Chris NottSky Insurance
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  1. #1
    Reverse Gear

    Join Date
    Aug 2006

    2.5 TDI V6 Diesel Injection Pump Timing Woes?

    My car has just been off the road for a few weeks, but I'm not out of the deep water yet, first of all, it wouldn't start for love or money.
    I took it to a VW/Audi 'specialist' garage who said there was no fuel coming to the filter. They replaced the in-tank pump and then gave up and said they suspected the injection pump and told me to take it to a diesel specialist.

    Next I took it to an expert but it was too expensive and their attitude sucked.

    So I took it home, whipped off the injection pump and sent to be remanufactured by dieselbob .

    It came back and I fitted it along with genuine Audi cambelt kit, v-belts, water-pump and thermostat.
    Everything was locked with a locking kit.

    Then I came to bleed the fuel lines and found that as with the first garage there was no fuel being pumped to the filter, despite hotwiring the pump. Then I read online that this is normal anyway
    Now, I pull diesel through with a vacuum, and bleed the injectors and it starts and runs like a dream.

    So I think I will do the dynamic timing later after a quick test drive.
    After 5 minutes, the engine cut out, and wouldn't restart.
    I called the RAC, by which time after 80 mins it would start, but would barely idle and would die.
    Pressing the throttle pedal had no effect.
    I scanned for codes and got ...

    I checked everything and it was all looking good.
    Could it be the dynamic timing out?
    Is there enough adjustment on slotted holes of the injection sprocket to cause non-start, or is it just fine tuning?
    I have read instructions of ELSA which say you can move undo the pump mounting bolts and move it, but IIRC it was not on slotted holes and even had sleeves.

    So do you guys have any tips or experience of this last stage?
    I can do the dynamic timing with vagcom, but a pre-requisite is a running engine at 80 deg C.

    Thanks for any help.

  2. # ADS
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  3. #2
    Reverse Gear

    Join Date
    May 2010
    Are you sure you don't have a leak on the return diesel hoses of the injectores?
    Or if the diesel pump has wrong mounting timing?
    I also had some problems on mine, and had to take the car to the diesel pump specialist so that he could redo the timing. Because m mechanic had mounted the pump wrongly.
    Sorry for my bad english.
    ;-) Big



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