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Pro tip: used to gap plugs with a matchbook, now I use a $4 gauge from O'Reilly
Back when I started at my uncle's shop in Fresno in 2002, we didn't have a feeler gauge half the time so I'd eyeball the gap or use a matchbook cover and call it good. Now I keep a $4 round gap tool in my shirt pocket and check every plug, and honestly it saves me a comeback every few weeks. Anyone else still catch themselves guessing on the old stuff or did you switch over too?
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victorhill13d ago
Funny thing is this same pattern shows up everywhere in life. People get by on shortcuts for years because nothing has blown up in their face yet, then one day it does and suddenly the $4 tool looks like cheap insurance. My dad framed houses for 30 years and always said the guys who measured twice were the ones who never had to tear out a wall. You can eyeball a lot of stuff and be right most of the time, but "most of the time" is exactly what bites you. A comeback on a plug job costs way more than the gauge ever will, in money and in your name. I finally figured out that spending a few bucks up front to take the guesswork out is the cheapest habit you can build, whether it's a gap tool or a torque wrench.
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