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Thread: High pitched belt type squeal fixed on ZD30

  1. #21
    Patrol God threedogs's Avatar
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    Hey 200 post up an intro and ask your question in a fresh thread
    The intro is a courtesy thing that the forum asks of us all.

    I would say your belt tensioner bearing is on the way out or your
    clutch bearing on the alternator.
    Check with a long screwdriver to your ear to isolate the sound.
    Make and model would also help
    04 ST 3lt auto, not enough Mods to keep me happy, but getting there

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    Thanks Mate

    Didnt realised I had not posted a intro - Will do

  4. The Following User Says Thank You to 200 For This Useful Post:

    threedogs (11th August 2014)

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    Could you please advise where the EGR Pipe is? Where can it be found?

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    The 747 Winnie's Avatar
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    Could be a boost leak too

  7. #25
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    I got lumbered with a Navara 2 weeks ago with a zd30 engine, the guy told me the noise at the front of the engine was just the belt squealing and handed me a new belt. after replacing the belt and the tensioner pulley the noise stopped for about 30 minutes then started again. If I spray anything on the belt the noise stops or is reduced to almost stopped, It is embarrassing to drive, the squealing is so loud, if I'm lucky after the engine has warmed up the noise is almost gone when the engine is idling. I have an alternator here given to me when I bought a converted zd30 about 2 years ago, so am going to try swapping alternators around to see if that make a difference as the alternator on the car is a higher amp one with a clutch and the other one is a stock alternator with a solid pulley. Any advise or suggestions would be greatly appreciated as I started hating the car after owning it for an hour.... Please help, all ideas etc will be tried to stop the squealing...

  8. #26
    The master farter
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    What brand belt and tensioner mate?

    Sent from my GT-N7105T using Tapatalk

  9. #27
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    Quote Originally Posted by Sir Roofy View Post
    You might have a leaking manifold gasket it sounds the same
    under acceleration
    be interesting what you find
    Some research for a mate his zd is making a bearing like squeal noise.
    His mechanic was pointing to turbo but listening to it-----
    leaning over the top of mtr the noise seems to be coming from top front of motor to me,
    around above viscus fan coupling area & closer to manifold
    I ? his fan belt etc he informed me makes" same sound without belt so the mech said", so rules out tensioner etc.
    ??Is the manifold gasket multi shim??.
    I ask that as the squeal sounds bit like (best I can describe )a wind instrument reed humming to me.
    Thanks any help much appreciated.
    IF IT'S NOT A NISSAN.
    THEN IT'S A COMPROMISE

  10. #28
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    Quote Originally Posted by Robo View Post
    Some research for a mate his zd is making a bearing like squeal noise.
    His mechanic was pointing to turbo but listening to it-----
    leaning over the top of mtr the noise seems to be coming from top front of motor to me,
    around above viscus fan coupling area & closer to manifold
    I ? his fan belt etc he informed me makes" same sound without belt so the mech said", so rules out tensioner etc.
    ??Is the manifold gasket multi shim??.
    I ask that as the squeal sounds bit like (best I can describe )a wind instrument reed humming to me.
    Thanks any help much appreciated.
    Had a look tonight using inspection mirror up under No1 exh & can see what looks like soot around this area so think It's sorted.
    IF IT'S NOT A NISSAN.
    THEN IT'S A COMPROMISE

  11. #29
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    Thanks for the info mate will look into mine

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    Thank you for this, I have this problem with my GU. I am going to try it out this weekend.

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