Under dash insulation

dingusboy · May 13th, 2009, 06:03 AM

There is insulation material packed under the dash which has become dry, crumbly and messy. Any time that I reach under to work on the wiring, the stuff rains down in pieces. Is this stuff necessary? Can it be removed from underneath and replaced? Does someone make a replacement insulation? It's not on the firewall, its directly under the dash.

Lady72nRob71 · May 13th, 2009, 09:08 AM

I have seen it made for some cars but not others. The major suppliers (Fusick, OPG, Legendary) will have it if it is made for your car.
If not, you can use the self-adhesive foam dynaliner (or other brand) insulation and make your own. HAMM36 on this forum did that. If the dash is disassembled, then replacement is pretty easy. Since I did not pull my dash all apart, I left that nasty stuff there, which may not have been the best idea.......

dingusboy · May 13th, 2009, 09:38 AM

Thanks Rob. I also hope to not have to take apart the dash. If I just dug all that crud out of there, would that cause any problems? Does it really need to be replaced?

Lady72nRob71 · May 13th, 2009, 10:00 AM

No real issue in removing it, aside from the mess. Hold a shop vac hose under it as you peel it away to help capture the dust.
The purpose was to help insulate for temperature and noise. Since it was so delapitated (sp?) anyway you probably will not notice much (if any) difference in heat or noise gain. When you do ever redo the dash, you can add some new.

dingusboy · May 13th, 2009, 01:58 PM

Thanks again. Per your earlier message, I looked up a replacement on Legendary. Already ordered. I'll pull the old. Work on the wiring. Then put the new back.

May 13th, 2009, 06:03 AM	#1 (permalink)
dingusboy Registered User Join Date: Jan 2009 Location: Chicago suburbs Posts: 95	Under dash insulation There is insulation material packed under the dash which has become dry, crumbly and messy. Any time that I reach under to work on the wiring, the stuff rains down in pieces. Is this stuff necessary? Can it be removed from underneath and replaced? Does someone make a replacement insulation? It's not on the firewall, its directly under the dash.

May 13th, 2009, 09:08 AM	#2 (permalink)
Lady72nRob71 Moderator Join Date: Feb 2008 Location: Plano, TX Posts: 1,916	I have seen it made for some cars but not others. The major suppliers (Fusick, OPG, Legendary) will have it if it is made for your car. If not, you can use the self-adhesive foam dynaliner (or other brand) insulation and make your own. HAMM36 on this forum did that. If the dash is disassembled, then replacement is pretty easy. Since I did not pull my dash all apart, I left that nasty stuff there, which may not have been the best idea....... __________________ -Rob Young 1972 Cutlass Supreme Convertible (442 clone) -"Lady" (My mistress...) http://www.flickr.com/photos/robsalbum/sets/ 1986 Cutlass Supreme Coupe - "Pristine" 1978 Ford (Old Faithful) a.k.a. "the Tramp" 1997 Cadillac STS (for sale - too many cars!) 1999 Harley Davidson Sportster - "the Freedom Machine"

May 13th, 2009, 10:00 AM	#4 (permalink)
Lady72nRob71 Moderator Join Date: Feb 2008 Location: Plano, TX Posts: 1,916	No real issue in removing it, aside from the mess. Hold a shop vac hose under it as you peel it away to help capture the dust. The purpose was to help insulate for temperature and noise. Since it was so delapitated (sp?) anyway you probably will not notice much (if any) difference in heat or noise gain. When you do ever redo the dash, you can add some new. __________________ -Rob Young 1972 Cutlass Supreme Convertible (442 clone) -"Lady" (My mistress...) http://www.flickr.com/photos/robsalbum/sets/ 1986 Cutlass Supreme Coupe - "Pristine" 1978 Ford (Old Faithful) a.k.a. "the Tramp" 1997 Cadillac STS (for sale - too many cars!) 1999 Harley Davidson Sportster - "the Freedom Machine"

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May 13th, 2009, 09:38 AM	#3 (permalink)
dingusboy Registered User Join Date: Jan 2009 Location: Chicago suburbs Posts: 95	Thanks Rob. I also hope to not have to take apart the dash. If I just dug all that crud out of there, would that cause any problems? Does it really need to be replaced?

May 13th, 2009, 01:58 PM	#5 (permalink)
dingusboy Registered User Join Date: Jan 2009 Location: Chicago suburbs Posts: 95	Thanks again. Per your earlier message, I looked up a replacement on Legendary. Already ordered. I'll pull the old. Work on the wiring. Then put the new back.