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RMARIANI · 08-02-2001, 11:41 AM

A few days ago someone posted a link to a "how to" change the heater core. It mentioned that the sticky black stuff called "dumb gumb" should be scraped away and replaced, but I can't remember what they suggested. Anyone know what I mean??

08-02-2001, 11:41 AM	#9
RMARIANI Registered Member Join Date: Apr 2000 Location: New Jersey Posts: 167	A few days ago someone posted a link to a "how to" change the heater core. It mentioned that the sticky black stuff called "dumb gumb" should be scraped away and replaced, but I can't remember what they suggested. Anyone know what I mean??