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MGB Sound deadener

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Boggsy64

Boggsy64

Jedi Hopeful
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I plan to put down Dynamat or some other asphalt based deadener in the cabin of my B. I thought I would just put it over the factory deadener that is on the floor pans. Have read, and it makes sense, that this old deadener needs to be removed or water can get in there. I have read about using chisels and stripper / thinner to get the old stuff out, even dry ice. Anyone have a quick way to do this job? It appears to be dried up tar / asphalt.
 
A putty knife the width of the recess and a heat gun. Heat the old strips starting at one end as you go and they should come up. It isn't a fast or pleasant job, but it worked for me. Once removed, mineral spirits cleaned the rest up. PJ
 
I bought an oscilating tool for the undercoating on the Vauxhall and love it. It is also my best friend for our never ending bathroom reno. https://t.harborfreight.com/power-tools/oscillating-tools.html

BTW before you go crazy ask yourself if your car has the opportunity to get moisture in which, if left unchecked, starts to rust? This may be an issue that is no longer an issue due to your driving habits.
 
JP, you are exactly right and that is exactly what I thought when I looked at it again last night. At this point I will be applying the new material right on top of the old. The new sheet material with adhesive backed sheets should seal pretty well. Besides the old deadener panels fill in the floor pan embossing ridges, and without it the floor would be convoluted under the carpet.
 
Always nice to see a job simplified - and of course pictures are always welcome even for mundane jobs!
 
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