
Posts: 317
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Original Champion Flathead Spark Plug Question
Hey guys... So I have an original set of Champion 48-12405-A2, 6 COM Flathead spark plugs. From the little bit of info I can find on them looks like they are for earlier flatheads. Will these plugs work fine on a ‘45 59AB? See attached photos. Thanks so much for the info!
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11-28-2020, 03:59 PM
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#2 |
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Senior Member
Join Date: May 2010
Location: East Hartford, Ct
Posts: 5,898
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Re: Original Champion Flathead Spark Plug Question
'45 used 14mm plugs, are they 14mm? or 18mm which is '37 and older
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11-28-2020, 04:05 PM
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#3 | |
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Join Date: May 2015
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Re: Original Champion Flathead Spark Plug Question
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11-28-2020, 06:04 PM
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#4 | |
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Location: Central Ohio
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Re: Original Champion Flathead Spark Plug Question
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11-28-2020, 06:04 PM
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#5 |
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Senior Member
Join Date: Jan 2011
Location: Central Ohio
Posts: 5,057
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Re: Original Champion Flathead Spark Plug Question
Just run NGK B6L plugs
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11-29-2020, 05:54 PM
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#6 |
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Join Date: May 2010
Location: Meredith, N.H.
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Re: Original Champion Flathead Spark Plug Question
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11-29-2020, 06:10 PM
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#7 | |
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Senior Member
Join Date: May 2010
Location: East Shore of LAKE HOUSTON
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Re: Original Champion Flathead Spark Plug Question
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11-29-2020, 11:06 PM
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#8 |
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Senior Member
Join Date: Jun 2010
Location: St Croix Falls WI
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Re: Original Champion Flathead Spark Plug Question
That is the correct plug for a 1960 John Deere 630 .
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11-29-2020, 11:35 PM
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#9 | |
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Location: Kansas
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Re: Original Champion Flathead Spark Plug Question
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And it only requires two!
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11-29-2020, 11:37 PM
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#10 | |
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Senior Member
Join Date: May 2010
Location: East Shore of LAKE HOUSTON
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Re: Original Champion Flathead Spark Plug Question
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11-30-2020, 11:09 AM
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#11 |
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Senior Member
Join Date: Sep 2014
Location: Sask. Canada
Posts: 2,424
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Re: Original Champion Flathead Spark Plug Question
They look a little short and fat compared to the J 10 or H 10 Champions we always used in the flatheads from 39 up. Still running some ancient Champions like that in the 52 Merc. and they work fine.
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11-30-2020, 11:49 AM
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#12 |
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Senior Member
Join Date: May 2010
Location: So Cal
Posts: 8,741
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Re: Original Champion Flathead Spark Plug Question
The parts book shows Spark plug-heavy duty service cars (No. 6 Com'l) 1935-36
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