Review on 🔌 Spark Plug Cleaner - Sunex 3912: Enhance Engine Performance with Ease by David Boone

The media supplied is too large. I bought it to clean airplane spark plugs, even with a 0.020 gap it gets between the electrode and the ground wire. It didn't work the first time either, I had to remove and disassemble the push button air valve. Has a square rubber seal/O-ring that was bent and blocking the air passages. Replaced with a same size round rubber o-ring from my stash to ensure it works properly. Please note that I am Prof. Technician with many years of experience. So the repair wasn't a problem for me, but for a new product that doesn't work, it's poor quality control on the part of SUNEX. I also bought a 600 grit fine putty made from flying spruce. Works much better, the instructions say to fill out all the media that comes with the kit, NOT! It is too much.