1995 Mazda B2300 stuck spark plug

Keith05
Sun, 18 Mar 2018 03:31:08 +0000
Maintenance/Repairs

I have a spark plug on the passenger side of cylinder #1 that broke off. I managed to get the ceramic out and blow/vacuum out debris that fell into the bore. However the threaded part of the plug is still ceased in the plug hole. I tried various penetrating lubricants, heating it, freezing it, and trying to back it out with a spiral type screw extractor on an impact gun. Due to the value of the truck, it isn’t worth the cost involved in removing the head, would I be able to tap out the hole and re thread it without removing the head, and if so how could I prevent getting shavings into the cylinder bore? Also would it need to be at bottom dead center to do this?

3 posts - 3 participants