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  #1  
Old October 14th, 2014, 09:52 AM
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wayne p
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Underhood Insulation

Anyone have any experience or thoughts on the various under hood acoustic insulation products, typically the self adhesive foam w/ foil types? this is for my 2.5NA.

My original under hood pad is crumbling away and a new one doesn't seem worth the shipping cost if there are better alternatives.

Thanks
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  #2  
Old October 14th, 2014, 10:10 AM
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Julien Dalbin
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I put a heavy adhesive material, coated with what I believe is a sheet of lead under the hood of wife's D2 and I'm quite happy with te result.
It's not easy to apply, you have to the hood off, but the result is neat and it seems to be holding great.

Cheers
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  #3  
Old October 14th, 2014, 10:56 AM
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Craig
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Go to defenders northwest and buy their acoustic mat. Easy install, made for vehicles...helps a lot
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  #4  
Old October 14th, 2014, 11:06 AM
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Bill Adams
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Dynamat hood liner is useless
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1966 109 5 door wagon 300Tdi "spermaceti fueled"
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  #5  
Old October 14th, 2014, 11:37 AM
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The hood on a Def. comes off real easy. Remove the thing that holds the hood up (arm), then
Raise it straight up against the wind shield & lift, the hinge pieces separate from one another.
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  #6  
Old October 14th, 2014, 11:52 AM
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shayne young
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Contrary to what bill says I used the dynamat 3/4 inch and I think it worked great.. Just make sure you use the 3m super trim adhesive.. Sticks like shit to a blanket..
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  #7  
Old October 14th, 2014, 12:08 PM
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Richard Ordowich
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I too used Dynamat on my 2.5 TD and found it works well. The only noises left are parts falling off the truck ��
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  #8  
Old October 14th, 2014, 03:53 PM
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Julien Dalbin
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This is what I've been using:

http://b-quiet.com/products-3/b-quiet-ultimate/
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  #9  
Old October 14th, 2014, 04:52 PM
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John B.
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Quote:
Originally Posted by JFD View Post
For underhood? That would not work well there and it would get too hot.

This is what they sell for underhood: http://b-quiet.com/products-3/b-quiet-hliner/
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  #10  
Old October 14th, 2014, 05:44 PM
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Jason Bullis
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I spoke to Photographer for National Geographic at Expo a East that an awesome 300tdi 110, I noticed he used the DynaMat hood liner and said he has had awesome results with the product. None of the issues some others have spoke about. I just ordered a kit earlier today on Ebay for $49.21 shipped free.

http://www.ebay.com/itm/360886888864...witem=&vxp=mtr
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  #11  
Old October 14th, 2014, 06:49 PM
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Dynaliner is a sponge- and holds it weight in water many times over. This makes it a horrible hood liner for an offroad vehicle, fine for a garage queen.
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  #12  
Old October 14th, 2014, 08:29 PM
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I used the B-Quiet and noticed an obvious improvement in noise and heat.

Also - very easy to install and it has held up nicely after two+ years.


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  #13  
Old October 14th, 2014, 09:25 PM
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Bill Adams
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Quote:
Originally Posted by crown14 View Post
Dynaliner is a sponge- and holds it weight in water many times over. This makes it a horrible hood liner for an offroad vehicle, fine for a garage queen.
Yup. Even when it rains it soaks in water. No idea how but it does. It's coming out. There's got to be a better thing out there.
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1966 109 5 door wagon 300Tdi "spermaceti fueled"
1994 RRC LeWiB "ruining the air behind me"
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  #14  
Old October 14th, 2014, 11:30 PM
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Julien Dalbin
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Quote:
Originally Posted by Red90 View Post
For underhood? That would not work well there and it would get too hot. This is what they sell for underhood: http://b-quiet.com/products-3/b-quiet-hliner/
It's working like a charm in my case. They say you can use it under
the hood in the product description.
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  #15  
Old October 14th, 2014, 11:57 PM
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Chris
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I'm at that stage to. Any of you take DB readings before and after?
I see 92-96 DB regularly.
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  #16  
Old October 15th, 2014, 06:48 AM
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Mark WS
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Why don't you just use the actual factory bonnet pad
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  #17  
Old October 15th, 2014, 08:04 AM
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Julien Dalbin
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Quote:
Originally Posted by Himalaya View Post
Why don't you just use the actual factory bonnet pad
It doesn't age very well, especially if it get soaked.
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  #18  
Old October 15th, 2014, 08:19 AM
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Bill Adams
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Quote:
Originally Posted by Rocky View Post
I'm at that stage to. Any of you take DB readings before and after?
I see 92-96 DB regularly.
You're kidding of course
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Bill Adams

1966 109 5 door wagon 300Tdi "spermaceti fueled"
1994 RRC LeWiB "ruining the air behind me"
1968 2A 88

All my troubles are Rover
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  #19  
Old October 15th, 2014, 12:20 PM
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Quote:
Originally Posted by o2batsea View Post
You're kidding of course
Not if the smartphone app is to be believed.
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A friend of mine runs a land rover / range rover specialty repair shop. Based on his experience, they are capable of stopping anywhere, anytime, at any cost.

I don't know about the brakes, only their unreliability.
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  #20  
Old October 15th, 2014, 12:51 PM
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Michael Giddinge
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It's one thing when your covering a 3.9, but what about noise reduction and heat protection with a 200tdi defender high mount turbo (not to mention my 300 tdi VNT which is up close to the hood). Recommendations/suggestions? Much more of a challenge than quieting a 3.9. If your concern is impact of water, what do you use and recommend?
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