 | Home > Puma (Tdci) > trumpet noise 2400-2500 rpm |
 
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| vinsell Member Since: 06 Feb 2009 Location: Brindisi (Italy) Posts: 74   
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Hi everybody,
has anybody a little trumpet like noise just before 2500 rpm that disappears at higher engine speed? Thank you. |
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14th Nov 2010 11:24am |
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| Tim_NZ Member Since: 05 May 2008 Location: Australia Posts: 177 
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Check the bolts on the turbo heat sheild, particularly this one:
 Click image to enlarge Cheers, Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated  |
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10th Dec 2010 5:42am |
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| carlaac Member Since: 09 Dec 2010 Location: Hampshire Posts: 58  
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Thanks Tim - job for tomorrow morning (after a blast on the mountain bike
 ) |
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10th Dec 2010 9:47am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17526 
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The last time I had a 'trumpet' noise it was the result of a hole in the pipe from turbo to intercooler where the pipe had been rubbing on the steering box due to sloppy assembly.
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10th Dec 2010 10:17am |
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| vinsell Member Since: 06 Feb 2009 Location: Brindisi (Italy) Posts: 74
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Tank You Tim, I check that bolts and....................I miss it!!!!!! Tomorrow I will fit a new one hoping this is the reason of that annoying sound. Vinicio Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated |
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10th Dec 2010 1:07pm |
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| Tim_NZ Member Since: 05 May 2008 Location: Australia Posts: 177
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Your're welcome vinsell and carlaac, hopefully this is the source of your problem
Cheers, Tim |
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10th Dec 2010 1:26pm |
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| vinsell Member Since: 06 Feb 2009 Location: Brindisi (Italy) Posts: 74
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missing bolt fitted, but noise still appears.......mmh
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11th Dec 2010 4:32pm |
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| Tim_NZ Member Since: 05 May 2008 Location: Australia Posts: 177
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 That's no good, could be a leak in one of the turbo hoses like Blackwolf said.
Cheers, Tim PS Have a look at this thread http://www.defender2.net/forum/topic1707.h...ntercooler |
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12th Dec 2010 9:09am |
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| RFT Member Since: 13 Nov 2010 Location: Cheshire Posts: 683 
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Mine has just been back to dealer under warranty sounded like a bag of hammers between 2600 & 2800rpm, this developed at 7300miles on the clock. Suspected it was a resonating sound, not a pure engine noise.
They did the following: Loaded software update to EM Repositioned and secured Exh manifold turbo heat shield & crankshaft sensor heat shield. Also carried out oil change at my request (130 had done a lot of mountain miles in the alps during summer) So far it has been a lot quieter. Technician suspected it may be a resonating sound from the fuel system. I still have not recovered from the cost of the engine oil but plenty of advice on forum suggests changing at 6K miles not 12K as LR advise. 130 Puma HCPU with an Artica 240LR Demountable Camper |
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13th Dec 2010 2:08pm |
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| Toplink Member Since: 05 Dec 2010 Location: Somerset Posts: 159
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My bolt was missing completely,and on 3 others that have come through our workshop.
Perhaps a money saving ploy.But no trumpet noise. |
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13th Dec 2010 9:54pm |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17526
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That heat shield bolt was missing from mine, as well. When investigating my 'trumpet' sound, I found:-
1) the missing heatshield bolt; refitting made no difference, 2) loose exhaust manifold bolts (front end of manifold) and damaged gasket; new gasket and correct torque made no difference, 3) (finally) small hole in pipe from turbo to intercooler - eureka! problem solved. |
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13th Dec 2010 10:31pm |
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| carlaac Member Since: 09 Dec 2010 Location: Hampshire Posts: 58
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Tim, finally got round to sorting this last weekend, you were right it was the heat shield but the bolt the opposite end was loose. It was driving me mad and now sorted. A few more weeks and it would have worked itself out completely. Cheers Pal Admin note: this post has had its images recovered from a money grabbing photo hosting site and reinstated |
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7th Jan 2011 9:49pm |
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