how effective is vehicle sound-proofing?

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R

Rob Campbell

Guest
Hi,

I've been looking into buying an old London Cab (a Fairway) and took one
out for a test drive. So it has a 2.7L diesel engine and sounds not
unlike a Landrover. As expected, it was a little on the noisy
side--largely noise from the engine.

I've found some places on the net who sell "sound-proofing" solutions
aimed at older Land Rovers, motor homes, or Taxis. Now I'm a little
skeptical about how much noise these things can cut out. Has anyone
tried these out in an older diesel or a preferably a cab?

Cheers!
 

Rob Campbell wrote:
> Hi,
>
> I've been looking into buying an old London Cab (a Fairway) and took one
> out for a test drive. So it has a 2.7L diesel engine and sounds not
> unlike a Landrover. As expected, it was a little on the noisy
> side--largely noise from the engine.
>
> I've found some places on the net who sell "sound-proofing" solutions
> aimed at older Land Rovers, motor homes, or Taxis. Now I'm a little
> skeptical about how much noise these things can cut out. Has anyone
> tried these out in an older diesel or a preferably a cab?
>
> Cheers!


Haven't done it myself but adding soundproofing certainly works. If
you go the route of using the proper materials then it can get very
expensive. Some people say to use ordinary roofing underlay.

 
On Tue, 15 Aug 2006 12:50:18 +0100, Rob Campbell
<[email protected]> wrote:

>Hi,
>
>I've been looking into buying an old London Cab (a Fairway) and took one
>out for a test drive. So it has a 2.7L diesel engine and sounds not
>unlike a Landrover. As expected, it was a little on the noisy
>side--largely noise from the engine.
>
>I've found some places on the net who sell "sound-proofing" solutions
>aimed at older Land Rovers, motor homes, or Taxis. Now I'm a little
>skeptical about how much noise these things can cut out. Has anyone
>tried these out in an older diesel or a preferably a cab?
>
>Cheers!


Dunno but taking the back seat, lugagge cover, boot trim and carpet
out makes my car quite noisy. The only bit that is at all substantial
is the seat back which has a steel sheet in it, boot trim is just card
with fabric facing, the seat base is just thin foam and the lugagge
cover is hardboard with fabric facings. Boot carpet does have a thick
layer of lose underlay but that's more to level the boot floor up with
the full sized spare tyre.
--
Peter Hill
Spamtrap reply domain as per NNTP-Posting-Host in header
Can of worms - what every fisherman wants.
Can of worms - what every PC owner gets!
 
"Rob Campbell" <[email protected]> wrote in message
news:[email protected]...
> Hi,
>
> I've been looking into buying an old London Cab (a Fairway) and took one
> out for a test drive. So it has a 2.7L diesel engine and sounds not unlike
> a Landrover. As expected, it was a little on the noisy side--largely noise
> from the engine.
>
> I've found some places on the net who sell "sound-proofing" solutions
> aimed at older Land Rovers, motor homes, or Taxis. Now I'm a little
> skeptical about how much noise these things can cut out. Has anyone tried
> these out in an older diesel or a preferably a cab?



I can't comment on a cab, but I've seen an old DI Transit stuffed full of
sound insulation. It was noticeably quieter but just as rough, indeed
because it was quieter it seemed rougher. ;)

Now I'm _strange_ and I *like* the diesel noise...

--
The DervMan
www.dervman.com


 
On Tue, 15 Aug 2006 12:50:18 +0100, Rob Campbell
<[email protected]> wrote:

>Hi,
>
>I've been looking into buying an old London Cab (a Fairway) and took one
>out for a test drive. So it has a 2.7L diesel engine and sounds not
>unlike a Landrover. As expected, it was a little on the noisy
>side--largely noise from the engine.
>
>I've found some places on the net who sell "sound-proofing" solutions
>aimed at older Land Rovers, motor homes, or Taxis. Now I'm a little
>skeptical about how much noise these things can cut out. Has anyone
>tried these out in an older diesel or a preferably a cab?
>
>Cheers!


I fitted some soundproofing to my 2.5 diesel 2A. it didnt make it
silent but it made it so that to communicate with the passenger you
only had to talk loudly rather than shout.
 
You can reduce road noise by putting fibreglass insulation bats behind
the door panels and in the rear quarter panels. That's pretty simple,
done from the inside.

What you need to reduce engine noise is to add insulation to the
firewall between the engine and passenger compartments. I've never done
it but given the plethora of things attached to both sides of the
firewall it could be a little complicated. I'd look at adding some sort
of foam (sleeping mat for campers?) under the exsisting interior carpet
where it lays against the firewall.



Rob Campbell wrote:
> Hi,
>
> I've been looking into buying an old London Cab (a Fairway) and took one
> out for a test drive. So it has a 2.7L diesel engine and sounds not
> unlike a Landrover. As expected, it was a little on the noisy
> side--largely noise from the engine.
>
> I've found some places on the net who sell "sound-proofing" solutions
> aimed at older Land Rovers, motor homes, or Taxis. Now I'm a little
> skeptical about how much noise these things can cut out. Has anyone
> tried these out in an older diesel or a preferably a cab?
>
> Cheers!


 
I would say very effective. Just look at how much is shoved into a merc/bm.
The problem is that small holes/gaps let through a lot of noise so you need
to be pretty through. To see how effective it is, try running your gearbox
without the fiberglass transmission tunnel. (Not sure how easy this is , but
was very straight forward on my serIIIs R6.) I was convinced that my gearbox
was completely shagged, and then put the tranny cover back on and g/box
noise was reduced back to its usual deafening roar - as opposed to ear
splitting cacarphony.

Regards
stephen


 
Interestingly enough during a recent spell without my landie, I found
driving a conventional car just too quiet, and I missed being able to tell
what the engine was doing.

Mind you when I really get going a lot of the noise is from the wind roaring
in through my flapping door top :)

--
Larry
Series 3 rust and holes



"Rob Campbell" <[email protected]> wrote in message
news:[email protected]...
> Hi,
>
> I've been looking into buying an old London Cab (a Fairway) and took one
> out for a test drive. So it has a 2.7L diesel engine and sounds not
> unlike a Landrover. As expected, it was a little on the noisy
> side--largely noise from the engine.
>
> I've found some places on the net who sell "sound-proofing" solutions
> aimed at older Land Rovers, motor homes, or Taxis. Now I'm a little
> skeptical about how much noise these things can cut out. Has anyone
> tried these out in an older diesel or a preferably a cab?
>
> Cheers!



 
Thanks for all the replies. You're right, of course. I find that when I
take the road noise louder when I take the boot cover off my Megane. I
shall take the sound proofing as a serious option.

Rob
 
Rob Hi,

a few years ago I decided to soundproof my 1993 evented Camel Trophy
Discovery 200Tdi and was so excited with the results that I started doing
the same for the Landies of several friends and fellow members of the LR
club of Greece (including a Range Rover 4.6 HSE the owner of which was so
satisfied with the results that drove 100 Km to give me a ride with the car
so that I could feel the difference)
After ordering so many kits the owner of the company (noisekiller) has
assigned me as his representative in Greece so let's say that I am connected
with the company.

But the results were there before I started having a connection with the
company, the products and the company's owner (who is now a good friend)

If you wish talk with Steve (phone is 0161 6438070) and I am sure he will be
able to assist you into quieting down your old London Cab.

Take care and greetings from Greece
Pantelis Giamarellos
LAND ROVER CLUB OF GREECE

"Rob Campbell" <[email protected]> wrote in message
news:[email protected]...
> Hi,
>
> I've been looking into buying an old London Cab (a Fairway) and took one
> out for a test drive. So it has a 2.7L diesel engine and sounds not
> unlike a Landrover. As expected, it was a little on the noisy
> side--largely noise from the engine.
>
> I've found some places on the net who sell "sound-proofing" solutions
> aimed at older Land Rovers, motor homes, or Taxis. Now I'm a little
> skeptical about how much noise these things can cut out. Has anyone
> tried these out in an older diesel or a preferably a cab?
>
> Cheers!



 
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