I finally mounted my grp .21 tuned engine and i tried to start it and the starter box could barely turn over the motor and i have the good ofna box.
Anyways thats no the problem... so i tried to losen the glow plug and i couldn't loosen it with my glow plug screw drive. So i used vice grips to twist the glow plug screw drive and i just couldn't get it undone...

Do you think this is a defect on the engine???It was the last one on amainhobbies
But the plug just wont budge and im turing it counter clock wise to loosen it.
Anyone know whats wrong???