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Weird knock

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  • #31
    ah. any shimmery bits in the oil.

    another option if its only idle and pressures are good. if you lean on the clutch pedal does it go away on idle. if so could be thrust bearing or crank bearing related.


    • #32
      Hmm I'll see if that happens. Haven't tried that


      • #33
        wait a second guys.. did you ever see by your own eyes 2.2 20VT engine when rod bearing fail ? it is noise that you thing that engine will blow away.. and if that is a start of bad bearing in next 30km of driving this rod bearing will sound like on other video !
        I had a same problem with hidro lifter .. only when engine was warm !
        other thing what I noticed is that you use to liquid oil.. sorry but this hidro lifters are not disained for this kind of oil..
        just for test put 10w-40 in engine.. it is not expensive but it could give you an answer..

        other thing what we noticed before 10 years ago on audi 200 2.2 10vt with K-Jet is that lifters became noisy when AFR on engine became to lean or to rich on idle.. still dont know why but it was !
        take a look on spark plug .. try to change it..

        good luck !


        • #34
          Good points rs200.

          This noise was present with 10w60 castrol as well. No different now with 0w40

          I do plan to go for 10w40 anyway at the end.

          Spark plugs don't have more than 2000km on them. And lifters were our first thought as well. Mechanic says they are sound and new... what can I say...
          I have 1.00 lands on idle.

          Gary, noise doesn't go away when I depress the clutch pedal on idle so I think that rules out the clutch bearing.

          We will find out hopefully next week


          • #35
            id say its a good way toward ruling out crank bearings too as if crank is walking then it tends to change sound . on clutch

            have you listened and felt for noise. ive heard pas pumps produce engine like chatter