Vertex Rings? Can I use Oem instead?

[egmike]

I have a 93 kx 250 that had low compression but still ran fine. I just pulled the top end off to inspect and the piston is still in good shape so I thought I would just do new rings. Does any one know where to get a new set of std size vertex rings or could I use oem kawi piston rings ??

 

[mxdj666]

just go to your dealer and look in the parts unlimited book they carry vertex pistons, you can also call pro circuit they sell then as well

 

[KX02]

I don't think vertex and stock rings interchange

 

[76GMC1500]

Does the Vertex piston have ART cast into it anywhere on the underside? If so, it's probably an OEM piston, anyways. Double check your ring gaps.

 

[KX02]

Vertex pistons are not ART pistons. They are made in Italy.

 

[egmike]

It sez vertex and 1120 on the underside, the local dealer can get vertex rings but I guess they are back ordered for 2-8 weeks so I bought a wisceo top end kit instead and it will be here in 2 days.

 

[76GMC1500]

Wiseco is better than Vertex, anyways.

 

[egmike]

Got the top end rebuilt - I used the wiseco kit and went well. I check the ring gap and I have .014-.015. I check the old rings for the hell of it and was .035 :yikes:

 

[eric618]

Since it's apart, why not do the whole top end? To me that's like changing car oil but not the filter.

It's apart, do the piston/rings/bearing, etc. You'll be glad you did.

 

[76GMC1500]

He did do that.