Fusable link help.

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  • DiM
    Member
    • May 2012
    • 90

    #1

    Fusable link help.

    Been trying to trouble shoot why my car won't start. Came across a couple fusable link threads and I think that's gonna be the fix. One question I have is what fuse amperage do I need for the fuse holder to mimmick what the fusable link was putting out. REALOEM says 50A's but i just want some input from r3v thanks for any help guys.
  • spdracrm3
    E30 Modder
    • Sep 2009
    • 959

    #2
    if your referring to the fuse link in the main cable from battery in trunk ,50 amps is not enough as the starter will draw up to 1300 initially then drop to around 150A once motor is spinning , its probably a 500A slow blow fuse link
    Angus
    88 E30M3 X2
    89 325IX
    92 R100GS/PD
    :)

    Comment

    • DiM
      Member
      • May 2012
      • 90

      #3
      Originally posted by spdracrm3
      if your referring to the fuse link in the main cable from battery in trunk ,50 amps is not enough as the starter will draw up to 1300 initially then drop to around 150A once motor is spinning , its probably a 500A slow blow fuse link
      Yes I'm referring to the fuse link thats in the main cable leading from the battery to the DME.

      This is one of the threads where The fuse holder swap is shown as a fix to the no start issue.


      Then this realoem link shows the amperage of the fusable link (#14)
      http://www.realoem.com/bmw/showparts...61&fg=10&hl=53

      Comment

      • spdracrm3
        E30 Modder
        • Sep 2009
        • 959

        #4
        ah ok thats in a smaller feed not the main cable to the starter so yes 50A should be fine
        Angus
        88 E30M3 X2
        89 325IX
        92 R100GS/PD
        :)

        Comment

        • mitchlikesbikes
          E30 Modder
          • Dec 2013
          • 858

          #5
          yeah the power running through that fuse goes to the DME and other crucial components during startup. so there's not a massive pull like what a starter would generate. 50amp should be kosher

          1989 Coupe build thread: http://www.r3vlimited.com/board/showthread.php?t=312012
          IG: @mitchlikesbikes

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          • DiM
            Member
            • May 2012
            • 90

            #6
            Thank you guys. Just wanted to chime in with r3v because I know realoem can be a hit or miss sometimes.

            Comment

            • e30austin
              I waste 90% of my day here and all I got was this stupid title
              • Sep 2010
              • 15382

              #7
              Actually, it's 80a. I just did this last week.


              Comment

              • DiM
                Member
                • May 2012
                • 90

                #8
                Really? Alright thanks for the info

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