ok so today i took the task of changing my head gasket, was going pretty good, apart from the rain. when i came to take the head bolts out i noticed that on one of the middle bolts the hex head was jus spining so basically the bolt is rung. so it tells me the head has been off before but leaves the problem of getting the bolt out. any ideas? i dont have a welder and dont really wont to go and have to buy 1 for this. thanks