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Discussion Starter · #1 ·
On easter sunday me and my buddy went ridding I was on my 250x he was on a 400ex. Well my chain keep coming off when we were ramping and messing around I didnt think anything of it. So he let me ride his quad and he rode mine we were racing down the road when the chain snapped on mine I thought no big deal just lost a link. I stopped and looked at it and after it broke a link got jammed sideways in between the drive sprocket and side cover putting a big hole in it. And now it is leaking oil around the drive sprocket shaft any on got repair maual pages telling how to tear the lef side of the motor so i can see what damage I caused. Thanks
 

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You probably didn't do anything but crack the case. That's what case savers are for.
 

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OH, around the shaft???? What year and model is your ride?
 

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Yeah, I have used JB Weld to fix holes in blocks, too. I have used it to fix the block where the chain broke and put a hole in the block just like yours did. Just clean all the oil off the block real good and it will hold. If it is a large hole, just put some JB Weld around the edge of the hole and then cut a piece of screen wire or fiberglass cloth and lay over the hole onto the JB Weld. Now put more JB Weld over the screen wire or fiberglass cloth. Smooth it out as good as you can. Let it dry for the full amount of time specified on the tube or package. When it's dry you can sand it and paint it. If you do it right, it will hold and you won't even hardly be able to tell it. I've fixed 3 or 4 like that and they held, too. Didn't leak a drop, but you have to make sure you clean the oil off the block really good or it won't hold. It's best to use Acetone to clean the oil off, because it dissolves oil real good and it drys quick and it don't leave any type of residue or film behind.
 

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He did not crack the case. It is leaking from around the shaft that the sproket attaches to.
 

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I stopped and looked at it and after it broke a link got jammed sideways in between the drive sprocket and side cover putting a big hole in it.
I was going by what he said in his first post, but if he didn't put a hole in it, then he must have damaged the output shaft seal.
 

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I wonder if he could have bent the shaft??
I guess it's possible, but I've never seen it happen. I've seen plenty blocks busted, though.
 

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Man mine was poping off like that once.Just glad I got a case saver on mine.
 

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I bet you tweaked the shaft enough for the seal to split,ie it got smashed enough to leak.

I would say the seal was old and is trash now.

Pop a seal in it if thats the case,if no leak(please buy a case saver)
 

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The shaft can still be bent with a case saver, just your case won't break.
 

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Discussion Starter · #14 ·
I bet you tweaked the shaft enough for the seal to split,ie it got smashed enough to leak.

I would say the seal was old and is trash now.

Pop a seal in it if thats the case,if no leak(please buy a case saver)
I has a new outter seal I replaced it when I got the quad because it leaked then I think i just messed up the seal I took a socket end drove the seal in tighter and it slowed the leak down. and I am just gonna jb weld the case together
 

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Discussion Starter · #15 ·
does any one have a pic of a case saver?
 

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Here is a case saver on a 450R.

 

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The oem ones suck.

Buy an aftermarket saver.

If I can find mine I will sell it to you for $10 shipped.
 

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I use the stock one and it works fine.
 
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