Question about 2003 Mazda Mazda6

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I have a mazda 6 diesel breathing heavy out of rocker cover pipe to air intake,its not smoking excessivly but oil is gathering in intercooler can anyone help

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Posted on Jan 02, 2017

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SOURCE: mazda 6 timing marks

You are all fuckin thick. ask a question on here and get answers like this ********

Posted on Nov 06, 2008

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SOURCE: Cold Air Intake - Mass Air Flow Sensor Adapter

i have a 91 mx6. the intake is all cattywompus and im just goin to take a piece of metal and tube and cut a hole in the peice of metal and weld the tube to it take my stupid box out and run that pipe staight to a coupling and then to the cone air filter. BAM!!!! problem fixed... i maight be able to fix yours too... e-mail me ajjordan64@hotmail.com. k?

Posted on Apr 16, 2009

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SOURCE: gray smoke

your turbo may have blown

Posted on May 31, 2009

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SOURCE: mazda 6 diesel wont start

Have you run the car without fuel? There must not be any air in the fuel line... Blead the fuel line of air and try to start it. There should be bleader screws under the hood....

Posted on Jun 13, 2009

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SOURCE: There is oil in my 2004 BMW 320d return pipe from

simple. the trubo bearing/seal (probably more the seal) is stating to go and that is leaking oil into the return pipe. take pipe off and have a look at the turbo and see if you can see any oil leaking from inside of it. also oil in the intercooler = bad clean out after fixing the turbo = use solvent or something to dissolve oil but make sure you let the intercooler dry out before re-installing it

Posted on Jul 11, 2009

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Mazda B2500TD 97model l have problem with oil


You have excessive engine breathing/pressure. When you did the overhaul did you replace the rings etc and deglaze the bores because excessive crankcase pressure is your problem and its forcing the oil down the breather pipe. Poor valve guide stem seals is another area.

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Leaking of any fluid is not normal. The only time any fluid should expel from the car is if you have overfilled something. Your turbo could need replacing, you could have a hole in the intercooler. Have you noticed any lack of performance or extra smoke...

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There is oil in my 2004 BMW 320d return pipe from the intercooler to the intake manifold and smoke when started.


simple. the trubo bearing/seal (probably more the seal) is stating to go and that is leaking oil into the return pipe. take pipe off and have a look at the turbo and see if you can see any oil leaking from inside of it. also oil in the intercooler = bad clean out after fixing the turbo = use solvent or something to dissolve oil but make sure you let the intercooler dry out before re-installing it

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1994 Suzuki Vitara V6 H20A Engine smoking intermittently from exhaust


I have a Mazda which in Australia (here) is called a 323 Astina, overseas a 323f, Familia, etc.
It uses a 2.0L Mazda KF Engine very similar to (in fact co-developed with) the Suzuki H20A engine, except designed to be transverse, variable resonance induction and other different tuning inc. 7000 redline, and probably not as reliable as an H20A.
I've had the engine rebuilt because I want to keep this car for a while and it needed it. Oil slipped past the rings which burned out grooves on one of the exhaust valves on Cyl-6 to the point where that cylinder had no compression...
... but I still get smoke occasionally, as you describe yours except not as often nor on the open road at speed. It happened ever since the first time I changed the oil after the rebuild. The tech who rebuilt it used a grade of oil I couldn't find and, liking synthetics, I used a lighter oil.
About the time you were writing your message, I replaced the rubber intake pipe feeding the throttle body and I noticed the inside of the intake manifold lined liberally with oil. The old pipe had oil only at one end.
The pipe I replaced didn't just go from the air mass sensor on the filter box to the throttle body. There was also a large pipe to an air reservoir (a lengthy pipe sealed at one end so that if you open the throttle quickly, you don't have to wait for more air to be filtered before it enters the engine, supposedly) and a tiny pipe to PCV valve.
It's not a long pipe so it's easy to look inside. The reason I'm boring you with all of that detail is because you'll almost certainly have a different one, but this is still most probably something you'll find feeding your intake manifold a supply of oil. The PCV (Positive Crankcase Ventilation) valve runs from one of the rocker covers (not that we have rockers) into a pipe feeding into this intake pipe. It's supposed to **** air in from the intake pipe due to a vacuum created by another pipe connecting from another part of the crankcase to the intake manifold (after the throttle body so it has a lower pressure than the intake pipe) and that might be happening in my engine but oil is, or was before the rebuild, seeping back into the intake pipe.
Being a transverse version of your engine, the PCV valve is on the front bank and the pipe from it to the intake pipe is quite short. The PCV valve is also situated above (if I remember correctly) a cam lobe so at higher revs, the oil gets flicked up into the PCV valve.
... so use an oil which is thicker at high temperature, do a compression test, or as I'm considering, run the pipe from the PCV valve into a canister to catch the oil before feeding the gasses into the intake manifold. That way less of the thinner oil will be burned off and I'll have a better chance at getting away with using it.
I use 15W40 Oil - viscosity of 15 weight (units?) when hot, 40 in Winter (which the W stands for). I should use 20Wxx, perhaps, to burn less oil.
This engine likes thin oil, it just goes on to liking it enough to inhale it. This engine also likes higher revs.
Hope that helps.

Jul 31, 2008 | 1999 Suzuki Vitara

1 Answer

Cause and solution


sounds like one of the oil breather pipes is bloked wich will cause oil to feed to the cylinder wich will cause smoke and uneavan running wich will cause the car to **** when standing. take off all breathing pipes main ones come from the rocker covers clean them and put them back. the main engine breather will come out of the engine block do the same.

Jun 17, 2008 | BMW 750 Cars & Trucks

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