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Defender marto

Member Since: 14 Mar 2016
Location: Wirral
Posts: 128

Landy went nuts after injector seals renew

Had the injector seals changed today. Picked it up after work and get about 1.5 mile down the road and I had a sudden partial power loss and I think the engine sounded noisy like a tappet had broke. Then I noticed the massive smoke screen I was creating followed by the engine revving up on its own and producing a heck of a lot more white smoke. So pulled over and turned off landy but still running so engaged first gear stepped hard on brake and let the clutch out and the engine stopped. Fortunately garage had not closed yet and came around and picked it up. I am thinkingthe fuel injector seal work has gone wrong somewhere. I even got lr parts to. I wonder if an injector had popped out or something might be the reason for the broken tappet noise. Garage said they will call me tomorrow. I'll update tomorrow.

2nd Feb 2017 7:05pm

LR90XS2011

Member Since: 05 Apr 2011
Location: bickenhill
Posts: 3643

2011 Defender 90 Puma 2.4 XS CSW Galway Green

hope its nothing major, mate had an engine do this with a holed piston! DEFENDER 90 TDCI XS,

I hope everyone is well and your land rovers make you happy

2nd Feb 2017 7:32pm

Justtellme

Member Since: 23 Nov 2015
Location: Ottawa
Posts: 310

Not good....I hope a piston is not holed.
Read recently on here about people not properly draining the fuel prior to pulling the injectors for a seal change.
First Cylinder fills with fuel. All injectors changed, then hydro lock and mechanical damage to the cylinder/ piston that was first injector to be changed soon after start up...normally #1.

Here's hoping that is not what happened.

2nd Feb 2017 7:57pm

lightning

Member Since: 23 Apr 2009
Location: High Peak, Derbyshire
Posts: 2806

Did you replace the injector seals/washers because there was a fault, or just for routine maintenance?

I wanted mine changing when l got my 2005 TD5 two years ago, as a maintenance task.

My local lndy said best to leave alone unless there is actually a fault, as removing them can cause other issues and further problems. I tried to get two other LR specialists to do it but both said leave alone if it's running OK.

The lndy said the injectors "might not re-seal" and the LR dealer "you might end up needing a new head"

Although this is contrary to what l read on forums like this, where no real issues are reported from changing them.

2nd Feb 2017 8:30pm

gazman

Member Since: 17 Aug 2015
Location: Liverpool
Posts: 652

I hope it's just they have done a

job and not sealed one properly. It's then filled the motor with diesel and the oil level has gone up and it's started to run away by running on is own oil.

Caught quickly you shouldn't have damaged it. 2014 - current ..... 2003 defender td5 90 (my car)
2009 - current .... 2005 zx10r

3rd Feb 2017 12:00pm

Laurie

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

2005 Defender 90 Td5 XS CSW Bonatti Grey

Hopefully just one injector stuck open.
'Hydraulicking' would sound lick a stuck valve.

3rd Feb 2017 12:08pm

Defender marto

Member Since: 14 Mar 2016
Location: Wirral
Posts: 128

gazman wrote:
I hope it's just they have done a job and not sealed one properly. It's then filled the motor with diesel and the oil level has gone up and it's started to run away by running on is own oil.

Caught quickly you shouldn't have damaged it.

That is what happened, an O ring had failed. I would not say they did a bad job it is just one of those things. I have used that garage for nearly 8 years. The landy is back now and running ok and they even steam clean the engine, that was a job I was going to do so saved me a job. And no charge for the rework. I get the impression that it is such a tight fit that O rings can get a bit damaged when putting injectors back in. It is probably why no one want to touch that job unless it was at fault which mine was, difficult to start when cold. Now it has new injector seals and new fuel pump as it was getting really noisy. marto

3rd Feb 2017 5:50pm

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

Oh heck bad luck, I have not heard of the seals failing to that extent before. I suppose the seal in question could have been twisted during the fitment to the injector preventing it from sealing to the head adequately. Either way bad luck and I am glad it is sorted now.

3rd Feb 2017 7:12pm

Justtellme

Member Since: 23 Nov 2015
Location: Ottawa
Posts: 310

Defender marto wrote:
gazman wrote:
I hope it's just they have done a job and not sealed one properly. It's then filled the motor with diesel and the oil level has gone up and it's started to run away by running on is own oil.

Caught quickly you shouldn't have damaged it.

That is what happened, an O ring had failed. I would not say they did a bad job it is just one of those things. I have used that garage for nearly 8 years. The landy is back now and running ok and they even steam clean the engine, that was a job I was going to do so saved me a job. And no charge for the rework. I get the impression that it is such a tight fit that O rings can get a bit damaged when putting injectors back in. It is probably why no one want to touch that job unless it was at fault which mine was, difficult to start when cold. Now it has new injector seals and new fuel pump as it was getting really noisy. marto

Very good news!
Glad it was not something catastrophic......
Patrick

3rd Feb 2017 11:20pm

gazman

Member Since: 17 Aug 2015
Location: Liverpool
Posts: 652

make sure they changed the oil as the diesel makes the oil very thin. On a plus point it works like a engine flush and inside your motor will be sparkling 2014 - current ..... 2003 defender td5 90 (my car)
2009 - current .... 2005 zx10r

3rd Feb 2017 11:33pm

ROBBONTHEROCK

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

2007 Defender 110 Puma 2.4 XS CSW Firenze Red

^^oh yes.

We used to add a 1/2ltr to 1 litre of diesel to the oil changes to clean up big diesel engines in construction plant.

It does a brilliant job.

Could they not put a thin smear of grease around the o-ring, or inside the hole. Not a dollop of grease, just a thin, thin smear. If nipping the o-ring was such a risk, why not?

What does the wsm say on this I wonder?

Cheers
Andy

4th Feb 2017 7:39am

Defender marto

Member Since: 14 Mar 2016
Location: Wirral
Posts: 128

Yep I got an oil change thrown in to. 👍🏻

4th Feb 2017 1:59pm

NickMc

Member Since: 01 Oct 2014
Location: Norn Iron
Posts: 1627

Always LIGHTLY lubricate O/rings. Always change the oil when you do the seals as it's impossible not to get diesel leaking.

20th Feb 2017 12:23am

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