Torque Cars

525td engine knock

Discussion in '5 Series' started by tully78, 5 September 2009.

  1. tully78

    tully78 Tuner

    Messages:
    63
    From:
    somerset
    Car:
    saab 900 coupe
    Morning ppl i've got a problem with a 525 td i've bought but its not the normal diesel knock. its coming from the top end. i've removed cam cover and span over the engine with a rachet all valves seem to be moving properly. would a blocked injector make the knocking sound? its more on start up when cold and tones down once warm. its intermitent after. when it does knock get plenty of black smoke out the back when boosting up. i've tried injector cleaner in the tank and has calmed down the smoke problem. its like the bat mobile...its the e34 shape on an l reg. i wanna get it sorted cos i wanna take my saab off the road for engine swap kit and alloys. any help would be greatly appreciated. cheers
     
  2. sr performance

    sr performance Torque Junkie

    Messages:
    130
    From:
    rhodesia, nottinghamshire
    Car:
    jaguar x type
    Hi mate , quite possible it is an injector, might be worth having them cleaned, you would have to take them to a diesel specialist so they ultrasonically clean them, after they have tested them first..


    www.sr-performance.co.uk
     
    obi_waynne likes this.
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