Hey all,
I was tooling around on another forum and they were talking about RX-8 engine rebuild after 70k miles. Yeah OK, have any of you heard of this or have any creditable web links proving this statement?
Thanks
Jeremy

Link?

^^^^

what he said.

beers :beer:

Complete BS.

News to me. :scratchhe

Was the car in question raced, dragged, abused?

News to me. :scratchhe

Was the car in question raced, dragged, abused?


Not sure, probably. I am just trying to find some proof of this.

Link?

Engines in all cars break down. Some fail at 5k, some fail at 250k. There's a reason for everything.

Not sure, probably. I am just trying to find some proof of this.

Driven normally and being stock (and not a defective engine), I highly doubt that. A little idea of durability, my first gen RX7 is pushing just over 200kmi now--I drive the hell outta it too.

FS

Is your 7's engine N/A?

And then there's little questions like maintenance and regular servicing.

More info is required before this can be assessed with any kind of intelligence.

Is your 7's engine N/A?

The one I have described is N/A (of course). However, my FI first gen is overdue for a rebuild (no time :( )...

Revolver is right, we need much more info...

FS

How many miles did your FI engine notch?

Just curious

you could rebuild your engin when ever you like, but breaking down and need a new engin is a different thing. My 87 NA RX7 got 170K, It lost some HP but it still run so why rebuild just drive till it drop.

How many miles did your FI engine notch?

Just curious

Pushing almost ~100kmi now. I am sure my poor seals are very tired... :cry:

FS

Well, I have a 100k warranty on my car, I only plan to keep it till it hits 100k. If the warranty dose not cover things like seals or what not, I will SHIT a brick.....

I'm at 43k right now. (She should be paid off by the time i hit 100k, lol)

BS. And as I've stated in other threads here, my FC Turbo's original engine went ~150K before it needed to be replaced.

Hey all,
I was tooling around on another forum and they were talking about RX-8 engine rebuild after 70k miles. Yeah OK, have any of you heard of this or have any creditable web links proving this statement?
Thanks
Jeremy

the FD had such a bad effect on the general public's perception of the rotary. :(

don't get me wrong. the FD was/is an incredible machine, it had some relibilty issues (mainly because of the actions of idiot tuners). but even outside the idiot tuners, it had some issues caused by its less than adequate cooling. but it was mainly the fault of improper tuning.

hey all, spoke to the dealer yesterday when I dropped my car off to get worked on. They said they don't see why it wont last 150-200k miles. I hope so!
Take a look at this link: New Engine Flash?
http://www.rx8club.com/showthread.php?t=88876

Hi,

I am new to the site. I currently have a 1994 RX7 so I am not new to rotaries but I am looking at buying an RX8 for my wife and I have a couple questions. I came across a 2004 RX8 that already has approx 100,000 miles on it. Obviously mostly highway. I was wondering if anyone knows what type of longevity these engines might have and if something were to take a dump what is an engine rebuild gonna cost. Normally I wouldn't even bother but the car is such a great deal and loaded. Thanks for the help.

my dealer told me something about the car lasting 200k miles.

when the dealer is talking, it is mostly lies and half-truths, but I have no idea on this one.

Hi,

I am new to the site. I currently have a 1994 RX7 so I am not new to rotaries but I am looking at buying an RX8 for my wife and I have a couple questions. I came across a 2004 RX8 that already has approx 100,000 miles on it. Obviously mostly highway. I was wondering if anyone knows what type of longevity these engines might have and if something were to take a dump what is an engine rebuild gonna cost. Normally I wouldn't even bother but the car is such a great deal and loaded. Thanks for the help.
HUNNY!, DONT BUY IT! Too many miles for ANY car!

Hey all,
I was tooling around on another forum and they were talking about RX-8 engine rebuild after 70k miles. Yeah OK, have any of you heard of this or have any creditable web links proving this statement?
Thanks
Jeremy

Had to be a thread full of riceboy douchebags talking about their hotrod Civics. "Dude, it's a Civic!" "yeah man, but it's not a rx-8. those pos's have 2 be rebilt evry 70k mls"

(like how I even channel the "text message speak" those idiots use?)

You're all wrong, all Renesis engine swill need to be rebuilt at 63,000 miles.

Consider yourself lucky if you can reach even 60k+ and people say you don't wanna be around when that failing seal explode.

hell i just hit 40 k miles ( in 1 year.. ) and i think the car is finally just getting broken in... it seriously took this long until is so SMOOTH. the first 20k miles it was bitchy and rough compared to what it is now. @ 15k+ power began increasing a bit and now it feels incredible. it's a drastic diffrence from what it was. i really like this car.

not any car....... have you ever seen Toyotas with 350k miles and still running.....

like its been said in the first page, it depends on how u maintain it. my co worker has an 85 rx7 NA and it has nearly 180k on the original motor. if u kno what ur doing they will last a while. its idiot tuners and soccer moms who dont check their oil level that ruin it for the rest of us...

like its been said in the first page, it depends on how u maintain it. my co worker has an 85 rx7 NA and it has nearly 180k on the original motor. if u kno what ur doing they will last a while. its idiot tuners and soccer moms who dont check their oil level that ruin it for the rest of us...



Well put... You are right

Consider yourself lucky if you can reach even 60k+ and people say you don't wanna be around when that failing seal explode.

Maybe if you redline it for the entire 60k miles...

It's true. The rotary engine is disposable. I have had to replace it three times in the last 30,000 miles. Last weekend I went to sams club and picked up a 6 pack of renesis engines. Make sure you look for the ones with the blue label. The red one is for v6 engines.

Any new input?

A little idea of durability, my first gen RX7 is pushing just over 200kmi now--I drive the hell outta it too.

FS


Well unfortunately that's not a good comparison. The 1st gen had taller 3mm apex seals while the Renesis has shorter thinner 2mm apex seals. That difference alone will shorten the life of the Renesis by comparison. Once the Renesis apex seals start to wear shorter, they will start flipping out of the rotor grooves (just like the top piece of the 3 piece apex seals do in high mileage 2nd gen Rx7's) cause it will have less side support from the rotor groove itself. Personally I don't see the Renesis lasting anywhere near 150k. Now if the Renesis apex seals wear less than expected, then high mileage possibilities can easily be reached.

Look at the thickness of the Renesis apex seals! It's much much shorter than the older versions:

http://www.mazdatrix.com/8pics/8engine/apex.jpg

Another thing you Rx8 owners need to watch for is the condition of your cooling system. Dirty contaminated coolant will reek havoc on your coolant seals. Filtered distilled water is best and don't ever use tap water.

Lastly, perform consistant carbon cleanings. Excessive carbon build-up will kill a rotary faster than you know it due to stuck seals which causes a loss of compression.

HUNNY!, DONT BUY IT! Too many miles for ANY car!

bullshit, my car has 245k miles on it and still gets 36 mpg on a good day. (it's a saturn too)

still... it better be a damn good deal with that many miles on it. no way I'd pay more than $15k for a car model that is still too young to have proven it's engine life.

Bringing this back to life! Engine failed at 59K. Mazda sent a "bad" core, so I'm on my third engine. The dealership says Mazda has fixed the problem, but I call BULL SHIT! Screw the RX8...I love it, but I'm tired of all the problems. I've had a TON of problems with ignition coils, spark plugs, 6th gear going out ect. I don't race it and I drive 5 miles round trip to work.

We are still in the "wait and see" stages as many of these cars are still low mileage and weekend cruisers. Still from what I am seeing I believe it will be the exception rather than the rule for most of these to make it to 150k miles or even much past 100. My 04 AT original engine had 117k when I pulled it out and though it still ran fine, it started slow/weakly and had below average/acceptable compression values per mazda guidelines.

I have a car with a hair over 100k here right now for rebuild, catastrophic failure. I've also rebuilt three others with about 80kish miles (catastrophic failures). A couple weeks ago I serviced a local lady's 8 with about 40k IIRC and compression tested it while changing the plugs just out of curiosity...got values below 100psi on both rotors, so it's not far away from needing an engine.

Most of these are reported by the first or 2nd owner who changes the oil at 3000 mile intervals with mazda recommended 5 weight, run premium fuel, and do not race the car, so I would consider them indicative of the average owner.

ha well posted way back in 06, now I'm over 108K still original engine, still going strong. Still getting 21-22 mpg no matter how I drive.