1963 Ballast Resistor Configuration - NCRS Discussion Boards

1963 Ballast Resistor Configuration

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Chuck G.
    Extremely Frequent Poster
    • May 31, 1982
    • 2029

    #31
    Re: 1963 Ballast Resistor Configuration

    Originally posted by Jack Humphrey (17100)
    If you assume that, you've walked away with what I believe to be the correct picture, amigo!
    Thanks, Jack.

    Originally posted by Ray Carney (36314)
    Chuck!
    |
    I had a June 63 SWC car and the resistor had the small tang like you would expect to find on a C-1. The ceramic was cracked and I had to replace it. I can not confirm that it was original to the car, but almost everything on this 63 was original.

    Ray
    Thanks, Ray. My 63 is even later.... a July, 63 car.

    Chuck
    1963 Corvette Conv. 327/360 NCRS Top Flight
    2006 Corvette Conv. Velocity Yellow NCRS Top Flight
    1956 Chevy Sedan. 350/4 Speed Hot Rod

    Comment

    • John S.
      Expired
      • July 29, 2009
      • 640

      #32
      Re: 1963 Ballast Resistor Configuration

      Originally posted by David Ahrens (32690)
      here is the ballast resistor
      off my '56 vette.
      i believe it to be original.
      BTW, what is the best way
      to clean the porcelain?
      iowa

      56 does not have the trough and should have a tab. if it has a C cutout in the band that will be three strikes!

      Comment

      • David A.
        Expired
        • July 31, 1999
        • 147

        #33
        Re: 1963 Ballast Resistor Configuration

        is this not the correct one then for my '56?
        iowa

        Comment

        • Jack H.
          Extremely Frequent Poster
          • April 1, 1990
          • 9906

          #34
          Re: 1963 Ballast Resistor Configuration

          That's what the man said...you've got a service replacement part. Why?

          (1) It has the late era ceramic (trough extends through the terminal areas all the way to the outside edges).

          (2) Mounting band is of '66-67 and later construction lacking the 'tear-away' tab in the center of the rounded edge.

          (3) Although not visible in your picture, the side of the band just above the mounting tab most likely HAS the strain relief, [-shaped, cutout.

          Basically, these are the issues that have been discussed in this thread... Plus, there's another that hasn't been mentioned.

          That's if you remove the terminal mounting screws and look down, I'll bet you see the metal insert has TWO opposing crimps that 'lock' it into position in the ceramic. Since early production ballasts lacked the full length trough configuration, they could only support inserts with a single crimp ear!

          That's a 'bummer'. Why? Well, if the crimped ear fatigue fractured, the insert was free to simply spin when you tried to fully torque the connecting wire's attaching screw. That could leave you with a 'loose' wire contact prone to oxidation build up or intermittent electrical contact...

          The only other use of the one vs. two eared insert that I know of is on today's current licensed reproduction ballast. I've questioned whether the guys at Shafer simply didn't read the drawing package they should have gotten with their repro license or if they just wanted to make an inferior part???

          But, the only ceramic tooling they have is the late era, full trench configuration. So, they should be using inserts with two opposing crimp tabs...

          Heck, maybe they've improved/changed the construction of their part. The one's I looked at were made, perhaps, 3-years ago...

          Comment

          • David A.
            Expired
            • July 31, 1999
            • 147

            #35
            Re: 1963 Ballast Resistor Configuration

            jack
            wow........
            i'm impressed by your knowledge of this resistor!!
            quite a dissertation on this topic

            i'm learning a lot

            my goal for my vette is not to do a 'concurs' restro
            but to freshen up my engine bay so that it doesn't
            look bad in comparsion to it's exterior

            but, i do want to get it as right as possible

            thanks for all your help

            dave

            Comment

            • Jon R.
              Expired
              • February 8, 2010
              • 163

              #36
              Re: 1963 Ballast Resistor Configuration

              Hello,

              Was there only one ballast resistor for '63? Some of the catalogs show two different repros - one for the 250/300HP and another for the higher HP options. The repro for the higher HP engines looks like the ones shown in this thread. The other for the lower HP (250/300HP like mine) looks like the one on my mostly original car (photos attached). Is the one on my car correct? Anyone else have one matching mine - other than the bent tabs?

              Thanks,

              Jon
              Attached Files

              Comment

              • Timothy B.
                Extremely Frequent Poster
                • April 30, 1983
                • 5177

                #37
                Re: 1963 Ballast Resistor Configuration

                Jon,

                If that's the resistor on your 63 car it's not correct. The correct bracket has the break away tab and shows stamping saying Delco Remy and the cut out is different. The pics in this post show what a 63 resistor should look like.

                I can take a picture of the resistor on my 63 and post later if you like.

                Comment

                • Jon R.
                  Expired
                  • February 8, 2010
                  • 163

                  #38
                  Re: 1963 Ballast Resistor Configuration

                  Timothy,

                  Thanks for the response. Would mine be a service replacement? Is the ballast resistor something that would have been replaced as part of a tune-up back in the '60's? My distributor cap and spark plug wires have been replaced. I wonder if the ballast resistor was replaced at the same time?

                  Yes, I would like to see a photo of yours.

                  Thanks,

                  Jon

                  Comment

                  • Timothy B.
                    Extremely Frequent Poster
                    • April 30, 1983
                    • 5177

                    #39
                    Re: 1963 Ballast Resistor Configuration

                    Jon,

                    It's a service replacement of some kind but it's not a GM part. I will get some pics of the ballast on my 63 .3 ohm plus the service replacement 1.8 ohm ballast with the blue identifing strip.

                    Comment

                    • Cecil L.
                      Very Frequent User
                      • May 31, 1980
                      • 449

                      #40
                      Re: 1963 Ballast Resistor Configuration

                      Technical Service Bulletin
                      DR#577 dated Feb. 27, 1963

                      Subj: Distributor Breaker Point Burning 1963 Corvette And 409 Engines

                      To eliminate Distributor point burning during cold-weather operation, a new higher value inginition primary resistor entered production on Feb. 4, 1963
                      for all 250 hp, or 300 hp Corvettes and 340 hp 409 Passengier cars.

                      If premature cold-weather point burning is encountered on the above models, built prior to the the production change, install resistor No. 1957154 (1.8 ohms)
                      in place of variable resistor No. 1931385 (approx. 0.3 ohms resistance when cold).

                      Resistor No. 1957154 may also be used on 340 hp or 360 hp Corvettes, 400 hp or 425 hp 409's and the Corvair Spyder for temporary winter operation; however, it should be pointed out to the owner that resistor No. 1931385 will provide the best possible high speed ignition performance.

                      Parts Data

                      Part No.
                      1957154 Ignition primary resistor - 1.8 ohms
                      (Service part identified by blue stripe)

                      1931385 Ignition primary resistor - 0.3 ohms
                      (service part identified by black dot)

                      Comment

                      Working...

                      Debug Information

                      Searching...Please wait.
                      An unexpected error was returned: 'Your submission could not be processed because you have logged in since the previous page was loaded.

                      Please push the back button and reload the previous window.'
                      An unexpected error was returned: 'Your submission could not be processed because the token has expired.

                      Please push the back button and reload the previous window.'
                      An internal error has occurred and the module cannot be displayed.
                      There are no results that meet this criteria.
                      Search Result for "|||"