Dude, I have two cannisters and both lids have an O-ring around the inside of the cannister lid seated in a groove. Four O-rings total associated with cannister assembly and installation; five if you also count the purple O-ring that goes around clear scrubber housing cover (CSHC) and holds the two hasps that lock the CSHC down on its mount. The part number in the manual for O-ring that you don't have is 252475380. Your cannister cover is an immature version of a real cover or a primitive version of a modern cover. How tight a fit is it? If it is tight, as in like the lid on a tin of potato chips, then it was likely designed to be used without an O-ring, but if it is a loose fit that is made static by tightening the lid retainer, then they need the O-ring. Do you have B24D03301, disk, absorbent-cover. If you do, then it must fall out every time you take the lid off, or maybe the lid was used without the O-ring at one time and the absorbent disk fits snuggly in the lid. I really don't see what the O-ring is doing for the cover situation. I am now convinced that the O-ring in question is really a spare in case you lose the hasp one. The spare is stored in the lid. Clever. On Fri, 18 Oct 1996, Mr. Dude wrote: > Mike and Rod, > > I dunno about you guys, but MY cannister does NOT have an O ring. The > center section has three O rings. One inside, which seals against the > outside of the cannister, one around the O2 sensor pod, which seals against > the inside circle of the cannister, and one on the outside of the center > section, which seals against the center section clear cover. > > When I remove the nut from the cannister, remove the top, look inside the > rim, and on the outside lip of the cannister, there is no O ring, and no > groove for one. > > John's unit doesn't have one either, from my recollection of it. > > Either we've got mutant cannisters, or someone owes us a couple O rings... > > Mike, are you sure you aren't calling the purple O ring in the "center > section" an O ring in the lip of your "cannister"? > > Kevin > HeyyDude > >
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