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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7722
2011 Defender 110 Puma 2.4 USW Stornoway Grey
http://www.defender2.net/forum/topic9410.html

is this the same problem? Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #127230 27th Feb 2012 9:03pm
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Naks



Member Since: 27 Jan 2009
Location: Stellenbosch, ZA
Posts: 2605
South Africa 2010 Defender 90 Puma 2.4 SW Alpine White
Re: Screaming Turbo when Hot
BruceT wrote:
Not sure how to discribe this, but after a long trip when my vehicle is hot there is a screaming noise when pulling away in first and 2nd gear.


Bruce, that sounds like a leaking exhaust manifold. Any indication of soot around that area? --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear
2015 Range Rover Sport V8 Supercharged



Defender Puma Workshop Manual: https://bit.ly/2zZ1en9
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Post #127233 27th Feb 2012 9:07pm
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7722
2011 Defender 110 Puma 2.4 USW Stornoway Grey
my thoughts were geared towards viscous as it doesn't always do it. the only times it did/does it on mine would be when i would expect the viscous to be locked up, ie post hard work and then heat soak prior to a pull away

if it was an exhaust manifold wouldn't it do it all the time? Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #127262 27th Feb 2012 10:20pm
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XS Pete



Member Since: 13 Jan 2011
Location: Suffolk
Posts: 632
England 2011 Defender 90 Puma 2.4 XS CSW Stornoway Grey
Quality product placement with the inspection lamp there Brian!

Pete
Post #127283 27th Feb 2012 11:21pm
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BruceT



Member Since: 01 Nov 2010
Location: South Africa
Posts: 516
South Africa 
thanks all for the replies. Will keep an eye on this thread for updates.
Post #127315 28th Feb 2012 6:26am
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Lorryman100



Member Since: 01 Oct 2010
Location: Here
Posts: 2686
XS Pete wrote:
Quality product placement with the inspection lamp there Brian!

Pete


I didn't notice that till you pointed it out. I used it to illuminate the heat shield bolts, if it was the other way around It would light up me instead. Whistle

I've deleted the picture. Thumbs Up
Post #127462 28th Feb 2012 4:55pm
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BruceT



Member Since: 01 Nov 2010
Location: South Africa
Posts: 516
South Africa 
jst wrote:
http://www.defender2.net/forum/topic9410.html

is this the same problem?



JST that sounds like its exactly the same problem as mine.
Post #127607 29th Feb 2012 6:54am
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jst



Member Since: 14 Jan 2008
Location: Taunton
Posts: 7722
2011 Defender 110 Puma 2.4 USW Stornoway Grey
what were your thoughts then leading to turbo over anything else? Cheers

James
110 XS Utility
130 Puma Station wagon/camper (in the making)
90 Puma Hardtop
Post #127701 29th Feb 2012 3:29pm
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BruceT



Member Since: 01 Nov 2010
Location: South Africa
Posts: 516
South Africa 
Reason I thought turbo is because of the sound and it only did it under load or under boost and at no other time. When I released the accelerator and accelerated again it stopped. I read the comment about the clutch but it definitely does not come from that area, unless my ears are playing games on me and I doubt its the fan as I have heard the fan come on in heavy traffic.

Now I am totally guessing with this, and trying to think logically, but I believe that these motors run a variable vein turbo.....I am just wondering if perhaps the veins get "stuck" in one position after a long trip under constant load causing the sound and then release themselves when cooler or asked to work at / stressed at different levels. (hope that makes sense)
Post #127703 29th Feb 2012 3:39pm
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Lorryman100



Member Since: 01 Oct 2010
Location: Here
Posts: 2686
Bruce you can check the control bar between the modulator output arm and the VV control arm. Both ends of the bar should move and it will feel quite loose, there should also be some side to side movement of the bar and both ends should have grease on them. Though I can't see this causing the sound you are on about Confused


Click image to enlarge

Brian.
Post #127819 29th Feb 2012 9:30pm
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BruceT



Member Since: 01 Nov 2010
Location: South Africa
Posts: 516
South Africa 
thank you Brian will check.
Post #127885 1st Mar 2012 7:29am
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pascal



Member Since: 24 Nov 2013
Location: Nicosia
Posts: 21
Cyprus 2013 Defender 110 Puma 2.2 XS DCPU Indus Silver
Re: Screaming Turbo when Hot
BruceT wrote:
Hi all,

Not sure how to discribe this, but after a long trip when my vehicle is hot there is a screaming noise when pulling away in first and 2nd gear.
Doesnt do it any other time. Only when I have done a few hundred kms of highway cruising.

It definately sounds like its related to the turbo.

Any ideas what it could be?

(its a MY11 Puma 110 with 37k kms on it)

Thank you


Finally what was the problem, did u fix it? I have exactly the same issue with my 2014 double cab.
Tnx
Post #322305 8th Apr 2014 7:16am
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BruceT



Member Since: 01 Nov 2010
Location: South Africa
Posts: 516
South Africa 
Yes eventually after being told many times that nothing was wrong, i insisted that Land Rover remove the exhaust from just below the turbo. When they did that they found that it had been leaking at the joint. Never had a problem again. "Overlanding With Bruce" - Youtube https://www.youtube.com/@OverlandingwithBruce
11MY Defender 130
23MY Defender 110 D300 HSE X-Dynamic

https://www.youtube.com/channel/UCzrHKcjA-LJ470_H4QwPgVA
Post #322307 8th Apr 2014 7:20am
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5431
2006 Defender 110 Td5 USW Zermatt Silver
Thanks all for the above comments. Think I have this problem with mine. Sounds between a scream, and a whoosh noise but only when hot and whilst accelerating hard, like pulling away.

Andy
Post #323222 12th Apr 2014 7:43am
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5431
2006 Defender 110 Td5 USW Zermatt Silver
Is Brendan the man to supply the uprated gasket?

Andy
Post #323223 12th Apr 2014 7:56am
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