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Post by userix on Feb 16, 2015 3:58:26 GMT -5
There is oil leaking out of the yellow epoxy-covered hole next to the variator. I recently replaced the oil seal again and made sure everything is sealing properly. If i push on the yellow epoxy part, I can see oil being forced out around the edges of the epoxy. What is the purpose of hole the epoxy is sealing? Can I remove the epoxy and just fill it with JB weld?  |
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Post by geh3333 on Feb 16, 2015 4:27:03 GMT -5
The epoxy covered hole is not normal. Did something happen and you filled the whole with epoxy ? Or was it like that when u got the scoot ?
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Post by lain on Feb 16, 2015 8:08:19 GMT -5
I remember you or someone else made a very similar post in the past and I went out and opened my CVT to look to see if I had one of those holes. I also have one of those holes but it is just a hole that leads to nothing in mine. There is no epoxy on mine either. I stuck a pencil in it and the other side hit metal so it doesn't go anywhere I would think.
Did maybe the last mechanic to work on it think it was some place for him to stick a bolt and maybe he drilled the hole out and found that he drilled a hole into the crankcase instead? Then maybe he stuffed it with the first epoxy he could reach and ignored it from there on?
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Post by alleyoop on Feb 16, 2015 12:34:59 GMT -5
Not supposed to be a hole there, drain the oil and clean the hole out real good and then try JB weld.
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Post by userix on Feb 17, 2015 3:10:02 GMT -5
Here's a pic from another rider here on the forums. His engine also has the weird yellow epoxy covering the same hole.  Both of my GY6 engines I have have the yellow epoxy covered hole and both of the engines I bought brand new and worked on them myself, and I know I didn't fill the hole with yellow epoxy. |
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Post by geh3333 on Feb 17, 2015 4:36:19 GMT -5
Did you get them from the same place. You have oil leaking from a place that was filled with epoxy , that doesn't sound right and I would say it is not come from the manufacturer like that. In all scoots I've seen and all engine online I've seen , there has never been an epoxy filled hole.
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Post by geh3333 on Feb 17, 2015 4:40:39 GMT -5
If u got both from the same place , chances are they got a number of defective cases or full engines and had to fill the holes in. Jb weld would have been a better way to go .
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Post by onewheeldrive on Feb 17, 2015 4:54:47 GMT -5
Makes me wonder if that is aligned with one of the bolts that actually goes in the engine--- from the other side. It's hard to visuallize without looking at an engine. I wonder if you can see anthing if you look in that hole. Maybe they put a longer bolt in there than what they should have? I know some of the case bolts are of different lengths. Not sure if that would bust through.
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Post by geh3333 on Feb 17, 2015 5:47:42 GMT -5
Where the hole is , the crank would be in the way for any type of bolt to cross the engine case.
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Post by userix on Feb 17, 2015 15:10:05 GMT -5
If u got both from the same place , chances are they got a number of defective cases or full engines and had to fill the holes in. Jb weld would have been a better way to go . Nope. Both engines were obtained from different sellers. There's another rider here, which I posted a pic of his variator area above and he also has the yellow epoxy covering the same hole. Has to be more than a coincidence. I know there are different versions of the GY6 engine (157QMJ, 1P57QMJ, etc) I'm not sure what is the difference between the different engine codes. |
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Post by JerryScript on Feb 17, 2015 15:33:06 GMT -5
I have two theories, but just theories. 1- it's a casting hole used to allow air to escape as liquid metal is poured in, 2- it's for an oil cooler option, there is no way we have seen all variants of the gy6 in the US, I would bet the farm there are dozens of other permutations in Asia and other places with different legal restrictions than the US.
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Post by jerseyboy on Feb 17, 2015 15:49:28 GMT -5
If that JB weld doesn't hold you can find a welding shop or mechanic with a TIG welder and he can fill that hole with hot aluminum for a few bucks...it wont leak anymore.
Thats weird,,I will look at mine next time,,don't think it had epoxy there at all...
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Post by onewheeldrive on Feb 17, 2015 22:58:27 GMT -5
Where the hole is , the crank would be in the way for any type of bolt to cross the engine case. Yep it would be in the way for sure. |
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Post by geh3333 on Feb 18, 2015 0:53:02 GMT -5
If u got both from the same place , chances are they got a number of defective cases or full engines and had to fill the holes in. Jb weld would have been a better way to go . Nope. Both engines were obtained from different sellers. There's another rider here, which I posted a pic of his variator area above and he also has the yellow epoxy covering the same hole. Has to be more than a coincidence. I know there are different versions of the GY6 engine (157QMJ, 1P57QMJ, etc) I'm not sure what is the difference between the different engine codes. That is strange , now I'm going to have to look at mine to be sure it isn't like that . |
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Post by userix on Feb 18, 2015 4:04:20 GMT -5
I took out the epoxy plug by tapping a screw into the center and simply yanking it out. Here's what the epoxy plug looks like:  I looked inside the hole and I don't see any holes that open into the crankcase. All I see is what looks like part of the casing at the base of the hole scratched off.  But there is still metal behind it, but there's clearly oil inside this hole. It's very peculiar. The oil is somehow seeping out probably from this scratched off area, therefore necessitating the need for the epoxy plug. I ask a couple of shops that sell brand new GY6 engines, and they told me new engines fresh from the factory all have this yellow epoxy plug, although they don't have a clue why it's there. |
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..BAD TO THE BONE..
