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Rod Knock?

Discussion in 'General Tech and Maintenance' started by sleepn_accord, Mar 8, 2004.

  1. sleepn_accord

    sleepn_accord Senior Member

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    After I start the car it sounds fine...for about 30-45 seconds..

    after that a 'knock' is heard bewteen 1500-2000 rpm. Above 2000 rpm there is no noise.

    In the last few startups the knock has gotten progressively louder.

    I tired using a stethoscope to locate the noise..but it seemed to be coming from the valvetrain..

    however It seems loudest right behind the header. (could be echoing)..

    I drained the oil and filled new oil..which seemed to make the noise worse..

    I checked the oil and filter for metal particles (with a magnet) and it had none.


    Any suggestions?

    I'm ready to just order another h22 and swap it in already.. <_<
     
  2. EH3B18C

    EH3B18C Banned

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    when was the last time you clean your ear? that might be the problem.
     
  3. LudeIntentionz

    LudeIntentionz Junior Member

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    if u do order a new one what u gonna do wit the old one let me know i might be intrested :ph34r:
     
  4. Bl6CRX

    Bl6CRX Senior Member

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    haha don't yah noobs? but to post something with actual signifigance, try a valve adjustment, loose valves make a clicking noise and since you said it sounded like that was the area it was comming from...id bet thats, a much better alternative to replacing bearings also :)!
     
  5. Slammed90Lude

    Slammed90Lude Senior Member

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    that's what i was thinking too, but the valve taps that I have heard usually doesn't decrease as RPM's increase- Does the problem go away when the car is warm? or is it always there when the motor is under 2k RPM?
     
  6. sleepn_accord

    sleepn_accord Senior Member

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    EH3B18C - :newbie:

    Anyway, it's always there below 2,000 RPM.

    I would think that a rod knock would be noticeable above 2,000.

    But it seems to be getting worse each time I start the car.

    The noise rears its ugly head after the car starts to warm up. (As I mentioned above).


    The noise is defintily RPM related though. As I increase the RPM's the noise accelerates. But disappears after..well 2000 RPM.
     
  7. Bl6CRX

    Bl6CRX Senior Member

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    yeah im thinking that maybe the engine noise over 2,000 rpms is drowning it out...
     
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