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  1. #1
    Bob 1tommygunner1927's Avatar
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    Crankcase sealer

    The shop (2008 RXT-X) manual calls for sealing the crankcase with Loctite 5910 (P/N 293 800 081), applied with a roller or fingers, and cautions about using other products.

    My question; can other products be used (what) and how should it be applied?


  2. #2
    Any of the products made by Threebond will work. Like a lot of people, I use Threebond 1211 for all 2 and 4 stroke crankcase sealing. Threebond makes Yamabond, Hondabond and others private label sealant for the OEM's.

    The manual cautions against using other products, because Rotax was stupid and used an anaerobic sealant (Loctite 515/518 ) for many years (up until 2001). They finally figured out that it doesn't work worth a damn for sealing cases, and went with a silicone product like everyone else had been using for years.

    I apply it in a bead about 1/16 to 1/8" diameter, so when the cases come together, it squeezes the bead out. If you put the right amount, very little comes out either inside or outside. (you need to make sure you don't put too much on whatever way you apply it, or else it can end up in your oil...)

  3. #3
    Moderator beerdart's Avatar
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    Quote Originally Posted by Sea Dood View Post
    Any of the products made by Threebond will work. Like a lot of people, I use Threebond 1211 for all 2 and 4 stroke crankcase sealing. Threebond makes Yamabond, Hondabond and others private label sealant for the OEM's.

    The manual cautions against using other products, because Rotax was stupid and used an anaerobic sealant (Loctite 515/518 ) for many years (up until 2001). They finally figured out that it doesn't work worth a damn for sealing cases, and went with a silicone product like everyone else had been using for years.

    I apply it in a bead about 1/16 to 1/8" diameter, so when the cases come together, it squeezes the bead out. If you put the right amount, very little comes out either inside or outside. (you need to make sure you don't put too much on whatever way you apply it, or else it can end up in your oil...)
    1+ a small finger smear on one surface is all you need. All I use is 1211.

  4. #4
    West Texas RXP skoepp's Avatar
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    I rolled it on but thats just me.
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  5. #5
    Bob 1tommygunner1927's Avatar
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    Thank you very much, Gents.

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