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furianer



Member Since: 06 Feb 2011
Location: Coomberdale Western Australia
Posts: 27

Switzerland 
2.4 knocking
This sick sounding 2.4 defender got dropped of at my workshop today.

No smoke, oil and water ok
Oil pressure ok
Any clues

Thanks a lot

Richard
Post #585468 15th Dec 2016 10:31pm
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custom90



Member Since: 21 Jan 2010
Location: South West, England.
Posts: 20311

United Kingdom 
Injectors possibly. (Injectors possibly if they do need changing they'll need an injector learn completed afterwards.) ⭐️⭐️God Bless the USA 🇬🇧🇺🇸 ⭐️⭐️
Post #585473 15th Dec 2016 11:15pm
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dgardel



Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586

Italy 
It's seem a hydraulic lifter..... Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

IID Pro MV License
Post #585517 16th Dec 2016 7:57am
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furianer



Member Since: 06 Feb 2011
Location: Coomberdale Western Australia
Posts: 27

Switzerland 
It is more of a maschine guns, ratchet noise

I wouldn't expect this sort of noise from a lifter or injector, this ford finest has only done 20000km since it got rebuild new injectors and all

But thanks for being with me on this one


Post #585566 16th Dec 2016 12:43pm
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ian series 1



Member Since: 17 Nov 2014
Location: south
Posts: 3127

United Kingdom 2008 Defender 90 Puma 2.4 CSW Bonatti Grey
Have you had the rocker cover off?

Cam carriers can crack around the bolt holes, worth checking out the camshafts too.
Ive had dealings with a transit with similar symptoms. 80" 80" 86" 88" 90"

Wanted, Forward Control Anything considered.
Post #585571 16th Dec 2016 1:15pm
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furianer



Member Since: 06 Feb 2011
Location: Coomberdale Western Australia
Posts: 27

Switzerland 
car is going back to the company who did the rebuild

so it is wait and see

ill keep you posted

merry x-mas

Richard
Post #585578 16th Dec 2016 2:02pm
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ROBBONTHEROCK



Member Since: 23 Jun 2014
Location: Aberdeenshire
Posts: 637

Scotland 2007 Defender 110 Puma 2.4 XS CSW Firenze Red
Piston slap?

Worn bores due to the piston control jets not working properly?

I note the engine is cold, so slap would be loud until it heats up, does the noise disappear when up to temp?

I believe there is a technical bulletin on that, I believe some early 2.4 TDCi's are susceptible to it and there is a serial number to check for.

Cheers
Andy
Post #585599 16th Dec 2016 3:20pm
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dgardel



Member Since: 30 Nov 2008
Location: Veneto (Heart & Head)
Posts: 3586

Italy 
or earlier defender oil jet problem.....

In this case....


You need a new engine.....

SSM38792 https://1drv.ms/b/s!AnHBx4Wc2MJLhGAuoBGrEX65J4KG

I hope for you I'm wrong Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

IID Pro MV License
Post #586004 18th Dec 2016 8:41am
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stobbie



Member Since: 04 Dec 2015
Location: zenderen
Posts: 17

Netherlands 2009 Defender 130 Puma 2.4 HCPU Fuji White
Any news on this one?
Post #599925 7th Feb 2017 8:13pm
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4785

United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
Knocking noise can come from a loose injector. Been a couple of reports of this on the angry pumas Facebook page..... 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #599993 7th Feb 2017 11:12pm
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agentmulder



Member Since: 16 Apr 2016
Location: Outer Space
Posts: 1324

Kuwait 
I was going to say it sounded just like mine when it had the same issue - thing is, I couldn't see any up and down movement in the video ...

Did they simply replace the torque to yield bolt? Or do seals and check the seats etc. ? (injectors are clamped in pairs) Solved the bowel problem, working on the consonants...
Post #600608 10th Feb 2017 9:37am
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blackwolf



Member Since: 03 Nov 2009
Location: South West England
Posts: 17359

United Kingdom 2007 Defender 110 Puma 2.4 DCPU Stornoway Grey
If an injector is loose, the seal should be renewed as part of the repair. Since the Puma has one clamp per pair, both seals should be renewed since it is unlikely that one injector only is loose.

If the injector is loose it is likely that the seal will be damaged either by the action of the injector bouncing up and down on it, or by erosion from expelled compressed gas and combustion byproducts on the compression and power strokes. Whilst you might get away for a temporary repair without replacing the seal, it would be an interim measure.
Post #600611 10th Feb 2017 10:05am
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