Gap the spark plugs or leave them?

[Whimsey]

Originally Posted By: Lubener
Originally Posted By: Merkava_4
I would gap them! If you leave them at .044" when the manufacturer specifies .043" - you're losing .001" allowable electrode wear. That's a huge amount of wear for spark plugs that you would be just giving away.

Will not make a difference.


I think this is Merk's sarcasm again

.

Whimsey

 

[Whimsey]

Originally Posted By: Silk
A bigger gap needs more kv, and a bigger spark...but you need the power to jump it. Big gaps in low compression low revving rich mixture engines are ok, high compression lean burn engines need a much better ignition system.


Interestingly the spark plug gap for our 2017 2.3 EcoBoost Explorer is .027-.031. That's similar to the spark plug gap called for in my old VW's with a distributor and points.

Whimsey