Ok guys maybe somebody can help me here. I have a friend with an RX-8 with the renesis engine. Dealership said the engine is bad and they need to replace it. Dealership says the replacement engine will be a remanufactured engine and NOT a NEW one. Other friend of ours says NO WAY, This engine family is too new and there are NO remanufactured renesis engines in existence and that his replacement engine will be NEW. So my question is, Will the replacement engine be NEW or remanufactured.

Thanks

ok, looking for a definitive answer to this question is both stupid and ridiculous. how would any member know what is being put in your "friends" Rx8, if this is even true?

What I am trying to find out is whether Mazda is using remans for warranty claims or do they only have new ones?
I hope this is a little more clear for some people who didnt understand my first post. If you dont know just say you dont know and I'll ask Mazda tomorrow.......

Why's his question so ridiculous? You'd be surprised at the folks who lurk here.
Anyhow IMHO I don't believe Mazda is as yet operating a reman program for this powerplant. If they are, it's news to me; I do keep close to some Mazda folks. Please correct me if I'm wrong.
I'd say his motor is coming out of Japan.

Not only will it be new, but it will be a "long block". New ECU, new alt. etc. etc.

what do you mean long block etc.?

well normally when people refer to short / long blocks it's usually w/ piston motors, ie a short block is the block, pistons, oil pan etc...and a long block has the heads/manifolds accessories on it. it's pretty loose terminology as far as i can tell.

so in our case i presume a shortblock is just the bare motor w/o any accessories =p

Yup, it's a complete engine with all manifolds, alt., ECU, etc. From Japan. Maybe they will start doing rebuilds at some point in time, but as of November, they were still new. I don't think they have enough used parts yet and I think they are still too busy analysing the "failed" engines to start using the parts in rebuilds. Failed in quotes as many "bad" engines are just bad diagnostics.

As an owner who is new to rotary engines; what are the signs that an engine is going bad? What would I see, hear, experience if the engine were beginning to fail? If the answer is myriad, please accept my apologies for my lack of knowledge. If there is however, a predominant sign of imminent failure, I'd like to know what that sign is----just in case.....

The signs of an engine failure ranged from CEL flashing (Check Engine Light) and sudden loss of power followed by hard starts, to no obvious signs at all.

Canzoomers engine was replaced after a seal failed due to lack of oil from a bad oil injector.

Other "failures" were found when an oil change revealed engine coolant in the oil. This was from a bad rotor casting that cracked, letting coolant into the oil sump. The owner however had no performance issues or obvious signs.

A small drop (or drops) of coolant on the garage floor was noticed by a few people that in turn got replacement engines. In those cases the leak was from a crack in the rotor housing or critical area.

So the causes can range, but I do see a few repeat problems.

Loss of compression in one or both rotor housings due to falied Apex or side seals, and cracked castings (rotor housing).

These type of engine failures will present very early.

The good thing....( at least to me) is that the failures seem to point to manufacturing errors of bad part batches rather than design problems. So.....if it were to be a design flaw, we are all in the same boat, and manufacturing errors only affect select engines.