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Thread: Pics of a 300tdi fuel lift pump and it's replacement.

  1. 17th June 2007, 04:47 PM #1
    langy's Avatar
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    Pics of a 300tdi fuel lift pump and it's replacement.

    My lift pump decided to start to weep, so I went and replaced it - part ERR5057. Since there have been some discussions about this little item, I though some pics might be a good idea.

    These are the two, the original on the left and the Delphi replacement on the right. The nice people at Karcraft tell me the the original design isn't available anymore - so the Delphi setup is all you've got to play with. The Delphi part number is HFP502.




    just a word of warning: When replacing yours, be very careful tightening the unions and compressing the olives. I had the outlet pipe seperate from the casting and consequently leak from the housing, after tightening the compression joint. (Replaced under warranty no probs)

    This is the pump with the top section removed. An o-ring seals it, and you can see the removeable filter. The top section has a indent so it aligns on assembly.





    And, contrary to what it looks like, a standard 10mm socket and extension will do the job - that's why the injector pipes are shaped the way they are.

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  2. 18th June 2007, 09:41 AM #2
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    Just FYI, LR have 119 of ERR5057 in Melbourne.
    Scott
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  3. 18th June 2007, 04:01 PM #3
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    where did it weap from langy? I had the same problem with mine and soldered it no probs, around where the nipple thing comes out of the lift pump and the hose fits on to go to the filter housing. Once this was soldered i replaced the piece of fuel line with some more flexible rubber line because the old one is to short and when the motor is under load it puts to much pressure on the fitting on the lift pump so over time the metal stresses and leaks. No problems since, replacing the lift pump only fixes the problem it doesnt rectify the cause. Matt
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  4. 18th June 2007, 06:12 PM #4
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    Actually, I have a interesting idea about the fuel line - let me work on it.
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  5. 18th June 2007, 06:27 PM #5
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    Crikey I didn't recognise the pic looking down into the engine bay, yours must be brand spankers because mine is all oily & black down that side of the engine.
    Steve.
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  6. 18th June 2007, 06:41 PM #6
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    Quote Originally Posted by langy View Post
    Actually, I have a interesting idea about the fuel line - let me work on it.
    no worries, i am interested to hear what this idea is, keep me posted. matt
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  7. 18th June 2007, 08:21 PM #7
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    LR actually superceded the original fuel line to a longer version after having the pipe fracture problem on the pump.


    Oh, don't look now Langy but someone has wiped your VIN off the bonnet plate !!
    Scott
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  8. 18th June 2007, 08:31 PM #8
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    I had to replace the fuel pump on the Defender a couple of months ago.

    It developed a dribble from the pin sized hole in the bottom, which I think is there to let the diaphargm move up & down without creating negative pressure on the atmospheric side. I supposed the diaphragm had a hole or split in it.

    I put in one of the new ones langy showed, though I never got around to pulling the top off it - thanks for that pic langy . I was pleased to see that the replacement wasn't a sealed unit, at least there's a chance of field repairs with something that can be opened up.
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  9. 21st June 2007, 09:20 PM #9
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    I've done a couple of those Delphi lift pumps. I'd love to know that they're repairable, but I doubt that this is the case.

    I think Rick130 mentioned a repair kit for them ages back and I didn't follow it up.

    I went into the local truck place the other day, the parts fella knows everything. After a couple of calls he came up empty, might have been easier on him if I'd given him a part number, but usually he's that good.

    As he pointed out, that brassy fitting around the belly of the pump is fixed in place, and the only way at getting to the diaphragm - the part that blows its guts out.

    I'd reckon that you could cut off the collar, lever it off, and the hold it in place with something like a hose clamp, but I wouldn't trust it for very long.

    So, any great repair stories?

    Cheers
    Simon
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