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.

Ya, I have the same engine... I was wondering how good there "warranty" is... now I know...

So in short they will not cover it because you might have started it in the "winter" with the choke on....

WHAT????

I have been very unhappy with mine and this is just one more reason to not recommend them to people...

Here is my story:
https://board.moparts.org/ubbthreads/show...&PHPSESSID=

I have much more to report, but I have not kept up with the thread...

The lack of ANY support and inconsistent answers about the balance should have keyed me off from the get go, but.... lesson learned

The MP 360 crate engines are much better (I have one as well) but the are not avail any more from what I understand...

sounds like carp to me. How long did this engine run before you found this problem. I think most will agree there is very little you can do to cause a ring to break like that. If it only ran for a short time I'd be willing to bet they were broken on assembly.If it ran for a long time the rings would be in short little pieces and it would be pretty hard to determine if they were "in spec" or not. I'd be real leery about this shop, you might be better off cutting your losses and taking it somewhere else IMO.

the egine had about 7000 miles in it and to top it off the problem occured in september. I this point not much i can do they have the motor they paid for shipping which going is going 2 ways which would add up to about 300.00 cost of there repair is 700. but i this point i might get screwed again if they fix it.

Quote:

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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.

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what a load of hogwash. I started my 416 (my build) last night when it was in the low 40's. No broken rings.

maybe I should tear it down and check them???

What size is the motor and where did you purchase it from?
I start my 540 CU Indy Hemi all the time when its cold.. maybe I shouldn't start it anymore?

You are in a difficult place. You cannot call them morons because they have your engine, yet you know this fact to be true and the truth is always good...... hehehe

Good luck.

Cold weather starts did it ?
What about the millions of cars in the top half of the country.
OH, I guess you need to move to a warmer climate



They must of forgot to tell you
you would need to move to a warmer climate....

If they are all broke like they say.
Sounds like the rings are to small for the groove.
The rings are moving in the groove.

Rings break from specific problems,improper end gap,improper ring to land clearence,detonation,hydraulicing and who sprayed the ether question.Also if rings are streached too much during installation they loose their ductility.

Thanks alot guys i giving them a call in a few minutes i will let you know.

You'd have to hit that piston pretty hard to break that second ring during assembly. If they hit it that hard it could very well break the ring lands on the pistons too.

KBs need the top ring larger because of the alloy and design. Not all hypers do, but KB hypers do. The second ring is not designed to be a compression ring, it's an oil scraper. So I'd have to say as BG racing said, it butted or was loose in the lands. I've broken them for both those reasons, but the bore will show sings, and that hole should need to be hit with a hone or brush. It's kinda cheap IMO to run std replacement 2nd rings as opposed to a full file-to-fit set. But this shouldnt be a problem mechanically, just cheap. Choke runs it rich. It might make it harder for the rings to seat initially if it was over rich, but you would see questionable readings on all the holes, not one.

i have to agree with the others.
is that one of those companies that sells really cheap rebuilt engines?

Tell them to pound salt up their butts!!!If it was from cold rich start-up the rings would be worn and the gaps would be larger!!!

Well got off the phone with the sales/warranty manager.

I told right off the bat that a cold start "issue" would not cause the rings to break and went on about the assembly of short block was the problem.

his replays was i don't know why they would of told you it was a cold start problem when it appears to be a detonation issues. be it the timing fuel blah blah blah.

i told them i set everything to their specs.

Still went on how it was something on my end.

So i having send me pictures of the broken rings not like that will help and he send this problem does occur and is not out of the norm.

So he mention that they used to send rings back to the manufacture to see why they failed.

So i tolded him to do the same with mine and asked them to fax over the results when they get them in.

So it looks like i am going to have to bite the bullet on this one.

I would write a letter to the Better Business Bureau in their town before giving up.