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Sand viper 650 new piston


Rasken

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Hello.

New to this forum and glad to find it. So i have bought a Joyner sand viper 650, 2008 with low compression. I took the motor out and checked the pistons and the ring gap was to big plus the engine had pinged so the upper part of the piston was bad.

So i ordered a new piston set with pistons, rings and pins. But here comes the problem, the new piston has no gap for the c-clip but the old piston had...? Why that? The pin floates perfect in both piston and rod shaft so it can wander away and hit the cylinder walls.

Anyone that has come across the same problem? Im not new when it comes to mechanic but has never come across this problem before.

Hope you understand what i mean, i tried my best.

 

/Jonas

Sweden

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8 hours ago, Travis said:

does it use a C clip on both sides or just the one?

No C clip in any side, there is no place for a clip. The solution that i have come up with is to lathe 4 ptfe plastic ends for the pins. There seemes to be no other good solution to this. 

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  • 2 weeks later...

I expect they misidentified the parts that you needed.  Going to have to talk to your supplier and get them replaced.  That's the problem with ATVs and UTVs.  You're stuck with being your own shop.  Piston sets without C-clips have a press fit pin in the connecting rod (as you probably know).

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Yes i know but then the radie in the connecting rod should be smaller than the piston but its not, its exactly the same. I think they dont now what they are selling. I asked them how i supposed to do and they answear me that i should ask a proffesional mechanicer. What a f**k! 

But the teflon plugs are ordered, i did a drawing in CAD and gave them to a forge (or what its called) shop to get them fixed to me. So i hope i get them soon so i can drive some miles this year.

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