 | Home > Puma (Tdci) > Turbo Whizzzzz |
 
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| Scotm Member Since: 28 Feb 2014 Location: Aberdeenshire Posts: 648   
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Loose or cracked heat shield over the turbo?
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14th Sep 2018 8:14am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16999  
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Probably either a leak from an intercooler hose or a leak between the exhaust manifold and head or manifold and turbo.
A common problem. |
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14th Sep 2018 8:42am |
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| Cupboard Member Since: 21 Mar 2014 Location: Suffolk Posts: 2971 
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Have you got the radio on? Depending on what I've got plugged in to my radio I can get all sorts of exciting noises that change with engine revs.
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14th Sep 2018 10:51am |
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| BenB8man Member Since: 22 Mar 2017 Location: Norfolk Posts: 427
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I've taken off the little foil cover, so can't be that.
I'll check the radio, but it's a posh aftermarket one and the intermittent nature of the noise leads me away from this. I've had that sort of noise before though, think it was a slightly dodgy ground. I was thinking about the blown gasket, been reading into it but no one has mentioned it being intermittent, everyone has said that once it goes it doesn't stop. Same with hoses. I'll have a poke around to check, but she pulls fine! |
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14th Sep 2018 12:36pm |
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| Co1 Member Since: 19 Aug 2018 Location: North Yorkshire Posts: 3633 
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+1 for the hoses. Once you get above a certain pressure, leaks that were once invisible and sealed will start to leak. Cover the hoses in washing up liquid and get someone to rev the engine while you look for bubbles.
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14th Sep 2018 1:35pm |
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| Grenadier Member Since: 23 Jul 2014 Location: The foot of Mont Blanc... Posts: 5765  
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Does it sound like a round-saw just as you’ve released your finger off the trigger and it’s slowing down? If so, I had it too, with many of the same answers from the forum. It’s now stopped, with three clear things having happened since. Catastrophic failure of the output shaft (now replaced); replaced clutch (at the same time), old clutch plate was almost flat; topped up coolant (EGR and limp mode came on, coolant down by three litres
 ). But if I worked it hard and then released I think I got exactly the sound you’re describing. Since those changes, zilch. Not one occasion. Any of that sound familiar? Monsieur Le Grenadier
I've not been everywhere, but it's on my list..... 2011 Puma 110DC - Corris Grey |
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14th Sep 2018 2:49pm |
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| BenB8man Member Since: 22 Mar 2017 Location: Norfolk Posts: 427
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I'm about to have a proper pole around, so I'll add those to the list. Certain it's turbo related though, as I drop the clutch so o can hear the revs more. Also a fairly new clutch and I've put an Ashcroft shaft in too.
If I had the time I'd inspect the turbo, but I'm leaving in the morning! Thanks for your help! |
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14th Sep 2018 2:59pm |
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| Greyman110 Member Since: 29 Sep 2017 Location: London Posts: 326
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I had a turbo noise that came in under harder acceleration. I thought it was quite cool...a bit of "fast n' furious" coolness in a defender ... Took it to the dealer to show it off ... One new replaced-under-warranty turbo later and it's back to regular defendering for me
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14th Sep 2018 3:42pm |
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| Tardis Member Since: 24 Nov 2017 Location: Hannover Posts: 22  
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Could be as trivial as a defective gas hose between the head cover and air intake (green one below). I once forgot to reconnect mine to the air intake and could hear a sound when accelerating like a very remote turbo spinning up and down.
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14th Sep 2018 8:44pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 16999
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Gasket is most definitely intermittent in most cases.
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14th Sep 2018 9:40pm |
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