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Helpful ReplyVlv60 Tecumseh Alternator Air Gap

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Hartwa
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2025/08/18 07:10:44 (permalink)
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Vlv60 Tecumseh Alternator Air Gap

Hey Guys...

I am trying to get this old Areins up and running again. It has an electric start that I would like to use. Before I order a new battery for it I tested the alternator on it while it was running and I get no voltage. I had the coil and alternator off and air gapped both with a business card. I can't find anywhere how to gap that alternator.

I can image that the alternator could be bad...there is not much to it.

Any thoughts?

Thanks.
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    SRTsFZ6
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    Re: Vlv60 Tecumseh Alternator Air Gap 2025/08/18 07:19:17 (permalink)
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    https://www.partstree.com/models/vlv60-502045c-tecumseh-engine/engine-parts-list-vlv40-0/
     
    I see the starter motor but don't see any charging parts(alternator, etc).  Can you advise
    what part #, from above, it is?  
     
    If your referring to the air gap on the coil, that does not charge the battery..
     
    Advise.
     
    BTW, some machines with electric start DON'T have a charging system.
    You have to charge the battery manually, occasionally.  You should be able to get MANY 
    STARTS on one charge..
     
     
    .

    Scott
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    Hartwa
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    Re: Vlv60 Tecumseh Alternator Air Gap 2025/08/18 10:47:00 (permalink)
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    Part 315 in the diagram
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    SRTsFZ6
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    Re: Vlv60 Tecumseh Alternator Air Gap 2025/08/18 10:59:37 (permalink)
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    Ok, I see it now (never saw one on that engine ever).  
     
    You should (and may have) be able to gap it to .010" using a business card
    (which I think you did) and moving it with the slotted holes in the unit.  
     
    With that done, no power coming out of it?
     
    .

    Scott
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    Hartwa
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    Re: Vlv60 Tecumseh Alternator Air Gap 2025/08/18 11:17:13 (permalink)
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    Yep...gapped with business card and when I start the engine and test the output there is 0volts.
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    SRTsFZ6
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    Re: Vlv60 Tecumseh Alternator Air Gap 2025/08/18 13:37:30 (permalink)
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    I don't know how to test it but it sounds like it's toast... 
     
    And that website shows it's not available..
     
    I'd put a battery in it, use it and just re-charge as needed. 
    The newer batteries (Not acid) are a bit smaller, just as strong and are less
    expensive than the lead acid ones... 
     
     
    Is this on a generator?
     
     
    .
     
     
    post edited by SRTsFZ6 - 2025/08/18 13:38:43

    Scott
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    Hartwa
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    Re: Vlv60 Tecumseh Alternator Air Gap 2025/08/18 15:18:51 (permalink)
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    No it's on a mower. The battery that is in it is a Panasonic 12v4vp. What kind of battery are you talking about?
    Quote  #7
    SRTsFZ6
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    Re: Vlv60 Tecumseh Alternator Air Gap 2025/08/18 15:30:37 (permalink)
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     Sealed lead-acid (SLA) absorbed glass mat (AGM) rechargeable battery
     
    I've bought two of these, one placed on a larger approx 12HP generator (I repaired and gave to my sister).
    The other I have as a spare for working on customers machines:
     
    Mighty Max YB9A-A 12V 9AH Battery Replacement for Xtreme High Performance XT9A-A 
     
    https://www.ebay.com/itm/384362323478 
     
    ***And pay attention to the battery terminals.
    Some have simple slip on terminals, others have regular "BOLT on" terminals  (1/4 20 ), like ^^^..  
     
     
    And I have no interest in the company or battery... Just personal experience. 
     
    .
     
     
    .
    post edited by SRTsFZ6 - 2025/08/18 15:37:39

    Scott
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    Hartwa
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    Re: Vlv60 Tecumseh Alternator Air Gap 2025/08/18 22:01:41 (permalink) ☄ Helpfulby SRTsFZ6 2025/08/19 07:04:53
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    Thanks for the link. I will need a battery.

    I do get some voltage out of the alternator but it is 7 dc or 17 ac when i change the mide on the multimeter. I did some reading...these alternators put out AC and then rectify it to dc with a diode. I follow the red lead and I do not see anything that looks like a diode. There is a white plastic fuse holder...the kind that holds an old glass fuse. I wonder if there was a tube like diode in there. Of course I cannot find a wire diagram or parts for this on line.
    Quote  #9
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