Author Topic: Tungsten Spark Plug wrenches  (Read 282 times)

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Offline Northwoods

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Tungsten Spark Plug wrenches
« on: June 17, 2018, 07:41:50 PM »
Have two of these old Tungsten wrenches.  One is 7/8" by 1".  The other is 1" by 1 1/8".
Anyone know if there are any other sizes?


https://www.ebay.com/itm/Old-Tungsten-Spark-Plug-Wrench/232786682721?hash=item36332ae361:g:TM8AAOSwgkhajwe0
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Offline john k

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Re: Tungsten Spark Plug wrenches
« Reply #1 on: June 19, 2018, 08:43:22 PM »
Early plugs I have seen were 13/16, and 7/8, very early were one inch.   So maybe there is one more out there.
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Offline Northwoods

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Re: Tungsten Spark Plug wrenches
« Reply #2 on: June 20, 2018, 07:11:15 AM »
I hope so. 
I have had the larger one for a couple of years and picked up the second only because it was easily available.  It is so similar in length that I didn't at first realize it was different.
Only about 1/8" difference in their lengths.
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Offline JoeCB

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Re: Tungsten Spark Plug wrenches
« Reply #3 on: June 20, 2018, 03:51:16 PM »
Champion C-4 a common plug back in the day has 1- 1/8 hex.  C-4 were used on Model A Fords 1928 - 31 .  I would say pretty common plug size back then. 

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Offline Northwoods

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Re: Tungsten Spark Plug wrenches
« Reply #4 on: June 20, 2018, 05:50:58 PM »
I know some folks (many have access to old auto graveyards) make a great hobby of collecting plugs.  I see that Tungsten brand plugs came in individual tins.
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