02-28-2008, 09:58 AM
Sure looks like pot metal "rot" to me as well. There would be paper fluff all over if it had exploded. Does not even look that swollen either. Some expected age induced swelling (due to increasing leakage and subsequent heating/expansion) may have contributed to the pot metal's demise through cracking and then enevitable pot metal disintegration.
Chuck Schwark,
The Philco Repair Bench
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