Bmw e90 320i N46B20 Engine Strokes between 1200-3000rpm Post Sea Trip: Diagnosis and Experience

Question

Hello, gentlemen, the problem began in my e90 320i N46B20 in my room two weeks ago after leaving the sea distance of 600km after parking and re-ignition, you can hear metal bands under the cover between turns 1200-3000rpm I will add the most gas after gasification after even gas much less....

piotreks86 · Accepted Answer

In the second and third photo I see a piece of broken spring vvt under the exhaust shaft: o

piotreks86 · Accepted Answer

Thanks. I will buy some for sure because I changed the oil yesterday and withheld the filter. I was still thinking about Simot.
What is the advantage of K & N over other brands in addition to the company?

So that there is no OT, there is no flow in the N46 engine in the E90 model, so the use of such wet filters is safer than in flow cars.

chiqi · Answer

Are the adaptations deleted?

Saimon46 · Answer

I do not know, but I will ask you tomorrow and ask if you can explain what these adaptations are and when I do it I live in Spain so I will go to the Dealership tomorrow and I will ask. I will add that the zero revolutions engine works smoothly on 7L 110- 140km / h zero problems with firing the perfect power

karp23 · Answer

probably a shaft on the shaft

Saimon46 · Answer

I do not really know where to start compressing the engine ... I have no idea if I can drive it?

sebap · Answer

I would not risk it. Was not it the problem with the head lubrication in these engines?

Saimon46 · Answer

Damn I wonder if it did not affect that on the same day I put a KN filter maybe too much air gets stupid

chiqi · Answer

If you're old, try to put on an old one edit:

Saimon46 · Answer

And tell me this thing, whether the vacum pump can wear with gas, because when I open the oil stop I have a dull knocking

Saimon46 · Answer

Well, there is a diagnosis from the vacuum pump that dzyndzel flew what goes into the fight tomorrow new Pierburg pump new oil 5w30 Motul filter and see Mechaniol friend Moroccan says he does not see anything there is a fight valve says how tomorrow ufff I will write 3 pics .

helmud7543 · Answer

Adaptations are adjustments to the factory dosing maps of the fuel and air mix. They are made when there is a suspicion that they have disappeared. The vacum pump may also knock, although the description fits the pan - you are lucky. These engines were not really blurred on the shaft. Worse as valvetronik is falling apart - renovation here will be expensive and it is a typical fault of this engine. The engine has the right to work badly after opening the oil plug (depending on the engine - drop in speed, increase in speed, knocking) - finally the left air gets.

Saimon46 · Answer

Well, the problem was solved by colleague Piotreks86, he noticed that one of the four springs snapped and from this place I started setting 4 new Motul 5w30 oil for the complete timing and the Ceratec LM filter and KN air filter ... believe me not auto change the work of accelerating the voice 180 degrees !!!!

piotreks86 · Answer

Well, that's the problem. In my VVT I mentioned the servomotor and the shaft with cams which were not the worst, but I did it when replacing the suction shaft which was worn on 1 cyl.

What filter did you put on exactly? Is there a difference in the engine work / sound?

Saimon46 · Answer

The filter is the KN E2021 I recommend to anyone without fairy tales to feel the differences more willingly rides and sounds more racial

Saimon46 · Answer

Ok, as I have already pIsalem, the problem is over, so I close the topic.

[Solved] Bmw e90 320i N46B20 Engine Strokes between 1200-3000rpm Post Sea Trip: Diagnosis and Experience

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