I purchase this an engine from blue printed crate engine last year and ran into a problem with it.

It was spiting oil out of the breathers and dipstick.

I did a compression test and a leak down test on the engine all clyinder were holding between 155-165 psi except #8

Which was 60 psi leakdown should it going into the crankcase a bad ring.

I sent the motor back to them a received a call from them.

They said all the 2nd ring were broken and that numbers 5 the top was broken and all of the ring were in spec and it weould be covered under the warranty.

When i ask why it wasn't covered they replayed that it might have been caused by cold starts in the winter from the when the choke was closed.

It sounds to be that they are trying to pull one over on me.

My questions is are they right if what they said caused the rings to break.

What could cause only the 2nd ring to break?

How can the cylinders be ok if the rings broken.
NO damage to walls???

Also this motor uses Keithblack hypereutectic. They said they used file fit rings for the top and non file fit for the 2nd.

Is that right i also thought that the hypereutectic need a bigger ring gap on both rings.
Then again the top ring is higher on the piston then regular piston so i could be wroung.