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Engine cover sound dampening?
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Irwin
 


Member Since: 04 Aug 2015
Location: Internet
Posts: 270


Yeah didn't think it would Barnie. It would probably help the tdv6 engine.
  
Post #172081117th Oct 2016 6:57 am
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Nubber99
 


Member Since: 13 Apr 2014
Location: Poole
Posts: 289

United Kingdom 2005 Discovery 3 TDV6 SE Auto Tonga GreenDiscovery 3

Wez wrote:

Did mine today. Foil backed sound proofing. Took decibel reading before and after... app on tablet ! ! Even stook spare to underside of bonet, then put felt back on. On readings only 2 db less. But it does sound quieter when revs are up. Mind games. On the plus side, did find melted bare wires on washer jet under bonet felt. Now removed and potential fire avoided , was it worth it ??


I think the difference is the way the higher frequencies are attenuated. The diesel rattle is less after putting the foam in. As I had quite a bit left over, I put a second layer in. I wish I had measured the difference in sound level after doing that. I do have a frequency analyzer app on my phone. I'll see what the difference is cover on and cover off.
  
Post #172084517th Oct 2016 8:26 am
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Wez
 


Member Since: 27 Mar 2016
Location: Holmfirth, west yorkshore
Posts: 34

United Kingdom 2005 Discovery 3 TDV6 S Auto Siberian SilverDiscovery 3

Barn1e wrote:
I have had the same silver backed felt on mine for two years. No issues and at time car has worked hard towing caravan.

Hardly gets warm in sun towing. Worried I will get frost bite inside in winter. Hope it might help.
Not run a d3 in winter. Only sr2a and 300tdi both fridges. might buy muff for front for winter frost.
Has anybody got one on yet?
 Land rovers are to prevent you having idle hands.  
Post #172102017th Oct 2016 4:25 pm
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lynalldiscovery
 


Member Since: 22 Dec 2009
Location: Maidstone
Posts: 7274

United Kingdom 2006 Discovery 3 TDV6 Metropolis LE Auto Bonatti GreyDiscovery 3

Wez wrote:

Did mine today. Foil backed sound proofing. Took decibel reading before and after... app on tablet ! ! Even stook spare to underside of bonet, then put felt back on. On readings only 2 db less. But it does sound quieter when revs are up. Mind games. On the plus side, did find melted bare wires on washer jet under bonet felt. Now removed and potential fire avoided , was it worth it ??


Did my under bonnet today looks quite smart Thumbs Up
  
Post #172551027th Oct 2016 6:41 pm
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Beretta
 


Member Since: 11 Oct 2012
Location: Rochdale
Posts: 1180

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

Just ordered some up to replace the engine cover as all the foam has disintegrated.

Tempted to replace the fabric from the bonnet as well as mine has all sagged down.
 2010 Disco 4 HSE
- Digital Dash Club
- GAP BT IID 
 
Post #19348589th Apr 2018 2:42 pm
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conman69
 


Member Since: 11 Aug 2012
Location: Norfolk
Posts: 431

England 2007 Discovery 3 TDV6 GS Manual Java BlackDiscovery 3

Need to do mine as well Thumbs Up
 Discovery3 TDV6 GS
Disco3.co.uk front orange +white tailgate stickers
Belts, pulleys, oil pump replaced, double tow-bar electrics
Land Rover rubber mats throughout, tinted windows, wind deflectors, smoked side repeaters, retro fitted Garmin, smooth leather steering wheel, cruise control + radio switches, 19" HSE wheels, Bearmech side-tubes, BAS IFBH module, roofbars.
LML Star Deluxe 
 
Post #194390410th May 2018 6:42 am
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Beretta
 


Member Since: 11 Oct 2012
Location: Rochdale
Posts: 1180

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

Just to update - as this has become active again - I did mine mid April and I checked it this weekend randomly and its all still fine. Still stuck perfectly.
 2010 Disco 4 HSE
- Digital Dash Club
- GAP BT IID 
 
Post #194390810th May 2018 7:06 am
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conman69
 


Member Since: 11 Aug 2012
Location: Norfolk
Posts: 431

England 2007 Discovery 3 TDV6 GS Manual Java BlackDiscovery 3

Beretta,

Can I ask where you purchased the liner from please.
 Discovery3 TDV6 GS
Disco3.co.uk front orange +white tailgate stickers
Belts, pulleys, oil pump replaced, double tow-bar electrics
Land Rover rubber mats throughout, tinted windows, wind deflectors, smoked side repeaters, retro fitted Garmin, smooth leather steering wheel, cruise control + radio switches, 19" HSE wheels, Bearmech side-tubes, BAS IFBH module, roofbars.
LML Star Deluxe 
 
Post #194391010th May 2018 7:21 am
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conman69
 


Member Since: 11 Aug 2012
Location: Norfolk
Posts: 431

England 2007 Discovery 3 TDV6 GS Manual Java BlackDiscovery 3

Beretta,

Can I ask where you purchased the liner from please.
 Discovery3 TDV6 GS
Disco3.co.uk front orange +white tailgate stickers
Belts, pulleys, oil pump replaced, double tow-bar electrics
Land Rover rubber mats throughout, tinted windows, wind deflectors, smoked side repeaters, retro fitted Garmin, smooth leather steering wheel, cruise control + radio switches, 19" HSE wheels, Bearmech side-tubes, BAS IFBH module, roofbars.
LML Star Deluxe 
 
Post #194391310th May 2018 7:27 am
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Beretta
 


Member Since: 11 Oct 2012
Location: Rochdale
Posts: 1180

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4

Sure, I got mine from eBay -

https://www.ebay.co.uk/itm/1m-GlassMAT-Eng...2749.l2649

Nothing to do with me, but thats what I used. You get enough to do two I would say, or have plenty left over for another project.
 2010 Disco 4 HSE
- Digital Dash Club
- GAP BT IID 
 
Post #194391910th May 2018 7:38 am
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conman69
 


Member Since: 11 Aug 2012
Location: Norfolk
Posts: 431

England 2007 Discovery 3 TDV6 GS Manual Java BlackDiscovery 3

Cheers bud Thumbs Up
 Discovery3 TDV6 GS
Disco3.co.uk front orange +white tailgate stickers
Belts, pulleys, oil pump replaced, double tow-bar electrics
Land Rover rubber mats throughout, tinted windows, wind deflectors, smoked side repeaters, retro fitted Garmin, smooth leather steering wheel, cruise control + radio switches, 19" HSE wheels, Bearmech side-tubes, BAS IFBH module, roofbars.
LML Star Deluxe 
 
Post #194392310th May 2018 7:53 am
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mek
 


Member Since: 18 Mar 2015
Location: Zurich
Posts: 468

Switzerland 2006 Discovery 3 TDV6 Base 5 Seat Manual Tonga GreenDiscovery 3

Another convert here - did mine a while back. That stuff does the job nicely; no longer do I worry about bits going in the oil filler!
  
Post #194406010th May 2018 3:05 pm
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rrhool
 


Member Since: 28 Aug 2014
Location: Norfolk
Posts: 4398

United Kingdom 2007 Discovery 3 TDV6 SE Manual Zermatt SilverDiscovery 3

Did belts and oil service last weekend, and found the sound proofing foam had all but completely fallen off.
Bought some of the GlassMAT from eBay, and fitted today.

Click image to enlarge


Click image to enlarge


Did a crude dB measure with a phone app. Appears to give a 2dB lower reading. I know it's not scientific.

I'll see how it is when I drive home tonight.
 Richard


D3 SE 2007. Triumph 2.5Pi 1973. Ferguson TEA20 1948.



Discovery 2 4.0 ES 2001- Gone
Discovery 1 300Tdi ES '95 - Gone
Range Rover Classic '79 - Gone 
 
Post #194594217th May 2018 12:08 pm
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Beretta
 


Member Since: 11 Oct 2012
Location: Rochdale
Posts: 1180

United Kingdom 2010 Discovery 4 3.0 TDV6 HSE Auto Stornoway GreyDiscovery 4
Added bonus

I checked the underside of the cover last night after a few months, and other than a slight mark its all clean Bow down



So I can assume I dont have anything nasty leaking under there..

My next plan is to remove the old bonnet insulation as this has now all sagged down and looks a right mess!
 2010 Disco 4 HSE
- Digital Dash Club
- GAP BT IID 
 
Post #195305012th Jun 2018 8:45 am
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life - live it
 


Member Since: 14 Apr 2017
Location: Behind you
Posts: 1022

United Kingdom 2012 Discovery 4 3.0 SDV6 XS Auto Corris GreyDiscovery 4
Engine cover

Looks good, will order some today
  
Post #19590312nd Jul 2018 3:21 am
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