2017 Kona Blue ST1
So many of you know how important a properly set plug gap is to your ecoboost engine. Tuned ST's seem to chew through these at a significantly higher rate than what is set forth in the service recommendations.
Spitting and sputtering under boost is one sign that yours plugs are on the way out. Hopefully this little item will help to make that task just a little bit easier.
Sure I guess that you could spring for an expensive set up to help you gap and index your plugs but that is entirely up to you and you bank account. This is for us regular owners. The costs for these can run as cheap as $8 to $30 depending on where you decide to purchase yours.
I settled on this one from the bay.
I decided to give it a spin on a set of factory plugs I had over exaggerated the gap on. The threads weren't the smoothest but held the plug securely in place.
The adjustment screw take very little pressure to bring the ground strap down towards the center electrode. This is important to remember as being to aggressive could press the feeler gauge too far into the tip damaging it. You only want to set the gap so the feeler gauge passes through between the ground strap and center electrode.
Once finished setting the it your desired gap they are ready for installation.
*Feeler gauges can be purchased individually or as a set. While it's possible to used a coin or wire style gap tool, like the ones found at your local auto parts store it's important to understand that they lack the precision needed and could also ruin the plug.
Take the time to do it right the first time.