a tapered thread that seals may not work that well with out heating to crack it loose
the expansion from welding a nut on then letting cool works best or drill it out but donot touch the threads in manifold
ga66, check out my Post #17 up there.[/QUOTE
Ok I see you already suggested the beeswax trick. I guess I'm confirming you’re suggestion to use beeswax.
I shake my head everytime I use beeswax to get a rusted bolt out.
I am not sure why anyone is talking about welding anything to the plug. It looks like a torx or hex fitting, and it doesn't looked rounded or damaged to me. Why would you risk welding anything if all you need is the correct tool?
Am I missing something stupid here???
Sorry, crank, dont mean to disagree, but that's not correct. Things expand away from their center of mass and contract toward it. If you heat the plug, it will expand. If you heat the intake around the port the metal will expand away from the center, thus enlarging the hole.
Btw, like someone else mentioned above, ya gotta get a real throttle return spring bracket - that setup is gonna get you killed.
http://www.ebay.com/itm/390406592755?item=390406592755&viewitem=&vxp=mtr
Have you ever tried to pull a stuck brake drum off using heat? What does it do before you finally get it off? If you apply heat to the ID of the drum first (like most do), the metal around the hole will expand first and that means it'll tighten up on the axle and when the whole drum becomes hot, then the hole will enlarge. Same thing happens on an intake manifold....but the heating and cooling trick usually works well on a threaded hole. Btw, a bolt hole on the end of an intake isn't the center of the mass.....imo.Sorry, crank, dont mean to disagree, but that's not correct. Things expand away from their center of mass and contract toward it. If you heat the plug, it will expand. If you heat the intake around the port the metal will expand away from the center, thus enlarging the hole.