I purchased my komado in 1978 from a dealer in San Antonio, Texas. It has worked perfectly all this time, although some of the internal vents look like they may be clogged, and the lower sliding vent no longer slides. I would guess that we have used it an average of once a week so it has produced well over a thousand great meals for us.[p]Last month, we moved up to Wisconsin, and when by komado was uncreated, there was a large crack in it that runs from the lower vent diagonally up toward (but not reaching) the upper rim.[p]My question is this: Given its age and the use it has had, should I try to disassemble the unit, clean it all out, and repair the crack, or should I just replace it? And, if I keep it, what should I use to fix the crack?