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Nevillerover



Member Since: 14 Feb 2015
Location: Suffolk
Posts: 224

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Sumatra Black
Oil round injector

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Hi, I just took the top plastic off my 2.4 and there is a bit of what appears to be black oil (like engine oil) in the recess around the No3 injector. It's not thin like deisel but thick and black, like it's been there a while cooking. It isn't a big puddle. Is this likely to be something like a rocker cover gasket weeping rather than an injector problem? If so, is there a rocker cover gasket that's easy to change? I've never had to worry about that before as there are no tappets to adjust. Any advice gratefully received.
Post #409212 20th Mar 2015 11:18am
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fatman



Member Since: 14 Jan 2014
Location: Athens-Greece
Posts: 126

Greece 2007 Defender 110 Puma 2.4 USW Keswick Green
AFAIK youl'have to remove every single pipe and cable that runs over the rocker cover then remove the injectors so therefore you must change the retaining stretch bolts and the injector sealing washers and all this just to change the rocker cover seals Crying or Very sad
And i was complaining about the Td5' unit injectors that were "burried" inside the rocker cover Confused
Post #409216 20th Mar 2015 11:46am
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
the rocker/cam cover gasket doesn't seal round the injector , no need to touch cover bolts pipes etc

each injector has its own sealing ring , remove pipe and wiring to that injector and one next to it ( clamp holds two injectors so you need to do both ) and pick out sealing rings round the 2 injectors , seals should pull out with injector

pull out injectors normally come out easy , need to fit new copper washers to injectors and clean injector seat and fit new sealing rings and clamp bolt

20min job if you done them before , bit longer if you have not , just keep everything clean and cap removed pipe fittings etc
Post #409224 20th Mar 2015 12:06pm
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Nevillerover



Member Since: 14 Feb 2015
Location: Suffolk
Posts: 224

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Sumatra Black
Thanks chaps, Munch are you saying that you think it is an injector seal rather than rocker cover? Is it something I can live with?
Post #409227 20th Mar 2015 12:16pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
hard to say really , but you have to remove injector so you would need to do injector seals anyway

cover gasket is only round the outside of cover , it doesn't go round injectors

seals are bit like this eBay item number:

eBay Item No. 251292571580

you would need to check type of seal ( just picked first ones I come to , to give you a idea)
Post #409229 20th Mar 2015 12:37pm
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Canberra Man



Member Since: 31 Oct 2011
Location: Staffordshire
Posts: 15

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Java Black
"Munch are you saying that you think it is an injector seal rather than rocker cover? Is it something I can live with?"

If the seal is letting go then it's not something you want to live with. I've just had the seals replaced on my 2.4, 2 out of the 4 were leaking. The symptoms were heavy breathing when the oil filler cap was removed, the excess pressure eventually led to an oil leak.

Changed the seals, rocker cover pressure now OK, oil leak gone.

I was advised to go back after a couple of weeks to have them checked to ensure still tight
Post #409236 20th Mar 2015 1:19pm
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Nevillerover



Member Since: 14 Feb 2015
Location: Suffolk
Posts: 224

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Sumatra Black
Sorry, I'll try not to ask any more after this but the edge of the rocker cover is very close to the injector and my suspicion is that a little bit of engine oil has seeped down into the recess. One of you seems to be saying I need to remove the injectors and pipes etc just to change the rocker gasket but I'm unclear. If I do I think I will leave alone and check it periodically. If I can easily change rocker gasket, I will do it.
Post #409238 20th Mar 2015 1:22pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
if you want to change rocker cover gasket then yes all pipes , injectors need to come out

if you want to change oil seal round injector then just the 2 injectors need to come out , leave others and cover in place

the cover goes right from one side to the other in one piece like this roughly eBay item number:

eBay Item No. 291365320789


Last edited by munch90 on 20th Mar 2015 1:36pm. Edited 1 time in total
Post #409241 20th Mar 2015 1:30pm
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Nevillerover



Member Since: 14 Feb 2015
Location: Suffolk
Posts: 224

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Sumatra Black
Thank you, decision made. I'll put it on the "watch" list.
Post #409243 20th Mar 2015 1:31pm
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digger2



Member Since: 28 Jul 2012
Location: west yorkshire
Posts: 25

United Kingdom 
I would do it sooner than later as you are blowing carbon in to oil system which could block the oil pick up pipe. it also damages the leaking injector making it very difficult to remove. have seen it several times on transits.
Post #409365 20th Mar 2015 9:05pm
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dgardel



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

Italy 
also check the copper washer (item 14) LR004662 especially if the engine "eat" oil

it's better change all 4 washers

And you MUST change the bolts (item 13) LR004487 (bolts tightened to "enervation")


Click image to enlarge
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Post #409371 20th Mar 2015 9:13pm
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munch90



Member Since: 26 Oct 2013
Location: guildford
Posts: 3558

England 
Like said may as well do them , not hard job

keep dirt out of pipes

clean wire brush where copper washer sits on injector

only thing that you may have to do is clean injector seats in the head if a copper washer has been blowing

buy/borrow injector seat cleaner , something like this
eBay Item No. 130648670180
Post #409416 20th Mar 2015 11:16pm
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o4dn



Member Since: 08 Jan 2010
Location: South West
Posts: 530

France 2009 Defender 90 Puma 2.4 SW Alaska White
Hi,

My injector #3 also seems to have some filth around, it does not look as bad as Nevillerover's tho.

Do you reckon it's leaking, should I take action?


Click image to enlarge
Post #415056 9th Apr 2015 6:19pm
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Nevillerover



Member Since: 14 Feb 2015
Location: Suffolk
Posts: 224

United Kingdom 2007 Defender 110 Puma 2.4 XS CSW Sumatra Black
I thought I might nip the clamp bolt up a bit but can't even figure how to i clip the plug from the injector and didn't want to damage anything so I'm still ignoring it at mo.
Post #415061 9th Apr 2015 6:48pm
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fatman



Member Since: 14 Jan 2014
Location: Athens-Greece
Posts: 126

Greece 2007 Defender 110 Puma 2.4 USW Keswick Green
Be carefull cause i've read (transit) stories for snapped bolts..
Post #415085 9th Apr 2015 7:51pm
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