DT125R FORUM

    • Register
    • Login
    • Search
    • Recent
    • Tags
    • Popular
    • Users
    • Groups

    Crankcase Sealant; What's Everyone Using?

    Engine
    6
    8
    131
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • H
      HOTSHOT III last edited by

      Morning all, as title really, had a quick search online and there's a fair bit of confusion around this as you can imagine.

      Always used to use Blue Hylomar on TZR/TDR250s back in the day with no issues but they have horizontally split cases so the join is not constantly below 800ml of gearbox oil, not sure if this would be OK on vertical cases.

      Thanks, hope someone can help!

      Calum 1 Reply Last reply Reply Quote 0
      • Calum
        Calum @HOTSHOT III last edited by

        @hotshot-iii This is so ANNOYING!

        Use quality stuff.

        I recently done my engine and I used Hondabond. But Yamaha do one called Yamabond. I also hear good stuff about Threebond.

        https://www.ebay.co.uk/itm/373396872668?hash=item56f0301ddc:g:ebEAAOSwYxFf3NdL

        https://www.ebay.co.uk/itm/111912846248?hash=item1a0e8683a8:g:ONIAAOSwZjJU7aiO

        It's expensive for a reason!

        Now Millyard paints this stuff on with a small painters brush, which allows a thin even coat to be applied, which is a neat trick.

        Not much is needed, so a lot gets wasted, but trust me, as someone who has used other "recommended" stuff in the past and had nothing but leaks. It's a job worth doing right!

        Always Originate, Never Pirate!

        H 1 Reply Last reply Reply Quote 1
        • declan
          declan last edited by

          @hotshot-iii are you talking about anaerobic sealant? I've used a cheap gastight brand and it seems fine used it on 2 engines one of which is a dt engine but tbh it's better to stick the yamabond it really is the best in the business permatex has yamabond under there own brand so it's cheaper do some searching and you will find it

          D 1 Reply Last reply Reply Quote 1
          • D
            DTR+NSR @declan last edited by

            Yamabond, hondabond etc are all re-packaged threebond. Can't remember if it's 1185 or 1215 I use on 2 stroke cases.

            1 Reply Last reply Reply Quote 1
            • Challenger
              Challenger last edited by

              https://www.ebay.co.uk/itm/303707698375?epid=249614517&hash=item46b663b4c7:g:j24AAOSwoddaa0Un
              always used Reinzosil, never failed me.

              • always using a thin layer of loctite 5923 for the head gaskets, never failed me either.
              1 Reply Last reply Reply Quote 1
              • H
                HOTSHOT III @Calum last edited by

                @calum and everyone else who responded, thank you! My Top Racing crank arrived today so looking to crack on with this and make the most of the rubbish weather!

                S 1 Reply Last reply Reply Quote 0
                • S
                  SpookDog @HOTSHOT III last edited by SpookDog

                  @hotshot-iii

                  My crank case has been leak free even using synthetic gear oil, for 4000 miles now. I used generic red semi hardening Hermatite like stuff. Blue Hylomar was good enough for Rolls Royce, but I really think itโ€™s all about preparation. Make sure the surfaces to be mated are flat, level clean and grease free...

                  Then cross your fingers when you fill it with gear oil! ๐Ÿ˜œ

                  Calum 1 Reply Last reply Reply Quote 0
                  • Calum
                    Calum @SpookDog last edited by

                    @spookdog said in Crankcase Sealant; What's Everyone Using?:

                    Blue Hylomar

                    This was what was recommended to me and did nothing but leak. I've used it on several components and never had success. As I say, the bond stuff seems to be the goto kiddy everyone is using these days. I recently redone my DT engine with the Hondabond and it hasn't had a drop since.

                    Always Originate, Never Pirate!

                    1 Reply Last reply Reply Quote 0
                    • First post
                      Last post