HDi fuel leak from hp pump - anybody had this?

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Doggy
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HDi fuel leak from hp pump - anybody had this?

Post by Doggy »

As title - I'm trying to track down a leak on my daughter's 807 2.2 HDi.

The 4HW engine in this looks the same as a 406's 4HX, but access is much more restricted. It had a leaky fuel filter housing, which I replaced last weekend and I'm 99% sure is now leak free, but there's a fresh looking diesel spill on the engine block in the area between the fuel filter and the back of the HP pump. Far as I can see, the pipework all looks dry as does the outside of the fuel filter.

Has anybody had a leaky HP pump and if so, was if it fixable without having the cam belt off?
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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steve_earwig
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Re: HDi fuel leak from hp pump - anybody had this?

Post by steve_earwig »

Writing quickly as the lights are flickering...

Didn't someone have a leak from the gadget the other end from the pulley once? The, what is it? Pressure regulator doo-dat?

Flicker flicker....
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steve_earwig
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Re: HDi fuel leak from hp pump - anybody had this?

Post by steve_earwig »

"Electro valve" apparently. ISTR something about the seals but I can't find it on a search (because I'm using the wrong terms as per :roll: )
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lozz
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Re: HDi fuel leak from hp pump - anybody had this?

Post by lozz »

This any use?

http://www.frenchcarforum.co.uk/forum/v ... hp?t=33662


v


v

edit, just found this, may be junk or use ful for the diagram's.? > http://www.christiantena.pwp.blueyonder ... epump.html
Last edited by lozz on Thu Oct 15, 2015 8:04 pm, edited 1 time in total.
GingerMagic
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Re: HDi fuel leak from hp pump - anybody had this?

Post by GingerMagic »

Not really had any issues with fuel leaks ( yet.. :roll: ) but the only things in the area that can leak are the seal around the pressure regulator, or the fuel lines on the fuel rail??
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benczuk
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Re: HDi fuel leak from hp pump - anybody had this?

Post by benczuk »

changed the pump on my old 2.0 without the cam belt. not attempted it on the 2.2
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Doggy
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Re: HDi fuel leak from hp pump - anybody had this?

Post by Doggy »

Well, it doesn't look like it's the pump after all.

Cleaned and dried everything in the area between the filter and HP pump, started it up and there's still fuel dribbling off the sump, but I can't for the life of me see where it's coming from. I'm thinking maybe it's a leak-off pipe.

On a 406 you could see it in seconds as pretty much everything is in plain sight once you take the acoustic cover off.

The 807's lump is buried under the bodywork, pretty much anything astern of the air dosers is completely invisible. :evil:
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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lozz
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Re: HDi fuel leak from hp pump - anybody had this?

Post by lozz »

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Doggy
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Re: HDi fuel leak from hp pump - anybody had this?

Post by Doggy »

Nice idea lozz, but I don't think you'd fit anything that BIG in there.

(If I do find a gap I may plug it using a putty-like substance with a detonator poking out of it).
2002 HDi 2.2 Exec Estate, (2008-12) (wonderful)
2003 HDi 2.2 6-speed Exec Estate (2012-19) (also a gem)
2009 Citroen C5 2.0 HDi VTR+ Estate (godawful heap)
2008 BMW E91 330i touring (great fun - murdered by a reversing SUV)
2007 BMW E91 325i touring (slower smoother quieter)
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