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35 Amp or 40 Amp Alternator?

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  • #1

    35 Amp or 40 Amp Alternator?

    Other than tags (non-existent), is there a way to tell a 35 amp alternator from a 40 amp unit? There are two fans shown. Is there a difference in the number of fan blades?

    ---------------------------------------------------------------------------------------------------
    Tom - Valrico, FL

    1964 Studebaker Daytona - 289 4V, 4-Speed (Cost To Date: $1794.98)

    Tom - Bradenton, FL

    1964 Studebaker Daytona - 289 4V, 4-Speed (Cost To Date: $2514.10)
    1964 Studebaker Commander - 170 1V, 3-Speed w/OD
    Tags: None
  • #2
    quote:Originally posted by Swifster

    Other than tags (non-existent), is there a way to tell a 35 amp alternator from a 40 amp unit? There are two fans shown. Is there a difference in the number of fan blades?
    The 40-amp (Avanti) alternator is somewhat larger overall. I have at least one of each. I'll try to dig them out and take a picture.


    [img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/R-4.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64L.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64P.jpg[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/53K.jpg[/img=right]Paul Johnson
    '53 Commander Starliner (since 1966)
    '64 Daytona Wagonaire (original owner)
    '64 Daytona Convertible (2006)
    Museum R-4 engine
    Paul Johnson, Wild and Wonderful West Virginia.
    '64 Daytona Wagonaire, '64 Avanti R-1, Museum R-4 engine, '72 Gravely Model 430 with Onan engine

    Comment

    • #3
      quote:Originally posted by Swifster

      Other than tags (non-existent), is there a way to tell a 35 amp alternator from a 40 amp unit? There are two fans shown. Is there a difference in the number of fan blades?
      The 40-amp (Avanti) alternator is somewhat larger overall. I have at least one of each. I'll try to dig them out and take a picture.


      [img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/R-4.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64L.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64P.jpg[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/53K.jpg[/img=right]Paul Johnson
      '53 Commander Starliner (since 1966)
      '64 Daytona Wagonaire (original owner)
      '64 Daytona Convertible (2006)
      Museum R-4 engine
      Paul Johnson, Wild and Wonderful West Virginia.
      '64 Daytona Wagonaire, '64 Avanti R-1, Museum R-4 engine, '72 Gravely Model 430 with Onan engine

      Comment

      • #4
        Tom it is very easy to tell a 40 AMP, it has 2 adjusting arm bolt bosses and a different fan with a flat plate (shield) on it. On Avantis they are used with a 40 AMP regulator, on Jet Thrust a 35 AMP regulator is used.

        StudeRich
        Studebakers Northwest
        Ferndale, WA
        StudeRich
        Second Generation Stude Driver,
        Proud '54 Starliner Owner
        SDC Member Since 1967

        Comment

        • #5
          Tom it is very easy to tell a 40 AMP, it has 2 adjusting arm bolt bosses and a different fan with a flat plate (shield) on it. On Avantis they are used with a 40 AMP regulator, on Jet Thrust a 35 AMP regulator is used.

          StudeRich
          Studebakers Northwest
          Ferndale, WA
          StudeRich
          Second Generation Stude Driver,
          Proud '54 Starliner Owner
          SDC Member Since 1967

          Comment

          • #6
            OK, I don't have the shield. I figuired for a humble Cruiser that it was a 35 Amp, but the parts book also listed the 40 amp for the 6 cylinder cars in '63 & '64. Must be for taxi cab use or other servere use.

            ---------------------------------------------------------------------------------------------------
            Tom - Valrico, FL

            1964 Studebaker Daytona - 289 4V, 4-Speed (Cost To Date: $1794.98)

            Tom - Bradenton, FL

            1964 Studebaker Daytona - 289 4V, 4-Speed (Cost To Date: $2514.10)
            1964 Studebaker Commander - 170 1V, 3-Speed w/OD

            Comment

            • #7
              OK, I don't have the shield. I figuired for a humble Cruiser that it was a 35 Amp, but the parts book also listed the 40 amp for the 6 cylinder cars in '63 & '64. Must be for taxi cab use or other servere use.

              ---------------------------------------------------------------------------------------------------
              Tom - Valrico, FL

              1964 Studebaker Daytona - 289 4V, 4-Speed (Cost To Date: $1794.98)

              Tom - Bradenton, FL

              1964 Studebaker Daytona - 289 4V, 4-Speed (Cost To Date: $2514.10)
              1964 Studebaker Commander - 170 1V, 3-Speed w/OD

              Comment

              • #8
                Here are pictures of the 35 and 40-amp alternators. The 40-amp is on the right in each pix.






                [img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/R-4.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64L.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64P.jpg[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/53K.jpg[/img=right]Paul Johnson
                '53 Commander Starliner (since 1966)
                '64 Daytona Wagonaire (original owner)
                '64 Daytona Convertible (2006)
                Museum R-4 engine
                Paul Johnson, Wild and Wonderful West Virginia.
                '64 Daytona Wagonaire, '64 Avanti R-1, Museum R-4 engine, '72 Gravely Model 430 with Onan engine

                Comment

                • #9
                  Here are pictures of the 35 and 40-amp alternators. The 40-amp is on the right in each pix.






                  [img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/R-4.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64L.JPG[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/64P.jpg[/img=right][img=right]http://www.frontiernet.net/~thejohnsons/Forum%20signature%20pix/53K.jpg[/img=right]Paul Johnson
                  '53 Commander Starliner (since 1966)
                  '64 Daytona Wagonaire (original owner)
                  '64 Daytona Convertible (2006)
                  Museum R-4 engine
                  Paul Johnson, Wild and Wonderful West Virginia.
                  '64 Daytona Wagonaire, '64 Avanti R-1, Museum R-4 engine, '72 Gravely Model 430 with Onan engine

                  Comment

                  • #10
                    Definitely a big difference! Thanks Paul. I have a 35 amp unit, no question .

                    ---------------------------------------------------------------------------------------------------
                    Tom - Valrico, FL

                    1964 Studebaker Daytona - 289 4V, 4-Speed (Cost To Date: $1794.98)

                    Tom - Bradenton, FL

                    1964 Studebaker Daytona - 289 4V, 4-Speed (Cost To Date: $2514.10)
                    1964 Studebaker Commander - 170 1V, 3-Speed w/OD

                    Comment

                    • #11
                      Definitely a big difference! Thanks Paul. I have a 35 amp unit, no question .

                      ---------------------------------------------------------------------------------------------------
                      Tom - Valrico, FL

                      1964 Studebaker Daytona - 289 4V, 4-Speed (Cost To Date: $1794.98)

                      Tom - Bradenton, FL

                      1964 Studebaker Daytona - 289 4V, 4-Speed (Cost To Date: $2514.10)
                      1964 Studebaker Commander - 170 1V, 3-Speed w/OD

                      Comment

                      • #12
                        quote:Originally posted by Swifster

                        OK, I don't have the shield. I figuired for a humble Cruiser that it was a 35 Amp, but the parts book also listed the 40 amp for the 6 cylinder cars in '63 & '64. Must be for taxi cab use or other servere use.

                        ---------------------------------------------------------------------------------------------------
                        Tom - Valrico, FL

                        IIRC- The Zip Vans used a 40 amp. alternator on the OHV six cylinder.

                        Gary L.
                        Wappinger, NY

                        1959 DeLuxe pickup (restomod)
                        Gary L.
                        Wappinger, NY

                        SDC member since 1968
                        Studebaker enthusiast much longer

                        Comment

                        • #13
                          quote:Originally posted by Swifster

                          OK, I don't have the shield. I figuired for a humble Cruiser that it was a 35 Amp, but the parts book also listed the 40 amp for the 6 cylinder cars in '63 & '64. Must be for taxi cab use or other servere use.

                          ---------------------------------------------------------------------------------------------------
                          Tom - Valrico, FL

                          IIRC- The Zip Vans used a 40 amp. alternator on the OHV six cylinder.

                          Gary L.
                          Wappinger, NY

                          1959 DeLuxe pickup (restomod)
                          Gary L.
                          Wappinger, NY

                          SDC member since 1968
                          Studebaker enthusiast much longer

                          Comment

                          • #14
                            Hey Paul; am I seeing things here? It looks like your 40AMP Alt. has the ignition trigger socket connected with a White W/Red trace wire to ground under the radio static condensor! [?] Looks like instant short circuit and smoke to me! I hope that is someone's temporary connection or something!

                            StudeRich
                            Studebakers Northwest
                            Ferndale, WA
                            StudeRich
                            Second Generation Stude Driver,
                            Proud '54 Starliner Owner
                            SDC Member Since 1967

                            Comment

                            • #15
                              Hey Paul; am I seeing things here? It looks like your 40AMP Alt. has the ignition trigger socket connected with a White W/Red trace wire to ground under the radio static condensor! [?] Looks like instant short circuit and smoke to me! I hope that is someone's temporary connection or something!

                              StudeRich
                              Studebakers Northwest
                              Ferndale, WA
                              StudeRich
                              Second Generation Stude Driver,
                              Proud '54 Starliner Owner
                              SDC Member Since 1967

                              Comment

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