Navara 2.5dci alternator noise





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  1. #1
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    Default Navara 2.5dci alternator noise

    Good day I have faint noise comeing from the alternator sounds almost like a waterpump on its way out. I went to the auto ellectritians today they say the bearing is starting to go. But what is strange to me all the places I went told me that the bearing eats up the shaft when it go's due to the safts being softer than the bearing. Now what I want to know is the bearing inside the one that eats the saft or the one on the over run pully as on my previos one the pulley destroid the saft in front where it screws on hope some one can help

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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by lion122 View Post
    Good day I have faint noise comeing from the alternator sounds almost like a waterpump on its way out. I went to the auto ellectritians today they say the bearing is starting to go. But what is strange to me all the places I went told me that the bearing eats up the shaft when it go's due to the safts being softer than the bearing. Now what I want to know is the bearing inside the one that eats the saft or the one on the over run pully as on my previos one the pulley destroid the saft in front where it screws on hope some one can help
    Over run pulley bearing. Mine made click noise(like needle bearing getting stick and pops out) Bought Pulley from either Diesel Electric or Master Parts -can't remember which one.
    R600 odd bucs.
    I had mine refittert around the corner from my place. Some have the allen screw on the centre shaft with a nut that loosens the pully, like mine(murphy) you need to remove the back cover of the alternator to clamp it to undo the nut for the pulley.
    remember to put the dust cover back on the pulley otherwise dust will settle in the bearing and destroy it.

    2012 Navara 2.5 Spain

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  4. #3
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    Default Re: Navara 2.5dci alternator noise

    I was wondering about this sound from mine. Does it sound like 2 thin pieces of metal touching each other at random moments? Sort of like a click-pop sound.

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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by El 4 Romeo View Post
    I was wondering about this sound from mine. Does it sound like 2 thin pieces of metal touching each other at random moments? Sort of like a click-pop sound.

    that is it.
    YT
    this one is really bad. Mine was like that way less

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  7. #5
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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by El 4 Romeo View Post
    I was wondering about this sound from mine. Does it sound like 2 thin pieces of metal touching each other at random moments? Sort of like a click-pop sound.
    Yes it does went threw water Desember and after that the sound started mine is so faint I realy have to listen to hear it. When you drive and the window is open one cant hear it but got some dust packing around the housing of the alternator where the shaft comes out. The guy said I can bring it in next week so will know more. I am suspecting the front alternator bearing is going also on mine

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  9. #6
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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by lion122 View Post
    Yes it does went threw water Desember and after that the sound started mine is so faint I realy have to listen to hear it. When you drive and the window is open one cant hear it but got some dust packing around the housing of the alternator where the shaft comes out. The guy said I can bring it in next week so will know more. I am suspecting the front alternator bearing is going also on mine
    myne ook maar naar geklink as jy met skroewe draaier luister teen die casing van alternator en oor. Ek ook vermoed all die bearings was gaar soos die over run pulley dit laat klink het.

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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by Dwayne P View Post
    myne ook maar naar geklink as jy met skroewe draaier luister teen die casing van alternator en oor. Ek ook vermoed all die bearings was gaar soos die over run pulley dit laat klink het.
    Ek het hom uit gehaal toe luister ek met n stetoscope nie die een soos die dokter sin maar het so dun lang uister klink aan die voor kant van die dop. Maar ja die pully sit ook daar as jy hom spin met die hand klink dit soos iets wat grind het nou gehoor klink soos daai click geluid maar nie so erg meer n sagte chirp geluid

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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by lion122 View Post
    Ek het hom uit gehaal toe luister ek met n stetoscope nie die een soos die dokter sin maar het so dun lang uister klink aan die voor kant van die dop. Maar ja die pully sit ook daar as jy hom spin met die hand klink dit soos iets wat grind het nou gehoor klink soos daai click geluid maar nie so erg meer n sagte chirp geluid
    begin stadium seker. Jy sal opmerk as jy die dust cap voor op pulley afhaal en hoe styf hy is en die hoeveelheid stof binne

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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by Dwayne P View Post
    begin stadium seker. Jy sal opmerk as jy die dust cap voor op pulley afhaal en hoe styf hy is en die hoeveelheid stof binne
    Nie so gecheck nie is dit die dust cap van die bearing seel of die een wat die saft se gat toe maak

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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by lion122 View Post
    Nie so gecheck nie is dit die dust cap van die bearing seel of die een wat die saft se gat toe maak
    Shaft se gat toe maak

  14. #11
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    Default Re: Navara 2.5dci alternator noise

    Daai een het ek af gehaad daar was nie regtig stof daar binne nie maak volgens daai video klink dit soos die vout. Aan die begin het dit geklink soos iets agter die engine maar neem aan die fan waai die geluid daai kant toe. Toe ek die belde af gehaal het toe is die geluid weg to spin ek die alternator en so goorg goorg geluid toe weet ek ek het die pes gekry

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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by lion122 View Post
    Daai een het ek af gehaad daar was nie regtig stof daar binne nie maak volgens daai video klink dit soos die vout. Aan die begin het dit geklink soos iets agter die engine maar neem aan die fan waai die geluid daai kant toe. Toe ek die belde af gehaal het toe is die geluid weg to spin ek die alternator en so goorg goorg geluid toe weet ek ek het die pes gekry

    as jy die pulley afhet luister weer na die alternator se bearings. Myne toe still geklink

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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by Dwayne P View Post
    as jy die pulley afhet luister weer na die alternator se bearings. Myne toe still geklink
    Baie dankie sal hom volgende week in vat dan kan ek so check as die die pulley af is hoop regtig dit is dit en nie daai binne bearing. Interesant die ou het n paar weke terug n nuwe een gekry vir n ander man hy se hy was so R2000 en iets oor weeg sommer om vir my n spaar te koop teen daai prys

  18. #14
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    Default Re: Navara 2.5dci alternator noise

    Thanks, all. Now I also know where to look.
    Last edited by El 4 Romeo; 2020/03/12 at 06:08 PM.

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    Default Re: Navara 2.5dci alternator noise

    Tools needed for the job:
    (1) Star and flat screwdrivers to remove plastic arch liner above left front wheel.
    (2) 10mm spanner to remove battery terminals and plastic engine cover.
    (3) 12mm socket to remove top bolt of alternator and terminal to alternator.
    (4) 14mm spanner to pull down belt tensioner so that belt can be removed. 14mm spanner can be used again to remove long bottom bolt of alternator (approach from wheel arch side). Alternator can now be removed from left wheel arch.
    (5) Impact wrench, 33-spline pulley socket and suitable socket to remove alternator pulley. Leather belt to wrap around pulley and provide resistance so it doesn't spin around.
    (6) Copper grease so the next person doesn't struggle to remove the pulley.

    Takes about 45 minutes in total to replace if working at a decent pace. Pulley cost R600 at Masterparts. Alternator pulley spanners cost R400 . Rental of impact wrench R150.

    Last edited by El 4 Romeo; 2020/03/16 at 07:11 PM.

  20. #16
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    Default Re: Navara 2.5dci alternator noise

    Pic of arch liner removed. Then pics of how to loosen alternator after taking belt off.

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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by El 4 Romeo View Post
    Pic of arch liner removed. Then pics of how to loosen alternator after taking belt off.
    I just cliped my aircleaner open moved it to the side and slided the alternator out took about 5 tot 10 min to remove te belt loosen the bolts and whires the one that was giveing crap was the regulator plug the clip was very hard to press with fat fingers.

  22. #18
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    Default Re: Navara 2.5dci alternator noise

    So the whole job was about 1hour from start to finsh had it to the auto electritien helped them do the job the rear needel bearing was so badly worn you can shake it they replaced it and the front one. This is an recon I bought 4 years back looks like the could not move the shaft back out of the bearing and took a hammer and hit it out wel the casing is damaged at the front where the bearing is but not bad wont give any problems they just fitted new brushes to the alternator not a new regulator. But needless to say she is now quiter than she was ever

  23. #19
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    Default Re: Navara 2.5dci alternator noise

    If you go in from the top, that long bolt with the 14mm head at the bottom could be difficult to crack. Taking the wheel off takes about 5 minutes, liner off in 2 minutes, and less wires to move around. I'm paranoid about parts dropping on paint, so I prefer going in through the bottom. But I definitely get the appeal of taking it from the top.
    Last edited by El 4 Romeo; 2020/03/17 at 03:06 PM.

  24. #20
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    Default Re: Navara 2.5dci alternator noise

    Quote Originally Posted by El 4 Romeo View Post
    If you go in from the top, that long bolt with the 14mm head at the bottom could be difficult to crack. Taking the wheel off takes about 5 minutes, liner off in 2 minutes, and less wires to move around. I'm paranoid about parts dropping on paint, so I prefer going in through the bottom. But I definitely get the appeal of taking it from the top.
    Haha soulds like you dont have an ARB on. That thing makes removing the arch liner a big pain. It did this job in the parking lot infront of the gym walked around the corner to take the alternator in

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