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Post by 4950cycle on Feb 4, 2017 15:52:18 GMT -6
JCL MP250A Lihai 257cc powered Just did an oil change on my JCL and made double sure not to over fill it to get that out of the way right off. Went for a quick 5 mile rounder on her and right before I got back to the house I hear a loud hissing sound over the motor sound for about 5 or six seconds then the scooter quit pulling. Oil all over the CVT .Someone please tell me there is a replaceable shaft seal from the outside of the engine under the variator. I have not done a full investigation but I think this is where it is comeing from. Has this ever happened to anyone else ?
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Post by cyborg on Feb 4, 2017 19:20:57 GMT -6
You may have had a crankcase vent issue and yes there's a seal on the crank behind the variator,,,I've heard of these seals popping
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Post by tvnacman on Feb 5, 2017 8:03:30 GMT -6
blow by helps that happen too. and the crank case vent being restricted.
John
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Post by 4950cycle on Feb 6, 2017 9:47:32 GMT -6
Where is the crank case vent on this motor ? And thank you both for the good feedback.
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Post by tvnacman on Feb 6, 2017 10:29:44 GMT -6
it the hose on the valve cover
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Post by 4950cycle on Feb 6, 2017 12:21:46 GMT -6
JCL MP250A Lihai 257cc powered / I was running an open CVT (no cover). I was doing research on tuning the CVT for optimum performance. BTW, No belt shredding going on. Belt up to width spec. Was keeping to close of an eye on it for any negligence junk to go on. My main question right now was can I pull the variator side crank seal from the outside of the engine with a drilled hole with a screw in the seal with a pair of pliers or simular ? Read more: itistheride.boards.net/thread/10011/oil-blew-all-over-cvt?page=1#ixzz4XvlKUwqU |
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Post by tvnacman on Feb 6, 2017 12:39:10 GMT -6
I have heard of it being done. If I would attempt doing it. I would have 3 new seals on hand. When you need to tap the new seal in the crank case. Use the old seal over it, but if you drill the old one out the share edges may damage the new deal your tapping in so use the extra new one.
John
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Doc's Anything Goes
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Post by tvnacman on Feb 6, 2017 12:40:05 GMT -6
I have heard of it being done. If I would attempt doing it. I would have 3 new seals on hand. When you need to tap the new seal in the crank case. Use the old seal over it, but if you drill the old one out the share edges may damage the new deal your tapping in so use the extra new one.
John
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