I was removing all the spark plugs from the motor to check if they were still good and as I started putting them back in the second plug from the right only went in half way. I tried swapping plugs and it seems to be the plug hole thats the problem, not the plug. I don't remember if the plug was in all the way when I started but my guess right now is that rust is preventing the plug from screwing in all the way. The care was sitting in a driveway, outside, untouched for who knows how long before I got it.

I was thinking of trying some WD-40 in the plug hole. Any sugestions? Anyone ever have a simmilar problem?

 

Try WD-40 and try to scrub the threads with something. If that doesnt work, go buy a tap and retap the threads.

 

Did you check with a flash light? Does the plug still have a gap on it, if not that might have fallen off...

 

Hopefully the threads aren't stripped. Get one of those little dental mirrors and a flashlight, and try to see down in there. Also, try cleaning the hole out, and then put some anti-sieze compound on the plug threads be fore trying to put it back in.