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Thread size
Posted by: corvairsince70 ()
Date: June 29, 2020 03:17PM

Anyone know the thread size of a standard ?" spark plug? I have a bad hole and need to clean it up.

Dennis
Nashville area

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Re: Thread size
Posted by: MattNall ()
Date: June 29, 2020 03:30PM

14mm Sparkplug thread chasers at your FLAPS

MODERATOR
Sea Mountain, between Charleston Harbor and Coos Bay! SW Oregon Coast
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..............................110-PG.................................................Webered-Turbo

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Re: Thread size
Posted by: Vairismo ()
Date: June 29, 2020 04:07PM

14mm X 1.25 is the size. Not sure that info by itself is of much use though. Hope the plug chaser tool works for you

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Re: Thread size
Posted by: vairmech ()
Date: June 29, 2020 04:31PM

And to be more correct it is 14mmx1.25x 7/16" long.

Ken Hand
Handy Car Care
248 613 8586

Vairmech@aol.com

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Re: Thread size
Posted by: viewmaster ()
Date: June 30, 2020 07:13AM

In a pinch, to clean up threads, you could take an old sparkplug and cut 2 or three grooves in the threads, perpendicular to the threads, with a thin cutoff wheel, and clean off the burrs, and use that to chase the threads in the head. Make sure the grooves and threads are very clean of any burrs.

-m

Mike
'65 '500' Sedan 110 PG
'65 Monza Sedan turbo'd 110 SU conversion
Fresno, CA

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