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carlskii



Member Since: 07 May 2013
Location: UK
Posts: 5

Loud tapping and injectors bouncing up and down
My 2007 Defender developed a strange problem this morning.

Basically the engine developed a really load clacking/tapping noise. When I looked under the hood the first and second fuel injectors seemed to be bouncing up and down significantly more than the other two!

Could the this be an injector issue or something more sinister?

Carl
Post #233449 7th May 2013 3:42pm
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dgardel



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

Italy 
Re: Loud tapping and injectors bouncing up and down
carlskii wrote:
My 2007 Defender developed a strange problem this morning.

Basically the engine developed a really load clacking/tapping noise. When I looked under the hood the first and second fuel injectors seemed to be bouncing up and down significantly more than the other two!

Could the this be an injector issue or something more sinister?

Carl



YES

probably you have a problem with the retain screw (the screw in the middle of the 1-2 injectors fork) Discovery 5 td6 HSE Stornoway Gray Outback Engineering Limited Edition

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Post #233455 7th May 2013 3:49pm
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carlskii



Member Since: 07 May 2013
Location: UK
Posts: 5

That's a relief, although I guess it could be expensive!

Its just been recovered and taken to a local independent dealer.

Thanks for getting back!
Post #233462 7th May 2013 4:02pm
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BIGFOG



Member Since: 12 Sep 2010
Location: Edenbridge
Posts: 537

United Kingdom 2009 Defender 110 Puma 2.4 USW Stornoway Grey
carlskii wrote:
That's a relief, although I guess it could be expensive!

Its just been recovered and taken to a local independent dealer.

Thanks for getting back!


Were you able to resolve the rattle or not - where or what is the retain screw... any pictures?
Cheers BF 2009 XS 110 Utility Stornaway Grey
BAS re Remap, BAS Turbo, BAS Spec Modified Airbox, Twisted Side exit Decat Exhaust, Allisport Cooler and Hoses, OME Sport Shocks, Kangaroo Paw Discs.
2001 Discovery II
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Post #233869 8th May 2013 8:15pm
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carlskii



Member Since: 07 May 2013
Location: UK
Posts: 5

Yes thanks - as per dgardel response the problem was with the injector mountings. They just need to be re-tightened. The guys at Berkshire said they had never seen this before on a Puma engine.
Post #233890 8th May 2013 8:59pm
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billewizz



Member Since: 16 Sep 2011
Location: north lincs
Posts: 66

England 
i have just had the exact same poblem on my 57 late defender same symtoms and same cylinders, now the main dealer is wriggling out of covering it under landrover approved warranty.
surly if this screw is not included under the service schedule to be checked and re-torqued then it has failed and should be covered under warranty ?
Post #234459 10th May 2013 9:00pm
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agentmulder



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

Kuwait 
So recent experience indicates that this is what it looks like:




In terms of fix there is a fiddly removal of the plastic harness retainer thingy before an 8mm bolt that needs fastening:


Click image to enlarge


Re-torqueing is a bit random however as it is a 'torque to yield' bolt, as in the idea is that you're actually stretching/deforming the bolt as you tighten the extra 180degrees of turn mentioned in the WSM (after an initial 6Nm):


Click image to enlarge


This is a one off job, and simply following the same procedure is very (very) unlikely to yield the intended engineering result. Of course you've gotta get home, and it's already as bad as it can get so fastening it 'somewhat' is the best way forward, I simply suggest that once home and dry with whiskey and Terry's chocolate orange in hand that you order two more bolts (may as well do the other one right?) and do it properly once they arrive. Solved the bowel problem, working on the consonants...
Post #589945 3rd Jan 2017 11:53pm
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