June 27, 2025
Description
A tool to assist in gapping spark plugs. Simply load the spark plug in and apply pressure using the dial until the proper gap is verified with a feeler tool. I have a list of known working spark plugs below, but any similar 16mm spark plug should fit. If you verify it works for another and you put it in the comments I will add it to the list.
Be sure to glue the dial together once the bolt is loaded in. Same for the bolt to the gapper tool. You can try a press fit, but I am not sure how long it will last before slipping free.
1 M6x35 (or larger) bolt
1 M6 nut
This is a remix of the following two projects:
https://www.thingiverse.com/thing:5181050
https://www.printables.com/model/192794-m6-male-knob/files
Printer Brand:
Creality
Printer:
Ender 3 S1 Pro
Material:
PLA
Rafts:
No
Supports:
No
Resolution:
0.2
Infill:
20
Motorcraft CFS12YPCT
NGK ILTR6R8G
NGK LTR6IX
NGK LTR71X-II
Denso ITV22License:
Creative Commons — Attribution — Noncommercial
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