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AndrewS



Member Since: 10 Apr 2007
Location: Hereford
Posts: 3709
United Kingdom 2013 Defender 130 Puma 2.2 SW Rimini Red
Squealing Exhaust
The utility has been back into the dealers a few times now for a “Squealing” exhaust noise. The best way to describe the noise is as follows. As a child I used to drive my parents mad….. er hang on forgot were I was for a moment. Anyway as a child can you remember getting a blade of grass placing it between your thumbs and blowing Rolling Eyes The resulting noise is similar to the noise this vehicle produces when accelerating or crusing. Clearly there is an issue she has had 2 new turbo’s and 3 new turbo to manifold gaskets.
I have decided to take things into my own hands and have stripped the turbo from the engine. The first findings we noticed were soot deposits on the intake side of the turbo and mating flanges. When we removed the turbo (30miutes) we noticed that the triangular stainless steel gasket had a crack in it on one of the narrow widths. I am going to check that the mating surfaces are flat. If they are then I will fit a suitable higher standard gasket. As the tinfoil that Ford Twisted Evil have specified is clearly not up to the job.


Zoom in to this pic (sorry Martin used full BBCode) to see soot deposits and where the gasses ware escaping from. Unfortunately you cant see in this picture the soot to the right of the yellow arrow as the turbo housing is in the way.

Click image to enlarge


Evidence of gasses escaping from flange

Click image to enlarge

Soot on the turbo housing

Click image to enlarge
Post #3196 14th Aug 2008 1:32pm
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bell-auto-services



Member Since: 08 Jul 2007
Location: North Yorkshire
Posts: 2233
United Kingdom 2013 Defender 110 Puma 2.2 USW Orkney Grey
Nice pictures Andrew these for sure will help other forum members,
have you refitted the turbo yet with a new gasket or a upgraded one ?

Give me a shout if you manage to locate a better replacement gasket id be very intrested in the final soloution you have come to.
Also let me know if you did actualy find if the mating faces were out of shape.




Regards Pete
Post #3200 14th Aug 2008 8:58pm
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AndrewS



Member Since: 10 Apr 2007
Location: Hereford
Posts: 3709
United Kingdom 2013 Defender 130 Puma 2.2 SW Rimini Red
Pete

I have found a gasket supplier that has something suitable only thing is I have to pay for the tooling as the gaskets are tough little Censored and they will have to be pressed out.
I have not had chance to check the mating surfaces yet but hope to later. I will keep you informed Thumbs Up
Post #3201 15th Aug 2008 11:56am
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AndrewS



Member Since: 10 Apr 2007
Location: Hereford
Posts: 3709
United Kingdom 2013 Defender 130 Puma 2.2 SW Rimini Red
Found that the flange on the exhaust manifold had warped Shocked


Click image to enlarge
Post #3209 15th Aug 2008 7:40pm
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London Lad



Member Since: 04 Jul 2008
Location: Suffolk
Posts: 4
United Kingdom 
Thats a pain Crying or Very sad
Post #3210 15th Aug 2008 8:15pm
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bell-auto-services



Member Since: 08 Jul 2007
Location: North Yorkshire
Posts: 2233
United Kingdom 2013 Defender 110 Puma 2.2 USW Orkney Grey
At least you found the problem Smile

better than landrover all they can do is fit new gaskets lol
Post #3211 15th Aug 2008 9:15pm
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Bogblaster



Member Since: 04 Jun 2007
Location: Glawstershire
Posts: 119
United Kingdom 2016 Defender 90 Puma 2.2 Adventure Corris Grey
Been there got the T-shirt Andrew! On my 2nd Turbo now and they realised that when they fitted that they hadn't tightened it properly, otherwise they would have fitted a 3rd..... Were you towing when it started sqealing? All 3 times I have had problems I was towing, but (and I am touching wood) it has been fine for the last 2 months, picked up a new digger and trailer today and towed it 30 miles home with no issues, which is nice! Also towed an Ifor Williams with Whistle about 6 tonnes of spoil on it from one side of the site to the other (about 600 metres of mud and slopes) with no worrying noises so it's looking like mine is cured. 2019 MY Disco 5 HSE Lux
Audi A4 Avant 3.0L TDI Quattro - WOW
2016 90 Adventure
Post #3212 15th Aug 2008 10:02pm
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AndrewS



Member Since: 10 Apr 2007
Location: Hereford
Posts: 3709
United Kingdom 2013 Defender 130 Puma 2.2 SW Rimini Red
Bogblaster wrote:
Were you towing when it started sqealing?


No it simply got noisier and noisier over time.


I have machined the flange flat and will fit a new crap LR stainless steel gasket to see what happens.
Post #3213 16th Aug 2008 7:32am
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AndrewS



Member Since: 10 Apr 2007
Location: Hereford
Posts: 3709
United Kingdom 2013 Defender 130 Puma 2.2 SW Rimini Red
This is the turbo flange during machining.



Post #3217 16th Aug 2008 4:17pm
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Bogblaster



Member Since: 04 Jun 2007
Location: Glawstershire
Posts: 119
United Kingdom 2016 Defender 90 Puma 2.2 Adventure Corris Grey
Don't want to interfere Andrew, but I really think that you should have used something a little more refined than a Stihl chainsaw for your machining Rolling with laughter Rolling with laughter

I know your shed is an agricultural building, but come on! Very Happy 2019 MY Disco 5 HSE Lux
Audi A4 Avant 3.0L TDI Quattro - WOW
2016 90 Adventure
Post #3218 16th Aug 2008 6:44pm
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bell-auto-services



Member Since: 08 Jul 2007
Location: North Yorkshire
Posts: 2233
United Kingdom 2013 Defender 110 Puma 2.2 USW Orkney Grey
Bogblaster wrote:
Don't want to interfere Andrew, but I really think that you should have used something a little more refined than a Stihl chainsaw for your machining Rolling with laughter Rolling with laughter

I know your shed is an agricultural building, but come on! Very Happy


I dont know !! He may actualy do a better job than landrover of fitting a turbo even if it is with a chainsaw lol..

I must admit it does make you think what is going on considering Garrett is suposed to be the dogs danglies of turbos.

Regards Pete
Post #3219 16th Aug 2008 6:56pm
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pom



Member Since: 01 Jun 2010
Location: Worcester
Posts: 1343
did LR fix this in the end Andrew ?

I noticed similar happening on mine.

Pom
Post #60379 21st Feb 2011 3:43pm
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big steve



Member Since: 24 Dec 2009
Location: hertfordshire
Posts: 2456
United Kingdom 2015 Defender 90 Puma 2.2 HT Montalcino Red
no all they do is put a new gasket in im currently in the process of having something made so watch this space

steve 2015 2.2 tdci hardtop xs
3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P
hybrid turbo in build -done ready to fit
ashcroft atb in transfer box
6 speed auto in build
Post #60383 21st Feb 2011 3:56pm
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