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Thread: Squeky bearings in 3.9 Alternator

  1. 26th March 2009, 07:56 PM #1
    Sally+3.9 Suzi Guest

    Squeky bearings in 3.9 Alternator

    Hey guy's how good are 3.9 Isuzu's there's no comparsion!!

    I've had a squeking noise coming out of my alternator the last few months it's a nippondenso, don't won't to replace the whole thing because it still gives charge fine, was wondering if anyone has every had the same problem and installed a new bearing???
    I've heard on the grapevine it's possible??

    Any info would be apperciated
    Thanx Nick
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  2. 26th March 2009, 10:06 PM #2
    rijidij's Avatar
    rijidij
    rijidij is offline ChatterBox Subscriber
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    G'day Nick, welcome to the forum,
    I haven't worked on the alternators myself, but I think replacing a bearing would be a pretty straight forward job for any auto electrician. If the rest of it is still good, it might not cost too much to get done.
    Someone else might be able to comment wether it's a job straight forward enough to tackle yourself.

    Cheers, Murray
    '88 County Isuzu 4Bd1 Turbo Intercooled, '96 Defender 130 CC VNT
    '85 Isuzu 120 Trayback, '72 SIIA SWB Diesel Soft Top
    '56 SI Ute Cab

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  3. 27th March 2009, 06:09 AM #3
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    justinc
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    Hi Nick and welcome. As Murray says, an auto elec may be a better prospect as when it comes time to replace a bearin, generally brushes and other iems need a look at too. That said, if you are careful and can solder well, then maybe DIY is a good way to learn about alternators. If a problem appears the worst it can do is stop charging the battery.

    JC
    The Isuzu 110. Solid and as dependable as a rock, coming soon with auto box😊
    The Range Rover L322 4.4.TTDV8 ....probably won't bother with the remap..😈
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  4. 27th March 2009, 07:00 AM #4
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    JDNSW
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    The alternator itself would present no difficulties for someone reasonably careful, but this alternator includes a vacuum pump, which may present more problems, including for the run of the mill auto electrician.

    New alternator bearings are easy to fit, but if the noise is from the vacuum pump, it may not be as simple.

    John
    John

    JDNSW
    1986 110 County 3.9 diesel
    1970 2a 109 2.25 petrol
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