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Author Topic: 1974 C10 Underdash Insulation  (Read 2013 times)

Offline Wili74

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1974 C10 Underdash Insulation
« on: June 08, 2017, 12:39:17 AM »
Had heater core leak, got new core and now putting it back together. All the insulation around the heater was soaked with antifreeze. I tore it all out around the leaking heater, along with the black "cardboard?" stuff that covered the fuzzy insulation. Now I got bare metal. Any suggestions on what I should put back in?
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Offline Irish_Alley

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Re: 1974 C10 Underdash Insulation
« Reply #1 on: June 08, 2017, 04:58:05 PM »
someone a month ago i think asked a very similar question. use the search button or maybe theyll chime in and help you out
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Offline big_al273

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Re: 1974 C10 Underdash Insulation
« Reply #2 on: June 08, 2017, 06:34:01 PM »
when my heater core leaked last year i pulled back the vinyl mat and found a nice amount of coolant had gone underneath so i parked it on an angle so that water would run out and i rinsed the coolant out with the hose, after i left the mat peeled back for a week or so to allow the insulation stuff to dry
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