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Thread: Bleeding td42 after injector rail replacement

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  1. #17
    Legendary GQtdauto's Avatar
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    Must be the maverick thing not a lot of help for some reason , I've had a squiz around and found this for you but because of the fact it wasn't running right to begin with it might pay you to check the fuel lines from back to front for kinks or damage
    Check your fuel filter and O rings for it then bleed the filter .
    The below instructions were lifted from elsewhere I've just deleted the bits about the usual bleed for the filter and pumping because yours is different .
    This guy suggested bleeding the top of the pump first ( bleedscrew) but you've already done that so if your filter and filter seals are ok try it as below .





    If the engine cranks for a while (10 seconds or so) and doesn't sound like starting, give it a second go before moving on to bleeding the injectors. DO NOT bleed the line at the top of the injector pump again, move DIRECTLY to the large union nuts on the top of each injector! Loosen them all approximately two turns using two spanners, one holding the injector and one on the pipe union to avoid damaging the return lines or the injectors. Then have an assistant to crank the engine for 5-7 second intervals with a similar 'cool down' between each cranking session! Tighten each pipe as bubble free fuel begins to flow from the loosened injector unions. If the engine begins to run, just let it continue to idle as you tighten the remaining loose union nuts.

    If the union nuts on top of the injector do NOT leak, THEN you can try bleeding the injector pump at the inlet hose once more, making sure that you pump until bubble free fuel is bleeding from the nut before tightening it up again. If you do not get fuel from the injectors and then still do not get fuel from the injector pump inlet hose, there is a problem with either the injector pump itself, the fuel cut solenoid, or the mechanical system.

    If you have been running for a while on contaminated fuel, there is a possibility that the engine would previously run at above idle revs but not start easily or continue to run at idle. This can mean that the engine may start after prolonged cranking, but stop again as soon as the revs are let drop down to idle. This is as a result of the injector pump being damaged sufficiently that it will not pump sufficient fuel to keep the engine running at low revs, and it is this sort of problem that can result in the lack of fuel at the injector pump mentioned above, altho if you can spin it up fast enough, it will pump sufficient fuel at higher revs!

    Even tho you might find that you cannot get fuel from the pump as mentioned above, if you are in a remote area and you are aware that you may have been running on contaminated fuel, then it is worth an attempt at starting with prolonged cranking, or even a tow start. DO NOT do this or try this if you are within reasonable distance or time of a repair facility, it is only a 'last resort' attempt and it may well damage the pump beyond easy repair! However, if you can get it started you may be able to run the engine so that you can drive for some time/distance by keeping the revs at fast idle or above! Keep this in mind for that really bad day that hopefully will never occur for you!

    Good Luck!

  2. The Following 2 Users Say Thank You to GQtdauto For This Useful Post:

    mudski (27th July 2017), my93maverick (26th July 2017)

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