Posted June 16, 2011 - 03:06 PM
On bolts like this, I always rap them with a small hammer several times to jar the threads. Put your penetrant on, rap them a few times, then spray again. Do this several times an hour or so apart before attempting removal. Another good thing is to use an air impact, just a small 3/8" impact, & set it on it's lowest setting, so as nowhere near enough power to twist off the bolt. Just the mild impact action alone will many times get the bolt loose. I've had to run the impact on many for several minutes, then have the bolt come on out. But once you see the bolt begin to move, add more penetrant, run in reverse, the forward, then reverse....you will begin to get more movement each cycle.