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yhattori
post 11 Jan 2013, 20:01
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salut!

aM un Logan 1.5 DCi si daca-l turez in sarcina (sa zicem o repriza 60-120 in 5-6 secunde) si apoi ridic brusc piciorul de pe acceleratie scoate un sunet ca un gifiit/fornait FU-FU-FU-FU (sau AH-Ah-AH-AH, depinde de ureche) ce pare sa vina din compartimentul motor.

e normal?

are cineva idee ce poate fi?


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P-A-C-O
post 11 Jan 2013, 20:12
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zgomot de "decharge turbo" - wastegate


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yhattori
post 11 Jan 2013, 20:28
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adica?


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P-A-C-O
post 11 Jan 2013, 20:32
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zgomotul produs de presiunea gazelor de evacuare in momentul deschiderii WG-ului.... totodata poate sa fe o problema si la turbocompresor; cati km are motorul respectiv?


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yhattori
post 11 Jan 2013, 20:50
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Motorul are aprox 50000.

Da' totusi de ce s-ar deschide wastegate-ul cind iei piciorul de pe acceleratie? Parca erea fix invers, se deschide cind o calci.


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freelancevoyager
post 11 Jan 2013, 21:14
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are orgasm motorul dupa sunete...hahahaha


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Speedy
post 11 Jan 2013, 23:29
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QUOTE(yhattori @ 11 Jan 2013, 20:01)


sa zicem o repriza 60-120 in 5-6 secunde



radmasa.gif sigur e logan?


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nikuniku
post 11 Jan 2013, 23:42
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(yhattori @ 11 Jan 2013, 20:01)<sa zicem o repriza 60-120 in 5-6 secunde> daca are asa ceva sub capota este posibil

This post has been edited by nikuniku: 11 Jan 2013, 23:43

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P-A-C-O
post 12 Jan 2013, 08:33
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QUOTE(yhattori @ 11 Jan 2013, 20:50)
Da' totusi de ce s-ar deschide wastegate-ul cind iei piciorul de pe acceleratie? Parca erea fix invers, se deschide cind o calci.

cand o "calci" turbina trebuie sa fie inchisa a.i. energia gazelor de evacuare sa antreneze paletii de la turbo care la randul lor, sa antreneze paletii de la compresor, marind presiunea de supra-alimentare....
wg este un fel de blow-off valve, cu observatia ca WG este pe evacuare si BOV este pe admisie

sigur ai verificat traseul de supra-alimentare sa fie etans (furtun spart, intercooler spart, etc)

PS: ai cheap-tuning pe masina cu marirea presiunii de supra-alimentare?

LE: pentru a intelege mai bine fenomenul: Mecanica fluidelor

This post has been edited by P-A-C-O: 12 Jan 2013, 11:12


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yhattori
post 13 Jan 2013, 09:14
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am verificat cu wastegateul anulat si face si mai rau.

admisia e etansa mie-n suta, am vefrificat cu apa.


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P-A-C-O
post 13 Jan 2013, 10:44
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sa n-ai problema cu electrovana pilotaj turbo sau chiar cu capsula de la WG.... pe tester ai pus-o, ce zice?


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yhattori
post 14 Jan 2013, 13:30
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am pus-o azi, zice doar "1602 - RR muffler bearing overtemp"


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