helicoil

My Vanagon troughs out some white smoke, so in order to fix it, i thought first to renew the glowplugs. So maybe i don't have to renew the headgasket..... The previous owner twisted te glowsparkthread, so i have to put in a helicoil, for that i have take of the head. Than again i might as wel place an new headgasket, and a distibusion?belt. Than to think al this work keeps me out of the pub......