 | Home > Puma (Tdci) > Why my turbo leaked |
 
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731   
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Just out of interest, I set a ruler against the "leaky face" of the old turbo manifold. Two sides of the triangle were flat but the other...
[URL=]  Click image to enlarge[/URL] A 1-2 mm warp explains why even the Nakatanenga gasket couldn't help :roll: Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated  Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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3rd Jul 2014 6:40pm |
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| big steve Member Since: 24 Dec 2009 Location: hertfordshire Posts: 2456  
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as said in previouse posts i had this problem on my 2.4 the only way i sorted it was to get it machined flat refit to car to run then had to do it all again after that it didnt do it any more same with td5 manifolds machine them flat once distorted and the problem disapears
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 |
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3rd Jul 2014 7:00pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Yup - skim it and sell it
 Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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3rd Jul 2014 8:32pm |
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| landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5665 
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You selling the pre warped one? Is it not best to refit warped once skimmed?
What money is a warped, now machined flat manifold worth 
Andy |
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3rd Jul 2014 10:03pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Have just fitted a new BAS turbo. The improved internals are built into used units and skimmed, therefore (hopefully) won't warp any more. The picture is of the old one I took off. It will be machined flat and resold as it shouldn't warp any more than it has already, although naturally I will inform prospective buyers of its history
Matt Tell someone you love them today because life is short. But shout it at them in German because life is also terrifying and confusing... |
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3rd Jul 2014 10:15pm |
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| landy andy Member Since: 15 Feb 2009 Location: Ware, Herts Posts: 5665
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Ohhhh it's the turbo that warps not the manifold.
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3rd Jul 2014 10:18pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Sorry - I'm not always so clear - should have said the turbo face onto the manifold
 Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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3rd Jul 2014 10:26pm |
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| Grouse Member Since: 16 Apr 2012 Location: on the hill Posts: 520 |
Chipped / remapped vehicles by any chance ? I have heard of this on quite a few Range Rovers where they have been remapped by dodgy engine tech's over fuelling and increasing turbo boost pressures in excess - causing overheating and warpage
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4th Jul 2014 4:03am |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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Remapped... but reputably by BAS - many others run the same system and don't have problems.
As big steve says above, if they do warp initially, once they are machined flat, they seem to be quite stable. Tell someone you love them today because life is short. But shout it at them in German because life is also terrifying and confusing... |
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4th Jul 2014 6:21am |
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| big steve Member Since: 24 Dec 2009 Location: hertfordshire Posts: 2456
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This is commonly know on standard cars also
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 |
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4th Jul 2014 6:30am |
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| Natlas Member Since: 20 Mar 2013 Location: West Sussex Posts: 460 
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Yes apparently it's not unknown for new and freshly machined steel/iron castings to distort after machining, known as 'green' castings. I came across it on a non-vehicle related product about 25 years ago which needed close tolerances - don't think they ever found a cure for that one. 2.2 90 XS
88" Series One Old Norton
Minerva |
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4th Jul 2014 7:29pm |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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So, the new turbo is being refitted with a copper gasket, as well as a temperature sensor to check I don't run it over 800 degrees C
Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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7th Jul 2014 6:43am |
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| HMARR Member Since: 04 Jun 2013 Location: New Zealand Posts: 56 |
What are the symptoms of a warped turbo? How would I know?
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7th Jul 2014 7:52am |
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| ZeDefender Member Since: 15 Sep 2011 Location: Munich Posts: 4731
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It's just the manifold mating surface (triangular) that warps when it gets overheated. You would know when you get a screeching noise when you give it some gas (sounds like a slipping fan-belt or blowing through a blade of grass). If it gets bad enough, the gap becomes too wide to screech and you'll notice an exhaust smell in the engine compartment or through the air vents inside.
That being said, it's not likely to happen unless you're unlucky (like me)  Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing... |
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7th Jul 2014 9:10am |
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