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grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

Diesel in Oil

Checked the oil on my defender today and it was just over full and rather thin considering I changed it 150 miles ago. whenever I change it I always do it to midway on the dipstick, so obviously its rising.
I changed the injector seals about 4,000 miles ago (using the correct tool and genuine seals etc) so my question is -

could the injector seals have gone again/I haven't fitted them correctly?

OR

has the head cracked?

if its the former then I'm to too fussed, if its the latter then I have one hell of a bill coming my way!

there isn't any difference in starting or drivability if that helps in remote diagnosis.

any suggestions much appreciated

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

18th Jun 2014 6:27pm

bob neville

Member Since: 30 Apr 2009
Location: Marbella
Posts: 3248

When you say seals, did you do the copper washers and rubber O rings ?

Bob 2015 Jaguar XE240 R Sport - goes like ....... !!
2013 Defender 90 CSW - sold
2009 Defender 110 Double Cab - sold
2001 TD5 90 CSW - offroad project - sold to a forum member
2011 Porsche Boxster - for the sunny days !

18th Jun 2014 6:43pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

I did yes

18th Jun 2014 7:18pm

bob neville

Member Since: 30 Apr 2009
Location: Marbella
Posts: 3248

I guess you cleaned the seats in the head before putting the injectors back ?

I would have thought that if the seals were a problem it would have shown before this.

I had mine done last year along with a new turbo and full oil change. I panicked a bit a few weeks later as the oil level seemed to rise. The smell test on the dipstick did not seem like diesel so I left it for a few weeks, checking the level regularly and it settled down eventually.

Any change in water level or smoke on start up ?

As yours is a 15P engine you 'should' have the metal head locating pins but there does not seem to a definitive answer to what engine numbers onwards these were fitted to.

I would be tempted to pull the injectors again and see if there is any sign to damage to the seals (you will have to fit new ones again) before ripping the head off to get it pressure tested.

If you want it checked out I know a good Indie in Wellington who works on mine.

Bob 2015 Jaguar XE240 R Sport - goes like ....... !!
2013 Defender 90 CSW - sold
2009 Defender 110 Double Cab - sold
2001 TD5 90 CSW - offroad project - sold to a forum member
2011 Porsche Boxster - for the sunny days !

Last edited by bob neville on 18th Jun 2014 7:44pm. Edited 1 time in total

18th Jun 2014 7:42pm

diesel_jim

Member Since: 13 Oct 2008
Location: hiding
Posts: 6095

Could be either.

Cheapest way is to change the seals again. see if it still rises.

PITA, but saves pulling the head off straight away.

18th Jun 2014 7:42pm

Nidge

Member Since: 27 Jan 2008
Location: Kildare Ireland
Posts: 818

2009 Defender 110 Puma 2.4 HCPU Cairns Blue

I've been thru this, as above change the seals first and if you driving it change the oil often. I was getting 3lts of diesel in the sump every 2weeks.

When you doing the seals again look very closely at cylinder no1 injector seat, as its a know week spot,
I have attached a pic. of what mine looked like. If you open the picture you can see the crack on the right of the port at about 2 o'clock as you look at it.
This head also passed a pressure test...

Nigel

Click image to enlarge

18th Jun 2014 8:11pm

Blacktt600

Member Since: 30 Nov 2013
Location: Leeds
Posts: 125

2008 Defender 110 Puma 2.4 XS CSW Cairns Blue

As above, seals replaced ( cheaper option) but unfortunately it turned out to be the head. On the plus side you end up with a very clean internals, down side it costs 2k+ for a new head.
Martin

18th Jun 2014 8:16pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

Well the earliest I can re do the injectors is next weekend I'm going to the Peak District in it this weekend, looks like I'll have to take it super steady. Hopefully the zx1 treatment will do something

18th Jun 2014 9:17pm

Blacktt600

Member Since: 30 Nov 2013
Location: Leeds
Posts: 125

Just be prepared to drain a couple of pints off. I checked mine every 100 mile and i managed 500 mile before draing 4 pints out, at that point it was obvious it was serious.
Martin

18th Jun 2014 9:33pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

Cancled the 500 mile trip as it's too much of a risk towing a loaded box trailer. My next question is, if it is the head. Do I buy a new one or have my one repaired? No point in having a second hand one as the history of it will be unknown. Any thoughts? 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

19th Jun 2014 1:09pm

bob neville

Member Since: 30 Apr 2009
Location: Marbella
Posts: 3248

I would go for the AMC one from Turner Engineeering, not heard anything bad about them

Bob 2015 Jaguar XE240 R Sport - goes like ....... !!
2013 Defender 90 CSW - sold
2009 Defender 110 Double Cab - sold
2001 TD5 90 CSW - offroad project - sold to a forum member
2011 Porsche Boxster - for the sunny days !

19th Jun 2014 3:50pm

Laurie

Member Since: 22 Feb 2008
Location: Sussex, England
Posts: 2897

2005 Defender 90 Td5 XS CSW Bonatti Grey

IMO Turners rebuild Land Rover engines better than LR built them in the first place.

19th Jun 2014 4:09pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4786

Just finished my defender, changed all the seals again after very carefully cleaning and inspecting the injector chambers for cracks.

Couldn't see anything with a strong magnifying glass.

Put it all together very carefully and everything was surgically clean. Hopefully that cures it but I'm not holding my breath, if the oil level starts rising now then it's the head for sure

21st Jun 2014 10:55pm

Podrob

Member Since: 20 May 2012
Location: Co Derry, N Ireland
Posts: 31

Had same problem on mine a few years ago. Replaced seals didn't sort it. Got a new AMC Head and have had no issues since. I could not see any cracks on the old head when examined

29th Jul 2014 9:38pm

excossack

Member Since: 22 Feb 2012
Location: North West
Posts: 5852

1999 Defender 110 Td5 SW Caledonian Blue

bob neville wrote:
I would go for the AMC one from Turner Engineeering, not heard anything bad about them

Bob

That's the head I have on mine now 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

29th Jul 2014 9:49pm

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