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Thread: Name that noise

  1. #1
    Guest adzn2k's Avatar
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    Name that noise

    I bought my s14 on Saturday got it home and now when the revs are low or when its just been started.

    Ive uploaded a vid what dya recon rebuild time?
    https://www.youtube.com/watch?v=Oq2W...e_gdata_player

  2. #2
    Guest Real Mark D's Avatar
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    vid not working for me

  3. #3
    Guest adzn2k's Avatar
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    Try again it was set to private lol

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    Guest m44t-xx's Avatar
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    Ermm have you pulled the intake off the front of the turbo? Sounds like metal on metal

  5. #5
    Guest adzn2k's Avatar
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    When it makes this noise you can feel it throughout the whole car. It doesnt change when the clutch is depressed and happens if its in gear or not. After a bit of a blip on the throttle the noise goes and the revs stay the same.

  6. #6
    Guest m44t-xx's Avatar
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    My point above would be my first point of call before looking deeper as it will take 5 mins to check the play in the turbo

    The IVC my be sticky causing the revs to hold

  7. #7
    Guest adzn2k's Avatar
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    Yeah I have a couple of hours spare tomorrow but I doubt its play in the turbo as you can feel it in the whole car and its sommin big lol

  8. #8
    Guest m44t-xx's Avatar
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    Was it running ok then all of a sudden started? Does it run smoothly throughout the rev range etc? Boosts all ok?

  9. #9
    Oor Willy sideways14a's Avatar
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    Viscos fan?

  10. #10
    Guest adzn2k's Avatar
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    Yeah started suddenly only happens when the revs ard low and the car drives and boosts fine. I'll check the viscose tomorrow

  11. #11
    Guest adzn2k's Avatar
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    Before I go out and inspect just thought I'd bump this for anymore suggestions.

    I'm trying to stay positive and not think its a bearing thats dying and not the engine needs a rebuild as I'm hoping the fact the engine aint knocking or banging and the running isnt effected when the noise happens.

    I'm hoping its a clutch/flywheel/gearbox issuse as when the noise happens you can feel it throughout the whole car and in the gearknob surely if it that a big end or main bearing in the engine and it was that bad to feel it throughout the car and gearbox would dramatically fail streight away and not go away after a short few seconds?!?

    Adrian.

  12. #12
    Guest hooky's Avatar
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    It sounds to me like one of the belt-driven ancillaries is seizing.

    You can hear one of the drive belts screeching like its struggling to turn something.

    Try taking the belts off and starting it again (only for a short period of course) and see if the noise goes.

    I'd check; water pump, viscous fan, steering pump, aircon pump and alternator.



    Edit; although it sounds hideous, i dont think it sounds engine-internal related.
    Last edited by hooky; 05-02-2013 at 08:58.

  13. #13
    Guest adzn2k's Avatar
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    My problem is if the car has been settled for a couple of hours the noise doesnt happen :/

  14. #14
    Guest adzn2k's Avatar
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    Right had a good look round it started up fine no noise so switched everything on ac lights heater and the alt belts squealed then the grinding noise happened had a look and can see the crank pully moving slightly back and fourth crank walk??

    I'm uploading a vid to youtube of it now the movement is only slight btw but enough

  15. #15
    Guest m44t-xx's Avatar
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    EDIT: read the past posting before writting.

    Alternator belt? When your putting it under load, when having everything turned on

  16. #16
    Guest adzn2k's Avatar
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    Look at the vid here:
    https://www.youtube.com/watch?v=IQgy...e_gdata_player
    The pully has a good wobble on it

  17. #17
    Guest mospin's Avatar
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    vid on private again.

    and in the first vid it sounds like the bearing has gone on the pulley. try spraying a bit off wd40 on the back off the pully and if it goes silent theres the problem
    Last edited by mospin; 05-02-2013 at 10:06.

  18. #18
    Guest adzn2k's Avatar
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    Try again

  19. #19
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    Crank pulley has maybe delammed

    Wouldn't keep doing it as its possably grinding up against your oil pump cover.

  20. #20
    Guest mospin's Avatar
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    looks like that botton pulley is going in and out to me ethier way its had it im affraid. i guess next thing is to take the pulley off and lay it on a flat surface to see if its the pulley or the crank .

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