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CR

Member Since: 28 Jan 2010
Location: Ireland
Posts: 947

2011 Defender 110 Puma 2.4 CSW Santorini Black

Any idea?

I have a new noise which appears to be coming from the
turbo like it is drawing in air, most noticeable at 2000rpm no
lose of power just the noise like a whine.
svx has 20k km and it has just started.
Who knows what ?

Cheers

31st Aug 2010 8:42pm

Eduardo

Member Since: 28 Aug 2008
Location: Región Metropolitana
Posts: 2110

2007 Defender 110 Puma 2.4 SW Stornoway Grey

Hi CR

I had 2 issues with the Turbo that can be the problem that you have.

1.- Turbo hose with perforations.
2.- Inlet turbo manifold but sounds quite loudy

Cheers! Eduardo

MY 2007 110 SW PUMA 2.4: Big Fog of 64'
MY 1994 Jayco 1207 Folding camper: "El Tremendo"

Click image to enlarge

31st Aug 2010 9:58pm

blackwolf

Member Since: 03 Nov 2009
Location: South West England
Posts: 17566

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

This sounds very like my current turbo "issue".

Started off as a noise very similar to a slipping drive belt - a shrieking sound - when the turbo is boosting; other threads on this forum suggested that it could be a leak from the exhaust manifold to turbo joint, with the gasket vibrating (search for "turbo flange" to find the two threads).

All of a suddent the shrieking stopped but was replaced with a really loud hissing sound instead, which again happens only when accelerating or under conditions when the boost pressure is up.

This afternoon I started to fit a replacement gasket between the turbo and manifold, but once the heatshield was off I could find no trace at all of a leak from that joint. I did notice however that the front branch of the exhaust manifold was loose on the head; the two setscrews could be tightened one full turn by hand before needing a spanner. Unfortunately I didn't have a spare exhaust manifold gasket, but tightening the manifold has I think reduced the hiss somewhat. Tomorrow I will try to get a new gasket.

Have a look at the other two threads - there is a lot of detail (and excellent photos) - but it does sound like a leak somewhere between the head and the turbo.

31st Aug 2010 10:14pm

AndrewS

Member Since: 10 Apr 2007
Location: Hereford
Posts: 3709

2013 Defender 130 Puma 2.2 SW Rimini Red

Re: Any idea?

CR wrote:
I have a new noise which appears to be coming from the
turbo like it is drawing in air,

Has your truck been re-mapped 130's have feeling's as well you know

1st Sep 2010 7:11am

CR

Member Since: 28 Jan 2010
Location: Ireland
Posts: 947

Yes, twisted performance

1st Sep 2010 7:42am

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