A little confused over battery issues....

Electrical & Ignition

  1. MoparLeo

    MoparLeo NRA BENEFACTOR LEVEL LIFE MEMBER FBBO Gold Member

    Messages:
    1,411
    Likes Received:
    1222
    Joined:
    Nov 24, 2015
    Location:
    Moreno Valley, So California
    Local Time:
    7:10 AM
    The ground should attach directly to the engine. The engine should also ground to the firewall. When the battery is in the original location, were does the ground wire connect ? Normally the heavy cable goes the the front of the head or intake manifold bolt with the smaller gauge wire connecting to the core support..Moving it to the rear makes the ground locations even more important.
     
    • Agree Agree x 1
    • padam

      padam Well-Known Member

      Messages:
      560
      Likes Received:
      587
      Joined:
      Aug 3, 2020
      Location:
      Canton, OH
      Local Time:
      10:10 AM
      If the battery is in the trunk, wouldn't it be better to use a short ground cable to the chassis, and also ground the engine to chassis?
       
      • Agree Agree x 1
      • 1toolguy

        1toolguy Well-Known Member

        Messages:
        246
        Likes Received:
        51
        Joined:
        Jul 1, 2010
        Location:
        Lakeland FL
        Local Time:
        10:10 AM
        I used the DEI heat wrap and it cured the problem immediately.
         
      • 66Satellite47

        66Satellite47 FBBO Gold Member FBBO Gold Member

        Messages:
        4,971
        Likes Received:
        4033
        Joined:
        Jan 15, 2015
        Location:
        St Paul MN
        Local Time:
        8:10 AM
        My cars have tied subframes welded into the floor pan, roll bars welded to various body parts. The ground strap from the fire wall to the engine block makes sure the ground is good to the starter. Make sure the positive wire from the trunk is big enough. I don't think #2 is big enough for a B body. My opinion.
         
      • 1toolguy

        1toolguy Well-Known Member

        Messages:
        246
        Likes Received:
        51
        Joined:
        Jul 1, 2010
        Location:
        Lakeland FL
        Local Time:
        10:10 AM
        I forgot to mention that my battery is in the trunk and I'm running #0 wire for the positive wire and the battery to chassis ground and #2 cable for the chassis to engine block.
         
      • Mocajava

        Mocajava FBBO Gold Member FBBO Gold Member

        Messages:
        959
        Likes Received:
        437
        Joined:
        Jun 2, 2015
        Location:
        Brighton Colorado
        Local Time:
        9:10 AM
        I am upgrading my battery BTW, Going to the biggest I can get and I may have misspoke about cable size to starter. The cable itself (copper wire) is about 3/8" in diameter plus the shielding and what was recommended by the research I did. I know I will be taking starter off when I do header on drivers side, the header cradles the starter and won't come out until I disengage starter and work it out around starter....PIA for sure. That is why I am going to wrap or sleeve starter while I am at it. Keep the comments coming gents, I am learning something from every one of your experiences! Mocajava
         
        • Like Like x 1
        • 66Satellite47

          66Satellite47 FBBO Gold Member FBBO Gold Member

          Messages:
          4,971
          Likes Received:
          4033
          Joined:
          Jan 15, 2015
          Location:
          St Paul MN
          Local Time:
          8:10 AM
          If wire is about 3/8" that sounds like #2, not sure. My Satellite came with #2 wire from the trunk. I knew that was not big enough. My positive wire going to the starter i about 1/2" wire diameter. I forget if this is #0 or 00. In the past I have used #00 welding cable to go from the trunk. That is big enough. Wrapping the starter may help. I'd still check the insides of the starter. Those solenoid contacts can act the way you describe.
           
        • ckessel

          ckessel Well-Known Member

          Messages:
          1,633
          Likes Received:
          1452
          Joined:
          Apr 23, 2015
          Location:
          Los Osos Ca.
          Local Time:
          7:10 AM
          Your cables are too small, especially the ground. And like others have pointed out, it needs to go directly to the engine/trans. You can branch out from there with chassis grounds and maybe one or two off the battery in the rear.
           
        • multimopes

          multimopes FBBO Gold Member FBBO Gold Member

          Messages:
          2,107
          Likes Received:
          2675
          Joined:
          May 6, 2015
          Location:
          Columbia ,NJ
          Local Time:
          10:10 AM
          Please post what you come up with for a battery. I am in the market for one myself. My Optima Red Top is now 9 years old and doesn't quite cut it anymore. I do, however, want a sealed battery and it has to fit in my trunk "Moroso" battery box.
           
        • Bluenoser

          Bluenoser Member

          Messages:
          7
          Likes Received:
          1
          Joined:
          Feb 19, 2018
          Location:
          B.C.
          Local Time:
          7:10 AM
          Great suggestions here one and all. Maybe ck. the voltage on both sides of the cutoff switch cold and then hot. Might be high resistance through the switch when hot after running for some time.
           
        • GTXDAN

          GTXDAN Active Member

          Messages:
          29
          Likes Received:
          39
          Joined:
          Jan 25, 2013
          Location:
          Georgia
          Local Time:
          10:10 AM
          Get yourself a starter from a 92-95 Dakota. It's a mini starter and will bolt right on and costs a lot less than a fancy high torque one. About $45 for a rebuilt one and around $80 for a new one from Rock Auto. Rebuilt one has a 1 year warranty and new one has 2 year. This is for a Delco starter. 0 or 00 cable should be used going to the starter and from the battery to ground. I'm also not a proponent of using a cut-off switch in the positive cable. Put it in the negative cable close to the battery so everything is dead when it is off.
           
        • Mocajava

          Mocajava FBBO Gold Member FBBO Gold Member

          Messages:
          959
          Likes Received:
          437
          Joined:
          Jun 2, 2015
          Location:
          Brighton Colorado
          Local Time:
          9:10 AM
          Just got the header insulation wrap and waiting for the starter blanket to come in. It will be a PIA to pull starter and headers to get this done but seems like the smart thing to do. Doing it all with car up on jack stands, on my back on garage garage floor. I REALLY miss my 4 post lift!
           
        • 68 Sport Satellite

          68 Sport Satellite Well-Known Member

          Messages:
          1,407
          Likes Received:
          474
          Joined:
          Feb 10, 2010
          Location:
          San Jose, CA
          Local Time:
          7:10 AM
          My journey with this same issue in my 68 b body with big block 451 includes swapping to the Dakota mini starter but the clearance between starter and block is so tight I can’t fit any heat wrap around or in between the starter. In the end the additional thing that solved it was upsizing my battery from a size 24 to the size 27 for big block/hemi. Now it spins fast even when hot. Before with the size 24 smaller battery and mini starter it often would not spin the engine fast enough when that starter was hot.
           
        1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
          By continuing to use this site, you are consenting to our use of cookies.