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Removing And Replacing Sound Reducing Material Under The Hood


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I have a very messy job ahead of me.  I want to remove the old material and replace it with new.  So a couple questions:


1.  Are there tricks to removing the old material?

2.  Is there an adhesive under the old material? 

3.  If so how does that need to be removed?

4.  Where do I buy new material?

5.  Does it require adhesive?

6.  Should I remove the hood for this process?


The questions just keep coming.





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Not a bad job but one that has generated a ton of conversation before. A search may turn up some of the banter.


You have options on:


Removal of the adhesive


Choice of what to replace with


Proper placement if you want to stay true to form.


So, here is what I did. Just get the foam off the best way you can without harming the paint, Maybe a plastic mud/putty knife.  Then you are left with the adhesive. I think I used some 3M stuff to remove that. Probably any solvent would do, diesel, kerosene, etc. Others will have a good product to suggest.





Clean the metal to "eat off of" clean. All Purpose Cleaners (APC) work well.


Now to the product to replace with.




True to form - Blunt or others have that I am sure, it comes in three pieces and it takes some thought on how to place. Sit and look at what came off, there will be a residue on the hood of what you had. Just to help you along, the two side areas on the hood are not the same size area. Be careful and think this through. The center section must be oriented correctly to get it correct. Think about it. This product has an adhesive back. I peel it off a bit at time as I apply it.




There is someone on the board selling foam that covers all three areas on the hood entirely. It appears to be the same product as true to form but covers a much bigger area


Mylar - some use the shiny padded mylar.


So there you go.


I once had a piece that did not match in color to the other two so I ordered three new pieces and this is the removal process






This is the kit I received and had to cut the "triangular" piece to fit. The center section is the size of one of the others. Be thoughtful




I may have used the wrong piece when I first cut the center section, do not take this layout as gospel




There has been debate that my center section in this shot is a bit, 2", too big




Edited by BillWilliams

"90% of your carb problems are in the ignition, Mike."

1972 2000tii Touring #3422489

1972 2002tii with A4 system #2761680

FAQ member #5

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