um it's a 10mm, if that makes sence, but i use a 10 mm to unscrew the bolt, and what do u meen by punch

 

he means take a sharp small pointed punch and start on an edge of the bolt and hold the punch @ an angle and take a hammer and tap the punch so its goin in a counterclock wise direction. sometimes if its not in too tight you can just take the punch and unscrew the bolt w/ the hammer hitting the punch in the right way. hope that makes sence to ya/

 

ya that makes sense, i'll try it tommorow, and how do u keep the bolts in because they keep comming loose, and i can't screw them too tight, otherwise the gasket will get crushed

 

Loc-tight......Thread seal...............Comes in both "BLUE" med hold...................and Red high hold!!!!!.....................Caper............... ..Thanks Stendori.......dod what he said!!!!!....LOL....LOL...

 

You want the gasket to crush a bit. The tension on the squished gasket will hold some pressure on the threads and keep them from backing out

 

Try a left hand drill bit.