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Panhead generator Mod. 58 Vs. Mod. 61 differences?

  • 25 Sep 2009 6:28 PM
    Message # 222821
    Deleted user

    Hi Folks:

    What I though was a spare genarator for my '59 Harley turns out to be a Model 61 instead of a Model 58.  AND it would appear that it needs a very different armature oil seal (i.e. at the drive end of the armature, inside the bearing).  I've looked it up in Preston's catalogue and they just show the Mod. 58 oil seal (I have a few, by the way, in case anybody needs one). Does anyone have an illustration of the Model 61 type armature oil seal?

    I would also appreciate any discussion of the differences between these two six-volt generators that appear to be almost identical.  In my understanding, the 58 was used from 1958 - 60 and the 61 from 1961 to 65.  Any idea why Harley made the change and what the differences were .... and where I can the darned oil seal?

    Thanks!

    Brian

  • 29 Sep 2009 1:31 AM
    Reply # 223895 on 222821
    Deleted user
    Thanks for the suggestion Barry, I'll do that ... though I have faith in our CVMG experts too<G!>
  • 29 Sep 2009 6:09 PM
    Reply # 224303 on 222821
    Brian J. Given wrote:

    Hi Folks:

    What I though was a spare genarator for my '59 Harley turns out to be a Model 61 instead of a Model 58.  AND it would appear that it needs a very different armature oil seal (i.e. at the drive end of the armature, inside the bearing).  I've looked it up in Preston's catalogue and they just show the Mod. 58 oil seal (I have a few, by the way, in case anybody needs one). Does anyone have an illustration of the Model 61 type armature oil seal?

    I would also appreciate any discussion of the differences between these two six-volt generators that appear to be almost identical.  In my understanding, the 58 was used from 1958 - 60 and the 61 from 1961 to 65.  Any idea why Harley made the change and what the differences were .... and where I can the darned oil seal?

    Thanks!

    Brian


    Brian,

    You are probably looking for oem# 12002 Brush end oil seal 61-73 models. The drive end is 30145-46 , for 58 to 81 models.

    If all else fails contact Perry Ruiter  perry@ruiter.ca he will rebuild it for you.

    Doug Smith

     

  • 30 Sep 2009 12:08 PM
    Reply # 224662 on 222821
    Deleted user

    "The drive end is 30145-46 , for 58 to 81 models"

    Thanks Doug, but it is the armature drive-end oil seal I am looking for and the one in my Model 61 was quite different from the one that fits my Model 58. The Preston catalogue agrees with you that they should be the same 30145-46 for both.  Maybe my 61 was bodged but it sure looks original.

    Brian

  • 30 Sep 2009 4:52 PM
    Reply # 224778 on 222821
    Deleted user

    J&P Cycles in their vintage catalog on page 249 also list the drive gear oil seal as oem 30145-46A the same for all generators 1946 to 81 ($1.99).

    There was a different generator 58R built specially for bikes using the police two way radio. These were longer (some even had cooling fans) and maybe had different bearings and oil seals. I can't find any reference to different parts but none of the parts suppliers even mention these generators.

    You are correct for the years and models for the 58 and 61. They are both 2 brush, have the same internal wiring diagram, produce the same amps and use the same regulator 74510-47A or current and voltage regulator 74511-58A. Sounds like they would be interchangable but given all of the variables that HD used (13 versis 14 teeth on the drive gear gave different rpm's to generate more power for different applications) I would love to hear from the guys who really know.

  • 30 Sep 2009 6:42 PM
    Reply # 224829 on 224662
    Brian J. Given wrote:

    "The drive end is 30145-46 , for 58 to 81 models"

    Thanks Doug, but it is the armature drive-end oil seal I am looking for and the one in my Model 61 was quite different from the one that fits my Model 58. The Preston catalogue agrees with you that they should be the same 30145-46 for both.  Maybe my 61 was bodged but it sure looks original.

    Brian


    Best advice I can give is to email Perry. He is an expert generator rebuilder. He'll know what you have.

     

    Doug

  • 02 Oct 2009 10:21 AM
    Reply # 225674 on 222821

    There was a 31041-31 used during 1932-1945. maybe you have the early style generator. I have schematic in the Antique cycle supply catologue if you want it.

     

    Doug

     

  • 05 Oct 2009 11:14 AM
    Reply # 226600 on 222821

    Brian,

    I sent you a link to the Antique Cycle Supply catalogue. You can see the schematic online. I sent you two scans but they are not as good as the catalogue. Price list is there as well.

    Doug


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