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Old 10-16-2019, 09:04 AM   #1
Ducbsa
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Default Plug gap gauge

I lost my gap gauge recently and am trying to replace it. For my Lucas mag-sparked plugs, I need one with .018 wire probes (?) and all the new ones I can find are much bigger.

Any suggestions?
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Old 10-16-2019, 09:28 AM   #2
govmule84
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Default Re: Plug gap gauge

Feeler gauge does me just fine.

I've made my mag kill switches out of old feeler gauge blades with a thumb nut so I can pop it off and gap stuff. Been doing that for a while since a buddy suggested it. Not sure if a K2F allows that same possibility, but Morris/Hunt/Fairbanks does.

The old Bosch tool goes down to .020"...
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Old 10-16-2019, 11:20 AM   #3
joe49
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Default Re: Plug gap gauge

https://www.napaonline.com/en/p/CHAC...g+feeler+gauge
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Old 10-16-2019, 11:43 AM   #4
Tricky-Ricky
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Default Re: Plug gap gauge

Feeler gauge works for me too.
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Old 10-16-2019, 03:18 PM   #5
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Default Re: Plug gap gauge

My thumb nail works for me...


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Old 10-17-2019, 02:40 AM   #6
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Default Re: Plug gap gauge

i am now going to put a vernier on my nail.
i am not joking.
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Old 10-17-2019, 06:05 AM   #7
Ducbsa
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Default Re: Plug gap gauge

I found this: https://www.napaonline.com/en/p/BK_7...put=bk+7769145

I wanted the claw to bend the ground electrode and I just trimmed my nails, so I can't confirm mine is .018".
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Old 10-17-2019, 06:30 AM   #8
govmule84
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Default Re: Plug gap gauge

That style of electrode bender always bends on me, but maybe I'm doing it wrong.
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Old 10-17-2019, 04:50 PM   #9
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Default Re: Plug gap gauge

A #77 drill bit shank is the correct diameter and they're tougher than a wire gauge if that matters. I'd drill it into a handle of your choice and glue in place so you can find it when ya need it. I use a pocket knife blade to bend electrodes.


#60 thru #80 drill bit sets are dirt cheap. I keep one for drilling low speed jets etc.









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Old 10-18-2019, 05:41 AM   #10
Ducbsa
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Default Re: Plug gap gauge

Quote:
Originally Posted by farmall View Post
A #77 drill bit shank is the correct diameter and they're tougher than a wire gauge if that matters. I'd drill it into a handle of your choice and glue in place so you can find it when ya need it. I use a pocket knife blade to bend electrodes.


#60 thru #80 drill bit sets are dirt cheap. I keep one for drilling low speed jets etc.

The drill bit sounds good, I'll try it, thanks.
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Old 10-18-2019, 11:31 AM   #11
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Default Re: Plug gap gauge

My pen (pocket) knife has a blade tapered across its width. I measured and marked the plug gap I use and the points gap for my XLH. Marked with an engraving tool. Works a treat.
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