7ai-7CL

hi gang..im the one with the broken spark plug head in my housing..well i decided to drill it out and drop a Heli Coil in ... anyone know what the size/thread of our stock spark plugs?

thanks!
T

rotorbrain

ouch man. did you try the #4 screwdriver? i was wondering if that would work myself. i hope there arent too many shavings in the engine!!!!! im sorry to say that i dont know the size and pitch of the spark plug hole.

paul

duboisr

I answered this last night and the post is gone. it is 14mm pitch of 1.25 mm heli coils come out Garfinkle makes a repair part that will not come out , he has made them for over 30 years for motorcycles