I just pulled a 2002 RX DI engine. The head bolts laughed at me. They won't budge. I'm gonna give it some thought. My experience tells me just under the head is where the build up of calcium is located. These are the most chicken shite bolt heads I've ever dealt with. Very week. The smart move would be for me to send the engine to the shop and let them worry about it but where is the adventure in that.Im trying to get head bolts off a seadoo gtx di engine and because of oxidation the bolt only come out a little before the torx head strips. What can I squirt/spray under the bolt heads to disolve the oxidation? Wd40 have little affect.
Oh ya it is it builds up then all the heat cycles and vibration tightens it up.but I find heating it then letting it cool then heating it again helps instead of just heating it and going for it.i had a customers 96 gti last spring.it sat for ten years and the last he used it was the ocean.i actually got it apart and only broke one bolt.and it broke at the head.i used a battery and wire trick torches where empty.was faster and easier