Eldragon0

Please note, the "front", and "rear" labels next to the respected pictures. They ran the test for the front, then for the back. Instead of having both results on one paper, they got it on two separate pages both stating one set of numbers. Also, seeing the label here, where about do you live?

RIWWP

iTrader: (2)

It's been almost a month and he already stated his course of action.

Eldragon0

Yep, but I'd rather still give some positive input then let him run an 8 to the ground.
I'd recommend going here if you are still interested.

"Luther Brookdale Mazda Mitsubishi
7235 Brooklyn Blvd, Brooklyn Center, MN ‎
(763) 566-5600 ‎ ·"

I talked with there rotary specialist when I brought my shinka there to get it's compression test. He was a really cool guy, and told me flat out " Anything under 5.9 is a replace here no questions asked , and anything under 6.9 we will look into to see if we can replace it" I'm pretty sure the guy just enjoyed working on the 7's and 8's.

Bladecutter

You really don't need to.
The OP has stated, quite clearly, that he doesn't give a **** about his car, and the rotary engine inside of it, and doesn't want to be bothered with getting an engine replacement because he went to one dealer, and talked to someone at Mazda.

He just came here to start a thread saying he couldn't get his engine replaced under warranty, and that's all he wanted to do. He doesn't need our help, because he knows better than all of us.

And now he's going to install a V-8 into his RX-8.

He's the man.
Yes he is.

BC.

tylerdurden

Ron Tonkin Mazda in Hillsboro OR if anyone did want to know. The dealers are taking their cue from Mazda, not the other way around. Unless they are willing to be unethical and claim issues that aren't present, the buck stops at MNAO. I'd rather not have anyone lie for me. I still have till November anyway. At any rate, chill errbody, I'm a big boy, don't worry about me.

tylerdurden

November 2014, that is.

tylerdurden

I like the car quite a bit actually, or I wouldn't consider dumping money into it. And I didn't start this thread, a mod moved the content to quit jacking another thread. Thought a new buyer might want to know and other owners in general. And we'll see on the V8. That was always the plan, just waiting for a good kit to come along. And you can quit being a **** if you like.

Karack

when you go into the dealer and want a compression test done just for the sake of checking engine health, you should be giving some sort of symptom if you want to be taken seriously for a replacement engine.

for example, say the engine has hot start issues even if it does not. that way when the engine fails compression they will have a reason to push MNAO for a replacement. if it fails but you have no complaints, what is their reasoning for trying to fix a ghost issue regardless of the results? go to another dealer and state it has hot start issues and a lack of power when the ambient temps are warmer, that way they have an underlying story to base the replacement off of.

the reason they do not just change motors for the sake of compression results is because they STILL have difficulty keeping up with the demand of replacements. it generally takes me a week to receive my replacements and i have to fill out diagnostic cards for each engine i order, the dealer also has difficulty getting replacements to keep in stock. how may other motor corporations require you to send in engine diagnostic charts to order an engine out of pocket? those are NOT even warranty claims. i can go to chevrolet or ford and order an engine without getting the third degree on why i need an engine.

just because it fails a compression test does not make 2+2=4. you MUST have additional symptoms to make it equal out to a replacement engine, this is why there is a list of symptoms on the diag sheets along with the compression measurements. most technicians won't even bother duplicating the complaint if the compression numbers show the underlying reason, your updated starter is simply masking them(320 cranking RPMs and your compression still resulted in **** poor figures).

"what is the customer's complaint?"
"he doesn't have one."

2+2=0

engine replacements are not manadatory.

RJayX-8

The dealer will honor the extended warranty that Mazda issued if the lack of power recall/TSB hasn't been done, I work at a dealer these are the recall/TSB's that they make us techs check for before warranty engines can be approved MSP16 and MSP04 these cover the Cat as well

nycgps

iTrader: (1)

They did mine even i had both recalls done way before that.

nycgps

iTrader: (1)

Thats true, back then when wayne first checked my engine, i had hot start and dies at red light issue, but they couldnt do anything cuz my compression shows im ok. But 9 months later, they checked again and it failed, no further questions just ordered a new engine.

nycgps

iTrader: (1)

I like how people talks about mpg, And on the same line, talks about doing a swap blah blah blah. And i have yet to see v8 swaps gets better mpg.

Boeuf

iTrader: (2)

Around town a lsx rx8 will probably get around the same fuel economy. On hwy cruising however an lsx rx8 will most likely get high 20's - 30 mpg.
With the T56 transmission, 6th gear is a double overdrive. 70mph is around 1500 rpm.
The mpg are all estimates of course but v8 mx5's see over 30mpg hwy and as far as I've read so do Vettes.

tylerdurden

Yeah, I really don't care about fuel economy, but it's a bonus to get twice the HP and better highway economy, right? I did just get 22 mpg on a mostly highway trip and was surprised, that new ignition did wonders. And thanks for the info Karack, it's nice to have your perspective.

Mr.Mango

iTrader: (2)

The dealer doesnt control if a engine gets replaced or not, a tech ticket needs to be issues and the engineer gives out a MASH# for replacement once they receive your data. The main test they base engine replacement off of is the BARO test, it could fail every compression test but if it passes Baro your SOL. RJayX-8 is also correct the TSBs related must be complete before testing compression & baro for accurate numbers

RJayX-8

Yes forgot bout the BARO, but also with most big warranty cases like this for example the dealer is not in control.

pistonhater

That would be another 3 years for some of us

revivo73

Is it technically correct to call it 0 compression? 0 compression should mean no compression at all, and if there's no compression at all, doesn't that mean no power is produced on that rotor? And in that case, wouldn't the engine produce half of 231-234 HP?

Bladecutter

We can only take what has been shared with us at face value, but yes, you are correct. If all three faces of one rotor is producing no measurable compression during a properly conducted compression test, then that means that the other rotor is producing all of the power that the engine outputs.

Now, if it only generates no measurable compression at a low cranking speed due to an old, weak starter, and it actually generates low compression numbers at idle speed, then that could slightly cover up the problem when the engine is running. Lets say it generates 0 compression at 125 rpm, but at 875 rpm, all three faces generate 4.5. It's still failing according to Mazda's own charts.

Regardless, this issue is pretty much been run into the ground already.
Very few other forum members have run into the problems getting their engines replaced under warranty as the OP has in this thread.

BC.

tylerdurden

Just to make sure no one is misunderstanding the results, it's not 0 on the rear, check the pics again.

tylerdurden

Oh, and it just passed emissions, no sniffer for OBD2 cars in OR.

revivo73

The compression values @250rpm:

Front Rear
Ch.1 615.32 442.30
Ch.2 619.32 415.30
Ch.3 621.31 395.30
Diff. 6.00 47.00

The values in the rear chamber is quite lower than the front (and there's a higher deviation betw chambers)

If the compression of the rear was really zero, then it would cause a big vibration (caused by the rotor mass freely rotating)

The values of the rear are about 2/3 of the front. So, the correct expression might be 2/3 compression, not zero compression.