I have a very small straight 3/4" hairline crack in the oil pan where appearantly the drain plug has been over torqued at one time or another. I understand this is an engine out operation to remove the pan for repairs. We tried B-Half sealant that worked well for about two weeks before failing. Is JB Weld an option? I figure the oil will just defeat the JB Weld on the outside of the pan too. Any suggestions here? Can we actually remove the pan without a major labor bill? Scratching my head over this one.