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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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  • DartyD Offline
    DartyD Offline
    Darty
    wrote on last edited by
    #76

    @Calum

    Have to say though, heat transfer is interesting in wankel designs.

    But, If your worried about cylinder head localised boiling in a modern 2stroke!?

    then you have completely missed the point also.

    You could run a 4stroke for longer on alcohol based coolant, sure.

    What benefit to a 2stroke engine at least, does Evans coolant possibly have to performance?

    Its a negative in almost all aspects of operating temperature.

    Keep it real

    1 Reply Last reply
    0
    • J Jens Eskildsen

      If coolant is boiling, something is off. youre not curing anything by changing the coolant to something that isnt boiling at that temp, but is actually running hotter. Thats treating symptons, not fixing whats wrong.

      I kinda like this one 😄 https://www.youtube.com/watch?v=VACKWvcXbXA

      CalumC Offline
      CalumC Offline
      Calum
      wrote on last edited by
      #77

      @jens-eskildsen In peak summer times, my DT recorded a temperature of around 110 degrees using my vapor unit whilst sat in traffic.

      The water did not boil, but no doubt there was a lot of pressure on the cooling system itself. This was prior to using evans.

      Ultimately that was when my bike was a commuter. It isn't any more and I doubt I'll be sat in traffic for long periods of time.

      Where I will be ripping up the B roads the coolant will have plenty of time to regulate.

      In this instance, evans coolant requires no maintenance. There is no corrosion to worry about and it doesn't require anti-freeze.

      Therefore it offers minimal maintenance when compared to normal coolant.

      For this reason, I will continue to be using it on my project bikes as they will no doubt be left in storage.

      Always Originate, Never Pirate!

      1 Reply Last reply
      1
      • J Offline
        J Offline
        Jens Eskildsen
        wrote on last edited by
        #78

        Id rather fix the problem and install a fan

        CalumC 1 Reply Last reply
        0
        • J Jens Eskildsen

          Id rather fix the problem and install a fan

          CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by
          #79

          @jens-eskildsen I agree, if there is a problem, evans coolant isn't solving the issue, it's masking it.

          I didn't have a problem, and I didn't mean to suggest using evans was an adequate solution to an overheating issue, as it is not.

          Always Originate, Never Pirate!

          declanD 1 Reply Last reply
          1
          • CalumC Calum

            @jens-eskildsen I agree, if there is a problem, evans coolant isn't solving the issue, it's masking it.

            I didn't have a problem, and I didn't mean to suggest using evans was an adequate solution to an overheating issue, as it is not.

            declanD Offline
            declanD Offline
            declan
            wrote on last edited by
            #80

            @calum what fans will go on there then lads?

            1 Reply Last reply
            0
            • declanD declan

              @calum do the thermistors generals go bad? They seem like gold dust

              D Offline
              D Offline
              dan28
              wrote on last edited by
              #81

              @declan said in Temp gauge trouble shooting:

              @calum do the thermistors generals go bad? They seem like gold dust
              I be got a scrap head if the thermostat will unscrew with out breaking you can have for it postage it's untested an I m gonna be using a vapour speedo with temp sender so the the thermostat is no use to me

              declanD 1 Reply Last reply
              0
              • D dan28

                @declan said in Temp gauge trouble shooting:

                @calum do the thermistors generals go bad? They seem like gold dust
                I be got a scrap head if the thermostat will unscrew with out breaking you can have for it postage it's untested an I m gonna be using a vapour speedo with temp sender so the the thermostat is no use to me

                declanD Offline
                declanD Offline
                declan
                wrote on last edited by
                #82

                @dan28 no thank you mate I'm running my cheap temp gauge for now I've gotta focus on re painting my tank and new rear fender

                1 Reply Last reply
                0
                • CalumC Offline
                  CalumC Offline
                  Calum
                  wrote on last edited by
                  #83

                  Never heard of them going wrong personally, DTRE doesn't have a temp gauge so it's never been an issue for me.

                  They get hot but they keep running.

                  You can get a temp sender for the vapor that screws in where the original goes. That's what I did so I have a nice reading on my unit.

                  Always Originate, Never Pirate!

                  F 1 Reply Last reply
                  0
                  • CalumC Calum

                    Never heard of them going wrong personally, DTRE doesn't have a temp gauge so it's never been an issue for me.

                    They get hot but they keep running.

                    You can get a temp sender for the vapor that screws in where the original goes. That's what I did so I have a nice reading on my unit.

                    F Offline
                    F Offline
                    finnerz89
                    wrote on last edited by
                    #84

                    @calum I've got the one that sits in between the radiator fins

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

                    Previous:
                    DR650RSE '96
                    FJ1200 '92

                    1 Reply Last reply
                    0
                    • J Offline
                      J Offline
                      Jens Eskildsen
                      wrote on last edited by
                      #85

                      120x120mm fan fits, i mounted one from a pc as a test.
                      Makes removal of the sparkplug a slightly bigger hassle
                      alt text

                      tunertomT 1 Reply Last reply
                      0
                      • CalumC Offline
                        CalumC Offline
                        Calum
                        wrote on last edited by
                        #86

                        Don't imagine it being terribly waterproof mind you.

                        I wonder how effective it actually is. Having run a liquid cooled computer, and know the temperatures a chip can reach.

                        What are your thoughts?

                        Good, bad?

                        Always Originate, Never Pirate!

                        declanD 1 Reply Last reply
                        0
                        • CalumC Calum

                          Don't imagine it being terribly waterproof mind you.

                          I wonder how effective it actually is. Having run a liquid cooled computer, and know the temperatures a chip can reach.

                          What are your thoughts?

                          Good, bad?

                          declanD Offline
                          declanD Offline
                          declan
                          wrote on last edited by
                          #87

                          @calum I'm guessing any advantage is just that an advantage so I'm probs gotta run one and thank you Jens I'm sure those dimesions will be a life saver

                          CalumC 1 Reply Last reply
                          0
                          • declanD declan

                            @calum I'm guessing any advantage is just that an advantage so I'm probs gotta run one and thank you Jens I'm sure those dimesions will be a life saver

                            CalumC Offline
                            CalumC Offline
                            Calum
                            wrote on last edited by
                            #88

                            @declan How are you going to wire it in? Personally I would want it kicking in at certain temperatures. Like on a car

                            Always Originate, Never Pirate!

                            declanD 1 Reply Last reply
                            0
                            • F Offline
                              F Offline
                              finnerz89
                              wrote on last edited by
                              #89

                              Trailtech do kits that are controlled with temp etc

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

                              Previous:
                              DR650RSE '96
                              FJ1200 '92

                              1 Reply Last reply
                              0
                              • CalumC Calum

                                @declan How are you going to wire it in? Personally I would want it kicking in at certain temperatures. Like on a car

                                declanD Offline
                                declanD Offline
                                declan
                                wrote on last edited by
                                #90

                                @calum run it from the battery on a switch so I can choose when I use it

                                1 Reply Last reply
                                0
                                • J Jens Eskildsen

                                  120x120mm fan fits, i mounted one from a pc as a test.
                                  Makes removal of the sparkplug a slightly bigger hassle
                                  alt text

                                  tunertomT Offline
                                  tunertomT Offline
                                  tunertom
                                  wrote on last edited by tunertom
                                  #91

                                  @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 F 2 Replies Last reply
                                  0
                                  • terry.tzT Offline
                                    terry.tzT Offline
                                    terry.tz
                                    wrote on last edited by
                                    #92

                                    wow hahahahahahaha 😂 😂 😂 😂 😂 😂 😂 😂
                                    @declan it probably the same one for other motors so could pick one up for £5 ish maybe measure the thread and ask sellers ect don't worry about the connection that's easy fix you probably have some old connector around

                                    "Muddy water is best cleared by leaving it alone" Alan Watts

                                    1 Reply Last reply
                                    0
                                    • 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!

                                      1 Reply Last reply
                                      0
                                      • 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

                                        1 Reply Last reply
                                        1
                                        • 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
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