Best way to enlarge Lehner motor connector?

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  • wolf IV
    Senior Member
    • May 2008
    • 961

    #16
    [QUOTE=nosybody;153386]I've read from some forum that suggested using solder with silver instead of your typical 60/40 tin lead electrical solder. Silver also has a much higher melting temperature then tin/lead. You will need a super big hot iron to melt that sucka into the lug and that thick heat sucking copper wires along with some flux to make it flow right. I think your problem is due to your iron not hot enough for the solder to really covers all the inside between the copper and the lugs. I've done much soldering with electronics circuit boards and electronics components and notice that thicker copper wires tense to draw the heat away from where you wanted to solder, this is due to the thermal conductance of copper. This will result with a "cold soldering joint", a term electronic people calls it and will results with increase electrical resistance.

    For the price of a Lehner, I could have gotten 2 Neu instead. Do you suppose Lehner are over rated for their high prices? Then that would be true with Plettenberg too.

    I had trouble communicating with those folks at Lehner by email, probably because english is not their first language. I notice when I ask more then one questions per email, they only answer one of my question and not the rest. I realizes that I have to keep my question short and simple because their reply are also short and simple.

    Here are their plugs > http://www.lehner-motoren.com/preise.php

    You can also get them from > http://www.finedesignrc.com/motoraccessories.asp

    BK Motor/ESC Plugs.
    They 5.5 mm and can handle 200 amps! These are as good as it gets. Made specifically for hi amp applications!
    $5.50 a Pair
    (1 male, 1 female)I USE 94- 96 PERCENT SILVER ( NO LEAD, OR ROSIN CORE)AND A 100 AMP IRON. THE TWO WORK REALLY WELL TOGETHER! 5.5 MM? I USE QUITE A BIT OF AND EVEN USE 8MM ON MY MARITIMO PACKS AND ESC'S...GOT TO SUPPORT YOUR COUNTRY WHEN PRODUCING EXCELLENT PRODUCTS LIKE NEU! YOU PAY FOR THE AMERICAN QUALITY AND CUSTOMER SERVICE, AND I THINK THEY PACK A WAY BIGGER PUNCH!!!
    http://www.youtube.com/watch?v=e-npTLBHefY

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    • nosybody
      Junior Member
      • Dec 2009
      • 17

      #17
      Originally posted by wolf IV
      I USE 94-96 PERCENT SILVER ( NO LEAD, OR ROSIN CORE) AND A 100 AMP IRON. THE TWO WORK REALLY WELL TOGETHER! 5.5 MM? I USE QUITE A BIT OF AND EVEN USE 8MM ON MY MARITIMO PACKS AND ESC'S...GOT TO SUPPORT YOUR COUNTRY WHEN PRODUCING EXCELLENT PRODUCTS LIKE NEU! YOU PAY FOR THE AMERICAN QUALITY AND CUSTOMER SERVICE, AND I THINK THEY PACK A WAY BIGGER PUNCH!!!



      I'm really glad to hear that!!! Cheers!

      Did you have to go out and buy that 100 amp iron recently? I never heard of 100 amp iron before? I'm waiting for my plugs from FineDesign (hope it will arrive ) and will also need to buy a hot iron or just buy a hot iron tip attachment for my blow torch that can get the same results.

      You're right about supporting my country here in the good old USofA!

      Oops wrong flag but close enough.

      Here you go!

      After you run your boat a few time, please take notice and keep us all posted here if there is any excess heat too hot to the touch? Thanks!
      Last edited by nosybody; 01-22-2010, 10:53 PM.

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