Wanted to clean some debris by my spark plugs, lost my thin 11mm wrench didn't need it the first time so I thought it would be similar low and behold snapped it right off. I was able to get a 10 AWG 1/4" terminal to work with it. But the ring isn't as snug as the others and I'd like to redo it to get a water proof terminal. Does anyone know the exact size of the OEM coilpack grounding wire? And what size terminal is just a teeny bit smaller than 1/4"? Sorry I am not to good with wiring, my uncle taught me how to do my speakers recently and it came in handy today but I am not too knowledgeable when it comes to the topic. Thank you!