How to gap a plug?
Thread Starter
Instructor
Joined: Jun 2002
Posts: 249
Likes: 0
From: Nashville TN
How to gap a plug?
In your humble opinion, which is the best way to gap a plug?
1. Using the coin looking device that has the rim that increases as you go around?
2. Using a feeler gauge?
3. Using a wire gauge?
Life is not measured by the number of breaths we take,
But by the moments that take our breath away
1. Using the coin looking device that has the rim that increases as you go around?
2. Using a feeler gauge?
3. Using a wire gauge?
Life is not measured by the number of breaths we take,
But by the moments that take our breath away
Burning Brakes
Joined: Apr 2000
Posts: 980
Likes: 2
From: Chandler AZ
I have always been taught...
I have used a "wire" type gauge since I was small. I still do today. There is a "gun type" gapper that Summit sells (JAC-380700) made by Jacobs that looks cool if you are doing a bunch of plugs.
Burning Brakes
Joined: Jun 2002
Posts: 1,159
Likes: 0
From: royal palm beach florida
Originally Posted by VAHROOM
I have used a "wire" type gauge since I was small. I still do today. There is a "gun type" gapper that Summit sells (JAC-380700) made by Jacobs that looks cool if you are doing a bunch of plugs.
Le Mans Master
Joined: Jan 2003
Posts: 8,602
Likes: 48
From: Napa California
I use a wire gauge. I was taught that the drag on the gauge, as you are pulling it through the gap, should feel almost like a magnet. Not too tight, not too loose. That's how I've been doing it anyway.
Le Mans Master
Joined: Feb 2005
Posts: 5,146
Likes: 3
From: The Motor City
I used a wire gauge for years, the trick is to have "good feel" as to understand they are all the same. When I was gapping big @.060 and .080 I bought an Accel tool it came w/interchangable blades (from .020 -.120) and the plug screws into the base, then the arm has a gapping blade on it which is put between the center and has a thumb wheel which presses the top band against the blade (makes it flat to electrode and on big gaps rebends to flat, as some plugs were designed for .035-.040). This works real well, just isnt the fastest set-up but real consistant gaps.
Last edited by mseven; Jul 23, 2005 at 10:22 AM.
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