Results 1 to 8 of 8

Thread: Leece-Neville 100 Amp Generator rebuild

  1. #1
    Sergeant WWIILBird's Avatar
    Join Date
    Jun 2009
    Location
    Northern NJ
    Posts
    80
    Thanks
    32
    Thanked 25 Times in 15 Posts

    Default Leece-Neville 100 Amp Generator rebuild

    My gauge in my 1980 M35a2C kept going from center of the green when idling down to yellow as soon as I started driving and continued toward boarder line yellow/Red. When I shut down the engine and restart it after a while I'm back in the green until I start driving again. It was suggested that I have it bench tested so I dropped it off. Fellow wants $400 to rebuild it telling me something in the back of the generator is shot from spinning and rubbing or something like that and he has to machine new parts so the cost is mostly labor. This generator has a fat cable that screws on. Every TM document I've read and internet searches I've done (including SS) seem to talk more about 60 amp and 25 amps or conversion kits for 25 amp to 60 amp conversions. Nothing I've seen addresses this 100 amp generator. So I have a couple of questons, does anyone know the history of why they went with this model as I can't find much info on it, is it an anomoly and can you swap it for a different model that will fit the bracket with screw on? and is $400 too much to pay for a rebuild? I really haven't seen any rebuilts for sale and checked Kublos he doesn't have any . Thanks Nick

  2. #2
    dumpsterlandingfromorbit! gimpyrobb's Avatar
    Join Date
    Dec 2005
    Location
    Cincy Ohio
    Posts
    27,558
    Thanks
    2,433
    Thanked 8,796 Times in 4,587 Posts

    Default

    If you want to stay stock, you might have to bite the bullet. I got a single wire 100amp alt for about $225 new for my 725 a couple years ago.

  3. #3
    4 Star General Stalwart's Avatar
    Join Date
    Aug 2007
    Location
    Redmond, WA
    Posts
    1,739
    Thanks
    44
    Thanked 412 Times in 242 Posts

    Default

    Usually the problem you describe is from having belts that are too loose. As the belt speed increases the belt climbs higher on the pulley due to the increased acceleration required to curve around the pulley. I have seen alternators act normally at idle and actually STOP spinning entirely when the engine speed increases.
    Stuart

    M977A2 HEMTT W/Crane and M989A1 HEMAT trailer
    Alvis Scorpion CVRT
    Fox CVRW
    Daimler Ferret 2/3
    Daimler Dingo
    V100 Commando
    Stalwart FV622
    '93 Civilian Hummer, 4 door hard top, with factory 383 CARC green paint

  4. #4
    Sergeant WWIILBird's Avatar
    Join Date
    Jun 2009
    Location
    Northern NJ
    Posts
    80
    Thanks
    32
    Thanked 25 Times in 15 Posts

    Default

    I had a fellow who works on trucks check my belts and he said they had the right tension. I put new belts on in the spring when I pulled my radiator. Interestingly, I slaved a generator last week and each time I hit the starter switch on the MEP16A a high pitched squeel came out of the engine compartment. I had the truck idling at about 1000 RPM.

  5. #5
    Moderator
    Join Date
    Nov 2004
    Location
    Mid Hudson Valley NY
    Posts
    6,974
    Thanks
    77
    Thanked 936 Times in 506 Posts

    Default

    ASSUMING the genny bracket is stock to the truck when it rolled off the assembly line, the 60 amp genny will bolt right to it. I have never seen a decue with anything but a 25 or 60 amp genny, but in the military things happen to get trucks fixed. The 100 ampers will fit where the 60's are and vice versa. 100 amp genny in a deuce is very unusual, the 60 is fine. I have seen 60 and 100 amp gennys sell at shows for $100-200. $400 is nuts, you can find them cheaper than that..

  6. #6
    4 Star General Stalwart's Avatar
    Join Date
    Aug 2007
    Location
    Redmond, WA
    Posts
    1,739
    Thanks
    44
    Thanked 412 Times in 242 Posts

    Default

    Quote Originally Posted by WWIILBird View Post
    Interestingly, I slaved a generator last week and each time I hit the starter switch on the MEP16A a high pitched squeel came out of the engine compartment. I had the truck idling at about 1000 RPM.
    If that happens your belts ARE NOT at the correct tension OR your pulleys are glazed smooth and don't provide enough traction for the belt. You should use a belt tensioner or re-calibrate your friend, it should not be squeaking the belt with a heavy load, especially as low as 1000 rpm.
    Stuart

    M977A2 HEMTT W/Crane and M989A1 HEMAT trailer
    Alvis Scorpion CVRT
    Fox CVRW
    Daimler Ferret 2/3
    Daimler Dingo
    V100 Commando
    Stalwart FV622
    '93 Civilian Hummer, 4 door hard top, with factory 383 CARC green paint

  7. #7
    4 Star General
    Join Date
    Sep 2008
    Location
    San Jose, Ca
    Posts
    1,284
    Thanks
    90
    Thanked 650 Times in 394 Posts

    Default

    Check this site and see if they can't help you out:

    http://www.southernautomotive.com/

  8. The Following 2 Users Say Thank You to papakb For This Useful Post:

    Blitz (11-08-2013), WWIILBird (12-12-2011)

  9. #8
    Private
    Join Date
    Aug 2019
    Location
    Huntington Beach
    Posts
    3
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Default Problem with my m998 Humvee charging starts in the green with the dash after a few mi

    Have you figured out my charging quite yet talked to a couple guys they said that the brushes inside are going bad that's why I beginning it starts to charge when it heats up they get loose and goes down to about 23 Waltz it first starts up I'm at about 27.9. Belts that feel real tight but they do slap quite a bit any suggestions

Similar Threads

  1. Need help identifying a 24volt 100 amp generator
    By GIJoeCzar in forum 5-ton and up
    Replies: 2
    Last Post: 07-23-2011, 18:28
  2. 100 amp pulley needed
    By citizensoldier in forum M37
    Replies: 1
    Last Post: 12-31-2008, 17:12
  3. 100 amp generator
    By junkyardog in forum 5-ton and up
    Replies: 2
    Last Post: 07-27-2008, 11:13
  4. Leece Neville Alternators
    By thebird00 in forum CUCV
    Replies: 12
    Last Post: 07-24-2008, 17:47

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •