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

[sighline]

Hi there we had heard via **** for the problem if you remember at the time I told that could easily be the exhaust manifolds that were inbarcati even before that I would change the turbo. Know anyway ? a lot of work to do the seal of the manifolds. Strange anyway that sost the turbo have not disassembled the manifolds ???

hehe hello dear , of course I remember you removing the turbo have only detached from the manifold.. leaving intact then the side of the head (the part with the studs)

[blackwolf76]

If you have the collectors to bleed, you should find the nuts on the studs lenses, or how can I ? happened several times even someone ? broken in the head, and then not tightening the manifold to the cylinder head, and may bleed and blow the whistle, even if you should hear it at high revs and not to low.

The vent of the tube ? normal... don't worry about that, in case you do not close the geometry and the car is to low it should be like the na One diesel...

[thekid]

if the prisoners of the manifolds are broken ? also need to clear the manifold as baggage.
This work I did on a brera always 2.4 little more? a year f

[sighline]

Will update : I was wrong to the high regard that the exhaust manifold.. Yesterday I removed the cover, turbine, and I saw that all 10 of the prisoners are in place.. asciuti .. no trace of oil or soot
to better understand the situation I studied the map, limiting the turbo pressure and by changing the opening of the geometry
1a test (turbo limited to 1 bar ): no whistle at full throttle is to low to 5000 rpm
2nd test (no limit, but the opening of the geometry set is not in proportion to the pressure required) then I did the changes in full acceleration from 1.5 bar drops to 1.3 and then it goes back to 1.5x then back down to 1.3 and I noticed that the whistle has become periodic , then whistled only when he went up the gauge
in this way, I realized that the whistle is nothing other than the turbine or sleeves
It could also be the bypass valve that is malfunctioning and/or an overboost valve ( also called a converter pressure )
Since this forum is dedicated to ecu tuning, and then my problem does not fall under any of these sections,I tried to ask for help on the 159owners and I've been sent away after the first message on this forum seen their regulation that prevents participate on the forum if one has the machine and/or units changed ( that*******!!!)

Today I got the pipe downpipe bought it on ebay ( to put in the place of the prekat) Monday I'm going to mount it and then you will see if it is the prekat whistling

[cicciocar]

according to me ... this whistle that you hear ? normal... my golf 4 gti 150cv he began to do after that I deleted the egr...

[ago27]

I took off completely the catalyst to my old golf 4 and beginning to whistle enormously, but I had more extension on the road, so according to me and a question of the exhaust...

[munro]

unfortunately for sighline that whistle of his car ? for anything normal.....
that car,and they know that in a few,in the fitting that carries the lubrication to the turbo port, a filter, so as to prevent the turbine to arrive debris or anything else....now, since not the s? almost none of the presence of this filter many mechanics are equipped with the above-mentioned fitting without check if the filter inside, affixed or less.....
then probably the connection-the filter of the car sighline sar? already the middle clogged and the crowd gets a little olive oil and then the turbo blows that way because l? starved of lubrication, right....
the problem is now ? changing in said fitting now the omelette ? made...
the cio? the bushings and shims bronze or better bearings seen that ? a gtb inside the turbo are now parties then the problem is not solved...if not changing the turbo....
anyway, I hope that I am wrong...because from what I understand the crowd ? warranty....but in cases like this,the incompetence of the assembly,the same does not guarantee the replacement.....

[tidus1985]

munro, but the filter ? inside the pipe or in the first step of the one-piece?

[ago27]

I rest the idea he there or to the manifold which is deformed or muffler saw that smell of diesel in the cabin. The fact that it is dry does not mean anything, you have to see if and clean or dirty...

[blackwolf76]

The filter is located in the fitting that connects the hose to the engine block.

I for prevention every time that I have to disassemble some of these the remove always, by fitting a simple fitting diesel with holes larger scope unlimited. In this case, the lubrication ? assured, and certainly that type of problem is not the avr? pi?. Although lately I've been unfortunate in a connection like ? finished a piece of motorsil left in the engine from somewhere? those who which to me anyway is quite fitting and ruined na turbine of a 147 140cv.