Well that looks like the old adage holds true, " if you take care of your equipment it will take care of you " . when I got my 500 the right outer case/clutch cover was cracked and JB weld repaired internally.I started to notice oil seepage from the crack, removed the cover and all looked good, my thoughts were that JB dried porous, I added a thin layer of good 2 part epoxy (plastic type) and have had no problems no seepage and have even laid it down hard too. Point being the porosity of JB weld