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HOW DO I GET COOLANT OUT OF THE CRANK CRANK SHAFT W/OUT SPLITTING THE CASE?

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  • rdusenberry Sep 04, 2010

    Oh, well just to let you know more info about the bike, its a 2 stroke eng/liq cooled, and the crank oil is separate from transmission gear oil. The oil that is supplied to the crank is from the mixture in the 2 stroke gas 40:1 ratio. The oil in the case for the trani gears is the oil your telling me to drain out?
    I have already drained the oil in the case and there are no signs of coolant in the oil, but there is many signs of coolant on what you can see of the crank w/the jug removed. So, please correct me if I am wrong, but I don't have a full grasp on what your solution is. Please get back to me and thank you very much for your time.

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You can put kerosene in the crank case. and run the engine for about 10 seconds then drain the oil. Refill and repeat. You should do this 2 or 3 times. That will get all of the water out. Don't put more than a half a cup of kerosene in. And don't run the engine for long. Just enough for the kerosene to cleanse the water.

Posted on Sep 05, 2010

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I'm sure you have drained the oil at this point. If not, then do so. Then add more oil and tilt the bike down left and right and drain oil again. You can also use a wet dry vac to pull any remaining coolant from the case thru the drain or from the openings that you can acess from side cover removal.. If there is trace amounts left over, not to worry. After you repair the issue and run the engine, drain the oil once again.

Posted on Sep 04, 2010

  • GetMeOttaHere Sep 05, 2010

    Just to let you know, I have worked, repaired and modified so many 2 stroke engines, it would boggle any-ones mind. With that being said, you did not say WHERE this coolant had accumulated in a specific part of the engine, and because it was obvious to me that the negative side of the compression chamber is where most of the coolant would accumulate, I figured you also had coolant in the gear case. If you want to properly address this issue, split the crank and do it the correct way with out cutting corners. And while the case is split and you have the crank assembly out, replace the upper and lower bearings, measure the tolerance of the cylinder, and replace the piston and rings as well as boring the cylinder if needed.

  • GetMeOttaHere Sep 05, 2010

    Don't forget to replace the crankshaft seals also.

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www.babbittsonline.com/pages/parts/viewbybrandand/parts.aspx

Top rating on this solution? Thanks!


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