Chaincase Leak? - HCS Snowmobile Forums

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Old 10-16-2019, 02:20 PM   #1 (permalink)
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Default Chaincase Leak?

So I’m trying fix up my 2000 RMK. It’s been leaking chaincase fluid for a while but I just kept topping it up and i was still able to ride it. I finally got around to fixing the seal, filled it with fluid and cleaned the gunk at the bottom the belly pan. I even used some brake clean and got it looking pretty much brand new. Now I notice theres still fluid leaking but when I wiped it with a paper towel it almost had a green tinge to it. The chaincase fluid that I put in there is blue. I can’t fit my fingers in there to see if the bottom case is wet or not. The sled is still summarized so it hasn’t been driven at all since the seal was replaced. Could it be coolant leaking from somewhere? The coolant doesn’t seem to be low or anything. Its still at full cold. Somebody suggested getting a new cover for the chaincase and trying that. Any suggestions?
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Old 10-16-2019, 02:51 PM   #2 (permalink)
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Is the engine oil somewhat green? There is a grommet on the bottom of the oil tank that can leak.
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Old 10-16-2019, 02:56 PM   #3 (permalink)
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Wrap a paper towel around a hanger wire, or any type of extension (screwdriver?) and see if you can fit it under the can to the bottom of the chaincase & swipe it on the bottom of the chaincase housing. See if it comes out full of oil, or not.

My guess is this isn't your chaincase. Can you take the fill plug out and shine a light in to see if the level is still up where it belongs / visible?
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Old 10-17-2019, 01:27 PM   #4 (permalink)
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I’m using Polaris injection oil which is blue so I don’t think it’s that. Yesterday I made sure all the bolts were snugged up on the chaincase and I’m going to check it today to see if that made a difference. It’s the older style chaincase with the dipstick and it doesn’t appear that I’m losing fluid. My problem is they made it way too tight to the bottom that I can’t fit my fingers underneath. Maybe I’ll do what Bontz suggested if it’s still leaking.
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