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Gotta share this!!

Discussion in 'The Hokey Ass Message Board' started by Mike Britton, Mar 2, 2013.

  1. I know you guys think I'm the post ***** from hell, and yeah, you're right, but I have to share this with everyone.
    So I get my 47 all wired up right?
    Fire the engine, everything lights up and blinks like it should. But I got nothing at the voltmeter. Just sits there like a frog on a rock. I'm driving the thing shaking out different problems,"fettling" I think the Brits call it.
    In the meantime I'm charging externally with a battery tender every night. Done it with motorcycles for years.
    I go to the Decatur swap meet last week and I buy a nice Powermaster 100 amp alternator, more power than I'll ever need. I get the bracket and pulley from Speedway, it's all good. Just came in the mail last night, haven't installed it yet.
    So I go to breakfast with the sprint car team every Saturday morning. I drive the Ford. On the way home I'm watching the voltmeter sit there like a frog on a rock when it occurs to me that maybe the commutator is "cruddied" up.
    When I get home, while the engine is idling, I shoot some WD40 on the commutator.
    BAM!The voltmeter jumps to about 14 at idle, and almost 16 at half throttle! I'm feeling a little stupid that I didn't think of this first, but no problem, I'll still replace the generator with the alternator eventually. This gives me a chance to drive the thing and settle it out before I have to do that.
    Just goes to show you, it really could be something simple. :eek::eek:
     
  2. oldsjoe
    Joined: May 2, 2011
    Posts: 2,650

    oldsjoe
    Member

    It's usually something so simple we just can't believe it!
     
  3. WD 40 aka Electrician in a Can!:D
     
  4. Last resort...WD or a BFH
     
  5. The BFH would have come sometime at a later date!! I've used it to great success several times.
     
  6. tommy
    Joined: Mar 3, 2001
    Posts: 14,756

    tommy
    Member Emeritus

    Leave it alone:D If it ain't broke don't fix it. Right now your alternator is NOS and can be resold. install it and it's 20 dollar used piece. Did I tell you I'm partial to generators?:D
     
  7. Chemin
    Joined: Mar 4, 2009
    Posts: 325

    Chemin
    Member

  8. gas pumper
    Joined: Aug 13, 2007
    Posts: 2,960

    gas pumper
    Member

    So you probably really have sticky, hung brushes. The WD helped them slide in the holders. You need to free them up by either taking it apart or working them up and down in place if you can reach in there. Having oil(wd) on the comutator is not a good thing. Get them free and spray some brake cleaner on them. Oil will make the brushes glaze and have too much resistance.
     
  9. ^^^I like that! It should be glued inside the lid of everyone's tool box! ^^^^
     
  10. Gas pumper,
    I wondered about that. I'll go spray some brake cleaner on the commutator now that I have it charging. If I take the generator off to repair it, an alternator is going back in it's place. Thanks, Mike
     
  11. n847
    Joined: Apr 22, 2010
    Posts: 2,724

    n847
    Member

    Some times you just have to walk away and forget about it a little bit to get your brain reset!
     
  12. hoop98
    Joined: Jan 23, 2013
    Posts: 1,362

    hoop98
    Member
    from Texas

    It wouldn't have been a vacation if Dad wasn't under the hood messing with the Gen brushes :) Heck my mom could short a solenoid with a screwdriver while holding 2 babies. Never had to worry about the hood hinges rusting up, they got plenty of workouts on our cars.
     
  13. black 62
    Joined: Jul 12, 2012
    Posts: 1,895

    black 62
    Member
    from arkansas



    so true---he would end up screwing everything that was adjustable down tight then hit the road---you are so funny
     
  14. afaulk
    Joined: Jul 20, 2011
    Posts: 1,194

    afaulk
    Member

    Chuckles... "sittin there like a frog on a rock" that right there's funny.
     

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