S80: Engine Gases escaping at valves

[Rooster]

I would get some new copper washers before trying to strip down,

This is quiet a common problem on peugeots/citreons etc with the same engine

[dingov70]

Good morning , i hope you read this before starting to sort your motor . You will require new nozzle washers & clamp bolts , as the bolts are torque to yield & single use only . I have seen a great deal of this type of problem especially on Mercedes Sprinters . It is not uncommon to end up reaming the injector bore & sealing face with a special stepped reamer to restore the flat faces required for a good seal . The blow by combustion gases can erode the cylinder head , BUT more often it is the injector that suffers damage & the reamer simply cuts away any carbon build up . I would also recommend using a long reach bottoming tap to clean the threaded hole the clamp bolt screws into , reason ? any dirt can affect how the bolt clamps the injector down . IF it cannot reach full depth , the injector does not seal fully & your problem will return . I would strongly suggest you coat the injector body with Febi 26712 Grease- Ceramic as it was designed for injector & glowplugs , nothing worse than trying to extract an seized in injector . Common rail diesels are not like older style engines , they are very very picky about corrrect injector nstallation . A fraction too loose & you get leaking gases , fraction too tight & the clamp bolt shears , maybe not straight away m but it wil fail .


Injector (clamping yoke)
1st Step: Torque to 4 Nm ( 3ft/Lb ) !
2nd Step: Angle Tighten/rotate 45°

very important you only tighten as the figures are very low

Good luck & just be methodical

[Fixer2004]

Ok feeling completely lost

Think I have got air in fuel

Turning over but won't start

Help

[Fixer2004]

Originally Posted by Fixer2004

Ok feeling completely lost

Think I have got air in fuel

Turning over but won't start

Help

Never got further than disconnecting one injector and then found can't go any further

Put it together and it turned over but no fuel

It seem like I'm getting no fuel pumped to engine

I'll pulled off the main pipe from the tank and nothing in it.

I've tried the basic refeuling if you run out of fuel that's in the hand book but still no fuel

Any ideas

It's cranking over

At a couple the loss

[Fakir]

Just a bunch of random ideas:

- There's a leak somewhere, preventing the pressure build-up in the common rail.

- The common rail pipe itself is empty, thus it needs a lot of cranking, before the HP pump fills it up and bleeds the air out of the system.

- The feed line from the fuel tank may have an air inside and it can take some time before the fuel gets to the HP pump. Not sure, if the PSA engine uses a feed pump inside the tank, or the HP pumps sucks the fuel directly.

[Fixer2004]

Originally Posted by Fakir

Just a bunch of random ideas:

- There's a leak somewhere, preventing the pressure build-up in the common rail.

- The common rail pipe itself is empty, thus it needs a lot of cranking, before the HP pump fills it up and bleeds the air out of the system.

- The feed line from the fuel tank may have an air inside and it can take some time before the fuel gets to the HP pump. Not sure, if the PSA engine uses a feed pump inside the tank, or the HP pumps sucks the fuel directly.

Got a major problem now
Had a mobile mechanic out and he's at a loss.
It's like I have no fuel starving the engine.
He scratched his head and left. Hoping to get some help tomorrow.
Think I'll stop touching things.

Wife thinks it's my immobiliser
Joined AA waiting 24 hrs for help
Been on this for 10hrs

Loosing will to live now
Got battery on charge now as just about ran dry

[Fixer2004]

Sorted, another£800
But running now😔

[olgasgimp]

really common problem on this engine if its the citroen 1.6d which i assume it is as half the car world use it, as stated the washer is the problem getting the injector out can be very tricky..