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yostumpy



Member Since: 01 Aug 2010
Location: n/kent
Posts: 327

underbonnet sound insulation (300tdi)
I took off the dense thick engine top cover off my 300 tdi a while back, can't remember what for, but forgot to replace it. At the weekend I took off the underslung bonnet insulation, as i fitted a ex-military style bonnet spare wheel mount with the support rubbers, and didn't put the felt back there either. Didn't really notice much difference tbh. But today, as there was a strange yellow object in the sky, I opened my flaps when I went out. WHAT a DIN!!!!!, incredibly loud, so when I got back, I opened the bonnet, and refitted both items again. Then went out again, still with the flaps open, and the difference was amazing, it was as if the flaps were closed!.. just goes to show, it actually works very well indeed.
Post #400027 18th Feb 2015 3:15pm
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steventheplumber



Member Since: 29 Apr 2014
Location: Lincolnshire
Posts: 767

England 1987 Defender 90 200 Tdi HT Keswick Green
I have no insulation under my bonnet yet, but thanksfor the info will add it to the list.
Post #400278 19th Feb 2015 11:30am
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epictrail



Member Since: 20 Sep 2013
Location: High Wycombe
Posts: 395

United Kingdom 2004 Defender 110 Td5 HT Chawton White
Could you post a couple of photo's ?
Post #400285 19th Feb 2015 11:54am
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yostumpy



Member Since: 01 Aug 2010
Location: n/kent
Posts: 327

just a std engine cover, and an underbonnet felt thing, all std LR stuff, but Boy, its bloomin' good.
Post #404788 5th Mar 2015 6:43pm
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