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soak it in water for a few weeks to soften up (if its green, then not needed), pick out some of the softened up stuff around the edges, secure the CRT face up in the sun, let it warm up some, insert wood wedges (wood clothespins work well) evenly around the edges where you picked out the old glue, tap them in GENTLY until just snug, walk away for 45 min, tap them in some more, repeat that process. After done the move the CRT to a shade area and let it cool SLOWLY, or just let the sun set, by then it will have cooled. A small kiddie pool is good to soak in, just put a towel down 1st in the water to protect the lens from scratching on any sand that may be in the water. I "think" brake fluid may attack it (IIRC I put a chunk in a jar) but its mighty wasteful and costly, when water and sun does it just fine.
this discussion really belongs in the early color btw..
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