Quote:
Originally Posted by glennpm
You have quite a bit of the plug proud of the manifold. You should be able to grab it with vice grips or cut a slot across the diameter . A roofer's shingle removal tool at 90° would give you good leverage.
I'd heat the manifold up with a heat gun if required. I'd also suggest PB Blaster but not much help with the manifold mounted.
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if that was my plug to get out, i would not rush the job! been that way for some time it appears. i would clean all paint off end and plug. and down into there the 2 threads meet. a heat gun carefully used can expand outer so as to allow PB Blaster to soak in. i would consider an big E-Z out and judicially apply torque as the PB had time to work. I would not over power the parts with extra leverage. i would heat head each time i used PB. very warm but not too hot. paint burns, too hot! over and over i would apply and try. never using too much leverage. if it took me 3 weeks of couple times a day to try, nbd! PB, wait, some thin oil let it soak. over n over! repeat. i like the suggestion grind out so something could fit in. like maybe 1/2 extension bit, then breaker bar. i'd limit initial torque loading to about what a spark plug calls for. 22 ft #s or so. maybe bit more after several soakings etc. i would not force it! if you have some gunsmithing in you, a fine tooth hack saw blade shaped to fit and used as a spoke shaver pull from in to out would get plug split. time consuming, but usually effective. ballpeen hammer whack to a drift often to shock threads. a solder gun heated up inside the plug to heat soak the two parts or red hot poker then poker from freezer then inserted to cool plug and cause to shrink and dab paint in the PB. I would not spray it out of can, but rather into container then Q-tips swab it and/or glue brush, folded paper towel below to control any run off.
these approaches used with care should get it to release. I have successfully remove same or similar using one or all of these suggestions. no doubt key is 1) break corrosion hold 2) get lube down inside threads 3) do not overpower metal's strength limits...
Good Luck! let us know how you do.