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DT125R FORUM

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  4. 2 head gaskets in two weeks

2 head gaskets in two weeks

Scheduled Pinned Locked Moved Engine
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  • britshgigoloB britshgigolo

    yer when he did mine he skimmed the head heavly to get it right and told me to use two spark plug washers/gaskets to be on the safe side to stop the piston hitting the head wish i had sent the cylinder to him now but the idea was to get it done quick as was a spare top end so i could send my original off to him for him to play with and work some magic on but as have had problems im still waiting to get it running right before i send it off have ordered a new gasket and will skim both head and cylinder again and see what the out come is as no rush as have put the original back in for now as use for work eveyday

    A Offline
    A Offline
    andrewj1680
    wrote on last edited by
    #15

    @britshgigolo I had mine back within a week bud definitely worth having down it responds better on the throttle at whatever rpm where as it really felt lazy before

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    • britshgigoloB Offline
      britshgigoloB Offline
      britshgigolo
      wrote on last edited by
      #16

      thanks for the info and yer will be getting it done as soon as the other runs fine there no point with the spare as its on max limit now so will be getting it resleaved then will send that off to as always good to keep spare on the shelf as never know

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      • britshgigoloB Offline
        britshgigoloB Offline
        britshgigolo
        wrote on last edited by
        #17

        Well think I found the problem the piston was catching the head gasket it has been bored to its limit so should of checked really but hope now it will be all ok give the bore and head a light skim to make sure it had not warped but all seems ok so fingers crossed this time will go ok when I get time to put it back in

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        • CalumC Offline
          CalumC Offline
          Calum
          wrote on last edited by Calum
          #18

          If the piston has been bored to it's limit then the powervalve is going to need modifying.

          If you don't then I guarantee that the engine is going to seize again!

          Always Originate, Never Pirate!

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          • britshgigoloB Offline
            britshgigoloB Offline
            britshgigolo
            wrote on last edited by
            #19

            i had already done the power valve before and that had no signs of problems when i took it apart just the head gasket and its where you can see it has blown across from the cylinder to the water jacket so hopfully this time it will all be ok

            CalumC 1 Reply Last reply
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            • britshgigoloB britshgigolo

              i had already done the power valve before and that had no signs of problems when i took it apart just the head gasket and its where you can see it has blown across from the cylinder to the water jacket so hopfully this time it will all be ok

              CalumC Offline
              CalumC Offline
              Calum
              wrote on last edited by
              #20

              @britshgigolo You may find a copper head gasket will be your ticket, if modifying the gasket proves too difficult.

              I believe you still need sealant on copper gaskets, although don't quote me on that.

              Just be wary of the powervalve is all.

              Always Originate, Never Pirate!

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              • britshgigoloB Offline
                britshgigoloB Offline
                britshgigolo
                wrote on last edited by
                #21

                was told to use this with copper gasket Permatex Copper Spray-A-Gasket Hi-Temp Sealant they said give the gasket two coats before fitting my self i dont know anybody that has used one personly so can only try

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                • MightymanM Offline
                  MightymanM Offline
                  Mightyman
                  wrote on last edited by
                  #22

                  Just confirming.. you aren't supposed to use sealant with genuine head gaskets are you?!

                  TDR 125 - 2001

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                  • britshgigoloB Offline
                    britshgigoloB Offline
                    britshgigolo
                    wrote on last edited by
                    #23

                    yes i know that was talking about the copper head gasket

                    MightymanM 1 Reply Last reply
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                    • britshgigoloB britshgigolo

                      yes i know that was talking about the copper head gasket

                      MightymanM Offline
                      MightymanM Offline
                      Mightyman
                      wrote on last edited by
                      #24

                      @britshgigolo ah okay, thought I'de been doing it wrong this whole time for a second there!

                      TDR 125 - 2001

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