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DT125R FORUM

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  4. Temp gauge trouble shooting

Temp gauge trouble shooting

Scheduled Pinned Locked Moved Electrics
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  • tunertomT tunertom

    @jens-eskildsen sorry to be the one to tell you this, but for one, you have the fan blowing the radiator the wrong way, rendering it useless as soon as you start to move

    secondly, pc fans are useless in vehicle application, they offer literally nowhere near the amount of airflow that moving even at 5mph provides. typically a PC is generating 150w of heat or less, thats 0.15kw, whereas a bike such as this is making hundreds of times more heat.

    you need an automotive fan to make an ounce of difference

    CalumC Offline
    CalumC Offline
    Calum
    wrote on last edited by
    #93

    @tunertom You can pull air through the radiator no problems.

    Always Originate, Never Pirate!

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    • tunertomT tunertom

      @jens-eskildsen sorry to be the one to tell you this, but for one, you have the fan blowing the radiator the wrong way, rendering it useless as soon as you start to move

      secondly, pc fans are useless in vehicle application, they offer literally nowhere near the amount of airflow that moving even at 5mph provides. typically a PC is generating 150w of heat or less, thats 0.15kw, whereas a bike such as this is making hundreds of times more heat.

      you need an automotive fan to make an ounce of difference

      F Offline
      F Offline
      finnerz89
      wrote on last edited by
      #94

      @tunertom the fan on my triumph is behind the radiator, as is the one on my aprilia.

      Current bikes:
      DT125X '07
      Street Triple R '11
      Aprilia ETV1000 '02

      Previous:
      DR650RSE '96
      FJ1200 '92

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      • J Offline
        J Offline
        Jens Eskildsen
        wrote on last edited by
        #95

        Tom, I know, as I said, it was a test to see if it would fit.
        Its mounted on the right side tho, and its supposed to suck air, not blow it, so it pulls air through the radiator.

        declanD 1 Reply Last reply
        1
        • J Jens Eskildsen

          Tom, I know, as I said, it was a test to see if it would fit.
          Its mounted on the right side tho, and its supposed to suck air, not blow it, so it pulls air through the radiator.

          declanD Offline
          declanD Offline
          declan
          wrote on last edited by
          #96

          @jens-eskildsen yeah in my mechanics course we were told that some fans suck air through the radiator fins and others blow it through guess it doesent really matter

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          • J Offline
            J Offline
            Jens Eskildsen
            wrote on last edited by
            #97

            Fan is protected a bit by fitting it on the backside

            declanD 1 Reply Last reply
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            • J Jens Eskildsen

              Fan is protected a bit by fitting it on the backside

              declanD Offline
              declanD Offline
              declan
              wrote on last edited by
              #98

              @jens-eskildsen but it's harder to fit and gets in the way more and then you can't see it

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              • tunertomT Offline
                tunertomT Offline
                tunertom
                wrote on last edited by tunertom
                #99

                youve got the fan blowing towards the front of the bike... i didnt say it was in the wrong place i said its massively underpowered for application and its blowing the wrong way, its fighting the direction of the wind!

                as you can see..

                https://www.howtogeek.com/wp-content/uploads/2017/04/xopen-grille.png.pagespeed.gp+jp+jw+pj+ws+js+rj+rp+rw+ri+cp+md.ic.YEPgZw8Mwr.jpg

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                • J Offline
                  J Offline
                  Jens Eskildsen
                  wrote on last edited by
                  #100

                  And I answered "I know that", and described in detail that it was only a testfitting.
                  I got it for free, and now have the wiring sorted for a proper fan, and know what dimension will fit.
                  Lets move along, shall we?

                  tunertomT 1 Reply Last reply
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                  • J Jens Eskildsen

                    And I answered "I know that", and described in detail that it was only a testfitting.
                    I got it for free, and now have the wiring sorted for a proper fan, and know what dimension will fit.
                    Lets move along, shall we?

                    tunertomT Offline
                    tunertomT Offline
                    tunertom
                    wrote on last edited by
                    #101

                    @jens-eskildsen said in Temp gauge trouble shooting:

                    And I answered "I know that", and described in detail that it was only a testfitting.
                    I got it for free, and now have the wiring sorted for a proper fan, and know what dimension will fit.
                    Lets move along, shall we?

                    wouldnt a tape measure or an engineers rule, to measure the width of the radiator core not been sufficient to see what size of automotive fan you need, be better than bodging computer components onto it?

                    declanD 1 Reply Last reply
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                    • tunertomT tunertom

                      @jens-eskildsen said in Temp gauge trouble shooting:

                      And I answered "I know that", and described in detail that it was only a testfitting.
                      I got it for free, and now have the wiring sorted for a proper fan, and know what dimension will fit.
                      Lets move along, shall we?

                      wouldnt a tape measure or an engineers rule, to measure the width of the radiator core not been sufficient to see what size of automotive fan you need, be better than bodging computer components onto it?

                      declanD Offline
                      declanD Offline
                      declan
                      wrote on last edited by
                      #102

                      @tunertom not really since I have neither of those but now I know the dimensions I need just in case I come across one

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                      • J Offline
                        J Offline
                        Jens Eskildsen
                        wrote on last edited by
                        #103

                        Norwp, I needed to make sure that I could physically mount it to the radiator aswell.
                        But thanks for your concern 😂

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