hwr
Scoot Member
Posts: 73 
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Post by hwr on Jul 19, 2018 7:23:55 GMT -5
So got my ground up build running after 1.5 yr of spending loose time and change on it.
Went to put it on the centre stand, next minute....the back wheel is on the ground.
Get on my hands and kness, see massive crack in the case.
Lil bit depressed right now haha.
Its a keeway hurricane copy, so chinesium cast alloy cases.
There is a 1" square area infront of the variator which is broken.
How should i go about getting this fixed?
*PS how do i upload photos?
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Post by Lucass2T on Jul 19, 2018 7:55:12 GMT -5
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hwr
Scoot Member
Posts: 73
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Post by hwr on Jul 19, 2018 9:03:28 GMT -5
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Post by 90GTVert on Jul 19, 2018 9:17:26 GMT -5
One bit of good news is that it's not the most critical area. Looks like it stopped short of getting into the crankcase.
If you have the chunk, you could have it welded. Could possibly JB Weld it back in.
You could replace the large case half. I know that sucks when you've worked on the case much.
Not so sure you couldn't just run without it. Don't know if it will be any great loss of meaningful structural support. I wouldn't leave jagged edges because I'd be afraid cracking could continue, and they could be hard on the hands when servicing.
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Post by Lucass2T on Jul 19, 2018 9:21:31 GMT -5
Yeah its not really a structural part of the cases thats damaged. Like Brent said you could JB weld it back together. Myself id clean that hole up, make simialar one somewhere in the back part of the cases so cold air can flow through from the front to the back.
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Post by ryan_ott on Jul 19, 2018 9:51:36 GMT -5
It could be worse... like mentioned some JB weld will take care of that. On a side note I see a ground in the cvt area were you using the cvt cover? That’s needed for support in the rear for the clutch shaft. Bad things can happen if you ride without it.
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Post by islandscrub on Jul 19, 2018 12:44:10 GMT -5
Already see some JBweld in there, a little more wouldn't hurt.  |
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Post by 'O'Verse on Jul 19, 2018 18:40:38 GMT -5
I'd try to JB weld any part of the inner cracked surfaces. Or even better get a dremel with a sanding roll in there and smooth the edges. To prevent further case cracking. Keep an eye on it but don't worry about it. Unless it starts cracking further into the sealed area. Consider it cvt venting. Or a custom kickstand slot.  |
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PirateLabs
Scoot Enthusiast
Posts: 296
Location: Bowling Green, KY
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Post by PirateLabs on Jul 19, 2018 19:46:14 GMT -5
I would drill a hole, maybe 1/8", right in the end of that sharp "V" to keep it from cracking any further like Brent mentioned. I will still drill it even if I cleaned up the rest with a grinder or, JB weld the piece back in or...whatever. Remember this is Chinesium and if it broke that easily, it would be nothing for a crack to propagate further from that "V".
Bill
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Post by tsimi on Jul 19, 2018 21:46:18 GMT -5
Chinesium! LoL Funny word and very accurate. Gotta remember that.
Well on the bright side nothing vital seems to be hurt and you got a nice CVT ventilation hole now. A few small ones on the rear and you are good.
Are your cases ported and trenched?
There is some JB weld there already.
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PirateLabs
Scoot Enthusiast
Posts: 296
Location: Bowling Green, KY
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Post by PirateLabs on Jul 19, 2018 22:12:44 GMT -5
Chinesium! LoL Funny word and very accurate. Gotta remember that. Thanks but, I stole...um...borrowed that term from some other member here that I saw use it. I agree that it fits. I am sorry I can not recall his name or that post but, he gets 100% credit for it as that was the very first time I have ever seen it used. Bill |
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hwr
Scoot Member
Posts: 73
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Post by hwr on Jul 20, 2018 0:23:07 GMT -5
Yep i always have the cover on, already got a bit of slop in the gearbox input shaft haha
Yeh cases have been trenched mildly and match to the cylinder
Im thinking about the JB approach after a few expensive welding quotes
Has anyone ever had their chinesium cases welded?
I cant believe id be the only person this has happened to
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Post by Lucass2T on Jul 20, 2018 3:50:47 GMT -5
I think it's difficult to have it welded up since you can't really tell the kind of chinesium alloy is thats used in these motors. You can possible make it worse, but im no metallurgist in any way shape or form.
Maybe glue a random piece of metal over the hole with JB if you are worried about case strenght. Otherwise keep the hole for ventilation. And yeah, drill a hole at the ends of sharp edges to prevent further cracking.
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Post by mrkswthwrth on Jul 20, 2018 6:47:30 GMT -5
Chinesium! LoL Funny word and very accurate. Gotta remember that. Thanks but, I stole...um...borrowed that term from some other member here that I saw use it. I agree that it fits. I am sorry I can not recall his name or that post but, he gets 100% credit for it as that was the very first time I have ever seen it used. Bill I'm the first person i saw use it on here, but I'm also fairly new. |
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