brera 2.4 jtdm unusual sound from the turbine [file included]

[ago27]

lately I have had many negative experiences with the turbines, the first slit on the road right of the oil in the intake, I had to remove all hoses, intercooler, intake manifold, and clearly the crowd, washed everything with the gas several times to remove all the oil and the impeller of the crowd that had crumbled and slipped on the apertutto, I mounted a crowd regenerated from the same brand a KKK that from the beginning I noticed that whistled darn gunpoint until after 4000 thousand kilometers broke this (this is the oil me throw it out from the drain without inbrattarmi half the world) luckily it was still under warranty, and after the council of he friends here on the forum, I give the shop a garrett at the place of the kkk, which has a slight whistle but I think it fits in the standard.......

[tidus1985]

For prevention here do I mount a turbine, I always do a dry oil in the lubrication circuit with a blower from 1 bar that I have the car built in that free of any impurities? and do 2 schiavettate the power to purge a bit of oil that may have residues corboniosi, then the horsemanship, the other 2 sxhiavettate to fill the circuit and go and never had a problem, the current turbine 150, which I mount on the 120 hp is a slight whistle from 0.1 to 0.4 bar only cold, which then attenuates much when the oil is heated, what more? that normal

[ago27]

in fact, my behaves in this way, in the cold, whistling slightly then as it warms up it feels less...

[tidus1985]

the 1.9 are famous for a slight howl of the cold, but up to 0.3 0.4 bar, as well as the part with the push to chill and then, however, over the covers, the noise of the air sucked by the impeller

[sighline]

Thanks to all for the answers..
Munro, the filter circuit of lubrication, and it was checked when I changed the turbo

Yesterday I was in the shop and I did remove the precat and the sleeve turbo-IC ( it was a bit fesurato saw that he was touching a bolt of the form of the turbo)
I did 20 euro of blue diesel smoke and it's gone .. in spite of this, the whistle still persists..

I realized then , that smoking is neither a result nor the cause of this whistle...

Having checked all the points 'critical' that could cause the whistle the only place to be reviewed, and the tube luca stanca .. which according to me it was mounted wrong

Also because I started to feel 'I'm whistling at a time when I've removed the fap.. then turning with the straight tube

[blackwolf76]

I I were you I formalizzerei too if you've checked all of the system. I know of a car of our customers in the workshop that whistle from the na life and are not ever stops.

So much to say lately I ? happened na croma 150 that has had problems with the swirl, so I had to remove both manifolds, intake and exhaust, and then also the turbine that I have checked and verified in all its parts do not observe any anomaly, at least from a visual point of view. In the context I also defappato and increased a bit of horses and I can tell you that whistled before smontassi and whistles is still very evident even with the engine at idle sometimes, and in spite of all traveling that ? a pleasure without any worries of several thousands of KM.

According to me what type of whistle ? caused by some slight ripple of turning the turbine, or by the blades of the geometry adjust evil that create a flow of air crash that does effect a whistle, accentuated by the removal of the Fap that attutiva substantially the same whistle...