Is this really a big problem?

[Peter B]

So i stumbled across this post on another forum.

http://www.****************.org/for...smission-driveline/4580-omg-sucks-all-us.html

I really don't know much about cars and my MS3 is my first NEW car. That said I have a degree in aerospace engineering, so I feel confident that cars are something I could, and probably should learn about.

I guess I'm wondering what that post means to me as a newbie MS# owner. My car is 2 weeks old and already has 1300 miles on it. I will be putting about 500-600 per week on it. I am very happy with the car just the way it is and I don't really want to mod or add anything at the moment.

However if the issue of carbon build up is as bad as that post makes it seem, that is something i would like to prevent. What can I do without spending a small fortune, adversly affecting my car's performance, or voiding my warranty?


-Pete (glare)

 

[StealthWyvern]

Can't veiw the pics without signing up.

 

[Betelgeuse]

While some carbon buildup is possible, it's too early to jump to any conclusions. Think of that as just a heads-up but not as something you should definitely fear.

If you really wan't a more realistic idea, check the Mazda 6 forums and the Australia forums where some people have already crossed the 50k mark on these engines. I haven't seen anything yet pointing to that specific problem.

 

[StealthWyvern]

Their is a guy local to me well some what local anyways that has over 38k on his with no issues.

 

[Peter B]

http://www.****************.org/forum/attachments/mazdaspeed-3-engine-transmission-driveline/227d1208716803-omg-sucks-all-us-mazda-oil-carbon-build-ups.jpg

That is the first one. Please credit ptperformance on ****************.org for that. The rest are about the same, but of different parts of the engines.


So if it turns out this is an issue, and my car were to get heavy buildup like that, I assume it is something that can be cleaned out at a later date? When I say cleaned i mean to the point of almost being new again? I guess as long as the problems can be fixed and corrected at a later date im not too worried.

-Pete

 

[StealthWyvern]

you will have to upload the picture else where as that site doesnt allow hot linking.

 

[Craighjr]

I am suprised you haven't gotten banned for linking to mazdaspeed forum dot org yet HAHAHAHA. That car is pretty carboned up but I don't think a second person has really come up with a second looking as terrible.

 

[zoom-zoomhatch]

Back to the one redline a day keeps the carbon away. Had a rx7 and heard this too many times.

 

[AutoXRacer]

So i stumbled across this post on another forum.

http://www.****************.org/for...smission-driveline/4580-omg-sucks-all-us.html

I really don't know much about cars and my MS3 is my first NEW car. That said I have a degree in aerospace engineering, so I feel confident that cars are something I could, and probably should learn about.

I guess I'm wondering what that post means to me as a newbie MS# owner. My car is 2 weeks old and already has 1300 miles on it. I will be putting about 500-600 per week on it. I am very happy with the car just the way it is and I don't really want to mod or add anything at the moment.

However if the issue of carbon build up is as bad as that post makes it seem, that is something i would like to prevent. What can I do without spending a small fortune, adversly affecting my car's performance, or voiding my warranty?


-Pete (glare)

To answer your question, I wouldn't worry about it in stock form...

There are concerns that the vehicle's PVC system is not up to par filtering out oil residue from accumulating in the intake manifold...though Mazda's are known for carbon/oil build up in there intake manifolds.

As a side note, to mitigate this issue in my previous Mazda, I had polished the inside of my intake manifold to a mirror finish.

Anyway, I would not doubt there is some type of buildup occurring in DI type engines, though with the use of a high quality oil and regular on-time maintenance, you should have no worries... Plus, the car/engine needs to be ran at max here that there just to keep her internals clean.

I wouldn't worry...plus you got the new car warranty just in case...make sure not to mod it if you want to keep that intact.

Don't worry about, just go out there and have fun with your new car!!!
You will come across scarier threads out there of engine's blowing up... (lol2)

 

[Betelgeuse]

Back to the one redline a day keeps the carbon away. Had a rx7 and heard this too many times.

+1

Drive it hard and fast! That nice puff that comes out back when it's floored is actually good for it.

 

[cheetah2k]

Mazda has tuned these cars to run rich. Thats just life and pretty typical for a turbo car.

Every 3 MPS I've seen in the Oz club in Queensland Australia has the black deposits. Mine had them too, until i swapped out the exhaust, installed a turbo back twin dump pipe system, Xede engine management and cold air induction. Now days, i hardly get any black carbon, plus the engine management system has leaned it out just a little...

 

[nhluhr]

+1

Drive it hard and fast! That nice puff that comes out back when it's floored is actually good for it.

Yeah that keeps carbon from building up in the combustion chamber and after (like in the exhaust manifold) but it does nothing for the intake tract where traditionally there was a bit of fuel to rinse off the tops of the valves, etc.

The Guy who posted that though seems to think that the fuel comes from much higher up the intake track but it doesn't. Most modern cars that are not Direct-Injection just inject the fuel immediately above the intake valves so there isn't much cleaning action going on there anyway.

The best way to clean your intake tract is with seafoam or by removing pieces that are easily removable and just rinsing them out with a mixture of SimpleGreenAutomotive and water. It wouldn't hurt to do this every 10-150000 miles. Do not use fuel system additives like the bottles of Techron. They simply are not necessary, as modern fuel contains all the detergent and solvent additive it needs.