lateapexer
lateapexer New Reader
2/13/14 3:23 p.m.

Looking at an RX8 with an engine replacement under warranty. What exactly is this? New crate engine, engine rebuild, reflashed computer or just replaced bits?

Rufledt
Rufledt SuperDork
2/13/14 4:41 p.m.

generally that means they put in a remanufactured one. Mazda has a factory somewhere in america I think where they rebuild them. I hear they are hit or miss sometimes on if they seal as good as a new one.

lateapexer
lateapexer New Reader
2/13/14 5:08 p.m.

Thanks. That's what I was concerned about. The seller was trying to make the engine change a good reason to buy. Think I'll pass and continue looking for a car that has a good documented service history. I'm used to rotaries that just run and run. It's hard to know if there is an actual issue with RX8 or not.

BoxheadTim
BoxheadTim GRM+ Memberand PowerDork
2/13/14 5:40 p.m.

I guess it depends on how good the engine is that was replaced. A lot of RX8s seem to need engines, especially early ones. With an early one, a replacement engine with a new set of coils is probably a good thing.

Either way, a compression test might be a good idea.

Snrub
Snrub New Reader
2/13/14 8:40 p.m.

I believe they put in a remanufactured core (short block). I'm not sure which is better; Do you get an more used engine which could expire, regardless of maintenance or a newer reman? I don't think it's fair to say one way is significantly better than another. My personal opinion is that the RX-8 engine is more reliable than a turbo RX-7, but a fair bit less reliable than a n/a RX-7. It's hard to truely know the answer.

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