Big oops........ Help.

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  • vvviivvv
    Fast Electric Addict!
    • May 2009
    • 1076
    #1

    Big oops........ Help.

    Hi guys, was finishing off my HPR build, dropped a clanger..

    Overtightened a 3mm hex and rounded it, turns out its a micron too deep (despite me measuring everything up with correct size washers / bolts)

    Anyway theres a point on the Lehner 'Hi-Amp' fan when I rotate the shaft it catches, Any suggestions on removing this? all I need to do is loosen it half a turn...
    Attached Files
    Hpr 06 / 09 / 150 /185, Mhz Skater H45 hydro.
    Uk SAW record holder
    Tags: None
    • StevenBryant
      Senior Member
      • Nov 2012
      • 359
      #2
      Big oops........ Help.

      Hi Liam

      I am sent you a link to some high tensile SS bolts to use on PM.

      To resolve you problem, use a Dremel to cut a slot and use a flat head screw drive to unscrew.


      Sent from my iPad using Tapatalk

        Comment

        • fweasel
          master of some
          • Jul 2016
          • 4279
          #3
          I agree, slot it with a dremel would be my first fix. Sometimes I've been able to get a bite using a larger standard sized allen or even a torx bit in a stripped cap screw.
          Vac-U-Tug Jr (13mph)

            Comment

            • vvviivvv
              Fast Electric Addict!
              • May 2009
              • 1076
              #4
              Dremel is my last resort, little bit scared of getting metal filings in the motor too..

              I've epoxied a Allen key in the bolt and will try in the morning..
              Hpr 06 / 09 / 150 /185, Mhz Skater H45 hydro.
              Uk SAW record holder

                Comment

                • Doby
                  KANADA RULES!
                  • Apr 2007
                  • 7280
                  #5
                  Epoxy might not be the best...try JB Weld if the epoxy fails.
                  Grand River Marine Modellers
                  https://www.facebook.com/search/top/...ne%20modellers

                    Comment

                    • NativePaul
                      Greased Weasel
                      • Feb 2008
                      • 2759
                      #6
                      Often you can hammer a Torx driver into the hex to get one out.
                      Paul Upton-Taylor, Greased Weasel Racing.

                        Comment

                        • vvviivvv
                          Fast Electric Addict!
                          • May 2009
                          • 1076
                          #7
                          It was super tight, no room to get anything at it... Anyway, got it out with a hammer and a punch, all it took was to release a tiny bit of tension and it came out.

                          Although I have now built it, went to setup my ESC and the speed controller decided to just smoke........
                          Hpr 06 / 09 / 150 /185, Mhz Skater H45 hydro.
                          Uk SAW record holder

                            Comment

                            • properchopper
                              [email protected]
                              • Apr 2007
                              • 6968
                              #8
                              Liam, (or anyone with a similar dilemma) -

                              Having "been there" many times over the years (building boats & motorcycles) I've used this solution - needle nose vice-grips snuck into place & squeezed waaay tight & after a few tries to get it lined up it works most of the time. Often helps to recite obscene proverbs while applying pressure.

                              wrench 20190429_122505 (1).jpg

                              I see you have that one solved as I was posting this. Enjoy your new ESC [Oh wait ]
                              2008 NAMBA P-Mono & P-Offshore Nat'l 2-Lap Record Holder; '15 P-Cat, P-Ltd Cat 2-Lap
                              2009/2010 NAMBA P-Sport Hydro Nat'l 2-Lap Record Holder, '13 SCSTA P-Ltd Cat High Points
                              '11 NAMBA [P-Ltd] : Mono, Offshore, OPC, Sport Hydro; '06 LSO, '12,'13,'14 P Ltd Cat /Mono

                                Comment

                                • enzo thecat
                                  Member
                                  • Jul 2013
                                  • 42
                                  #9
                                  I just hate when this happens. Often times, i swap out as much bolt/screw/nut hardware with American made synonymous hardware. It has helped A LOT.

                                    Comment

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