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Here we go again: Today I learned my alternator is broken..

Discussion in 'Electrics, Vacuum, Ignition and ECU' started by Conor, Feb 12, 2020.

  1. Conor

    Conor Senior Member

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    Hello people..!

    Today was somewhat lucky. I was setting out on a 30 mile round trip to pick up Bilt Hamber rust treatments... and then this happened.

    • About 2/3 miles from home, I get a never seen before, red light warning on centre screen showing a batter with +/- terminals in all red.
    • Shortly followed by all various lights coming up, loss of Comand, power steering etc.
    • Turn off car to refuel and engine slow to turn, but did finally start.
    • Believe it or not, I actually had a multimeter in the car. I can't remember the exact values when off and started but not good.
    • After some to/from with the breakdown people, I ended up being able to start the engine fine and everything seemed "normal", so I managed to get home.
    • Plugged in my trust iCarsoft scanner and get this code in the engine control module: Code "0365" "The output for the actuation of the alternator has a malfunction"
    • There were also a number of other codes relating to various control modules shutting down due to lack of power.

    So... My alternator is basically goosed. I saw a video from "LegiStreetCars" (Alex) on Youtube a while ago about replacing worn bushes, which doesn't look too bad..

    I think over the coming few days I will try and get the alternator out and inspect the bushes (and the spindle part) with a view to refurbing.

    Any ideas where is good to order these parts? Either the voltage regulator or just the bushes themselves, I am happy to cut out the old ones and solder in new ones.

    P.S. I had a mishap with the breakdown people. When they said it was going to take 1.5 Hours to reach me, I decided I would rather risk it and make it home myself.. when I called back to cancel they said if the guy has already left, then I will be liable to a charge of £92.50 for cancellation......outrageous.... the policy only cost me about £35. Ryanair springs to mind. The only person that will make me pay that will be a judge!

    IMG_20200212_155725.jpg IMG_20200212_155959.jpg
     
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  2. LostKiwi

    LostKiwi Senior Member

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    You should be able to get brushes from auto electricians or online. Get the alternator out and check the brushes first as it could equally be rectifier pack or regulator.
     
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  3. OP
    Conor

    Conor Senior Member

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    Ok good point. So I believe the regulator is the unit that fixes to the side of the alternator with a few screws, and it's that which holds the bushes.

    What is the rectifier part?
     
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  4. LostKiwi

    LostKiwi Senior Member

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    An alternator produces AC current which is no good for electronics or charging batteries. Internally within the alternator are a set of diodes that are collectively called a rectifier because they rectify AC to DC.
     
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  5. LostKiwi

    LostKiwi Senior Member

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    Automotive_alternator_diagram.jpg
    Cutaway view.
     
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  6. ianplymouth

    ianplymouth Senior Member

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    I had a problem last week, my Espace was in having some work doing, so i thought i would drive to Dawlish from Plymouth to collect some new Propellers from a company there.

    Got to within 5 miles if Dawlish and my a dash went red also with a alternator fault, i carried on collected the props and started home.

    Got to Ashburton and it started to miss fire, called into a garage there, we tried to jump start it to find out what was the problem, it would turn over but would not fire up, put a new battery in the rear and it still wouldn't start.

    Removed a plug and no spark, I had a look on youtube and it came up with the ignition coil fuse ! ! ! !
    Changed the fuse, it looked fine, apart from a hair line crack no burn marks very confusing.

    Replaced the fuse and it started, so measured the voltage at the engine battery and all i got was 12.9v, with the replacement battery i did manage to get home and that's where i has stayed since.

    When it stops raining i will have a good look at it :eek:
     
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  7. ianplymouth

    ianplymouth Senior Member

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    Well at least i should have my Megane up and running by the weekend :D
     
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  8. OP
    Conor

    Conor Senior Member

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    Thanks LK, very clear photo - thank you for taking the time to find.

    Hi Ian,

    Well at least now you'll be able to zoom around and get more done :p

    I'm confused by earlier post. When you say the Espace was in getting work...what car were you driving, that had the issues? The SL55?
     
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  9. OP
    Conor

    Conor Senior Member

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    So i've popped open WIS and doing some reading..

    • I have found that a full refurbish kit with bearings, brushes, slip ring etc about £20. Great!
    • I need to see if I will be able to get the alternator out without a lift. i.e. Will I be able to raise it high enough with jack/stands.
    I'll keep you posted. I will also certainly try and document fully to post a DIY guide (if one doesn't exist).
     
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  10. ianplymouth

    ianplymouth Senior Member

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    My Espace (work vehicle) was i for a rear stabiliser bar replacement as it snapped.

    I was driving the Merc, as i had only driven it a couple of times last year i thought it could do with a run :), was a nice day so had the roof down as well
     
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  11. Wighty

    Wighty Senior Member

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    It’s a good thing you have lots of other cars :D , that are currently working ?
     
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  12. DREAMER NO2

    DREAMER NO2 Senior Member

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    Conor pick one up from Ebay Fit that one in ,, and then recondition your original altermator .
     
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  13. LostKiwi

    LostKiwi Senior Member

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    Bearings and slip rings can be a bar steward to remove...
     
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  14. OP
    Conor

    Conor Senior Member

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    I guess that's not a bad idea but then I would have to shift my own one. I don't rely on the car and don't mind it sitting idle for a week or so while I brave the job. Good shout though, I honestly didn't think of that.

    Lol, "bar steward" first time I heard of that.. I saw that in a video actually. Your man had some puller tool. :/
     
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  15. ianplymouth

    ianplymouth Senior Member

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    Will have to check, but a guy i use for my alternators and starter motors, usually charges around £160 for a recon alternator.

    Just looked on his web site and only £150 :D:D
     
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  16. OP
    Conor

    Conor Senior Member

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    Thats still more expensive than the refurb kit.. and less fun too :)
     
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  17. OP
    Conor

    Conor Senior Member

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    ... Right. I have the alternator out.

    It's filthy with oil residue on the outside. Wondering what is best to clean it? I was hoping to clean it before opening it up... but probably safer to disassemble dirty then clean the constituent parts.

    I'm wrecked now but might have a look later.

    IMG_20200213_171742.jpg
     
    Last edited: Feb 13, 2020
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  18. LostKiwi

    LostKiwi Senior Member

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    WD40 works well and won't damage anything.
     
  19. OP
    Conor

    Conor Senior Member

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    Ahh good.. I was wondering that actually. Thanks.
     
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  20. DREAMER NO2

    DREAMER NO2 Senior Member

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    Or pop it in the dish washer if it shot,, it wont hurt it ha ha No its a job for a brush and a little white spirits .But to re con the alternator your self would be possible but the slip rings are hard to replace and also the bearing will need pressing in . I did have some parts to do my starter motor form an ebay seller, if you need parts i can find his listing for you.He had parts for all alternators and starter motors.
     
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