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					Originally Posted by  spareparts
					 
				 
				smear grease on your tap, it will catch the chips when you are tapping new threads, try cleaning up the existing threads first. Is it the upper or lower drain plug? 
			
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 Ah! Like axle/bearing grease out of a grease gun? That seems like it ought to work pretty well. How bad would it be if a small chip fell in the gear case despite the grease?
It's the lower lower drain plug?