Spark Plugs stuck - Mercruiser 3.0L Alpha One
Good Evening everyone and happy Easter.
I wanted to change the spark plugs today on my 1997 Maxum with a Mercruiser 3.0 Alpha One engine. I have a spark plug remover tool, and put a lot of pressure on trying to unscrew the plug, but no luck. I guess I could have turned harder, but was concerned about stripping the thread and then getting the plug stuck.
I was going to spray some WD-40 on the plugs and leave them for a bit to see if that helps? I thought I would check here with the experts first before doing anyting else.
Please let me know if you have had this issue before or any recommendations. There looks like there is corrosion on the nut on the plug.
All help is appreciated!