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> M20 la rece
xox
post Oct 29 2012, 11:29 AM
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A mai patit cineva la M20 de cand a dat frigul sa vibreze motorul la relanti? L-am remarcat zilele astea, inainte nu facea deloc asa. Relantiul nu fluctueaza.

Bine, nu-s 100% convins ca-i de vina frigul, dupa ce se incalzeste tot mai vibreaza dar foarte foarte putin. Oare la ce sa ma uit mai intai?


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alex230ro
post Oct 29 2012, 12:47 PM
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fise ,bujii , tampoane motor .


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Ciupanezu
post Oct 29 2012, 03:47 PM
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Poate fi si benzina proasta.

Oricum multe BMW-uri pe benzina au probleme cu tremuratul la rece.
V8-urile cel putin sunt cunoscute, dar si pe L6-uri se mai intampla.
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xox
post Oct 30 2012, 01:02 PM
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Fise sau bujii le-am exclus, motorul merge perfect. Tampoane motor... am sa le verific dupa ce o urc pe elevator, nici nu m-am gandit la asta, dar s-ar putea sa fie un factor.

Benzina e de la AutoMat, o pompa automata, habar n-am de unde o cumpara ei. Dar n-am avut nici o problema cu ea, motorul se tureaza frumos, filtrul de benzina era ok cand l-am schimbat deci n-am griji. Plus ca M20 nu-i asa pretentios si dupa cum ziceam, relantiul e stabil si de turat se tureaza ok.

Ar mai fi un factor, ca pute a benzina de-ti muta nasul la teava de esapament :/ Nu pot sa-mi dau seama ce se intampla, chiar asa multa benzina nearsa iese pe acolo? E atat de ciudat.


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bartro
post Oct 30 2012, 02:15 PM
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In functie de temperatura motorului, injectie mai umble la cantitate de benzina injectata (si la avans daca ai motronic). Corectie e bazat pe niste asumptii asupra fel in care arde bezina la o temperatura anume, cat aer intre in motor, avans la aprindere, si ce o mai fi. Daca undeca pe motor ceva nu mai functioneaza in parametrii de fabrica, s-ar putea sa da gres sistemul de injectie la temperari anume.
Cu E32 m-am trezit ca la -16 grade nu mai pornea, dimineata undea langa Fagaras. Cauza, lipsa sonda de lambda si un debitmetru ciudatel. Am avut noroc ca a pornit dupa ce am scos mufa la debitmetru. La -10 nu facea probleme. Dupa ce am remediat defectiuni masina a pornit bine la orice temperatura, fara tremurat sau alte side-efecturi.


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xox
post Oct 31 2012, 09:25 AM
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I-am scos mufa de la debitmetru si tremura mai rau. Dar dupa ce am pus-o inapoi n-a mai tremurat aproape deloc, s-a comportat la fel ca si cand era cald :/

Inca nu m-am prins care-i manevra, oare ia semnal aiurea de la debitmetru sau ce se intampla?


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bartro
post Oct 31 2012, 09:30 AM
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E si ea batrana.. Daca umblii la mufe, poate mai dai acolo cu ceva spray de curatat contacte sau WD40.


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xox
post Oct 31 2012, 11:58 AM
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Exact asta am facut, dupa ce am postat, cand am coborat la ea i-am curatat mufa de la debitmetru cu wd40-ul (i-am luat un tub de 450ml) iar acu' tremura mai putin.

Contacte oxidate probabil. Da' macar e mai "uman" tremuriciu'.


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Ciupanezu
post Oct 31 2012, 03:45 PM
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Spray-ul de contacte e o varianta mai buna decat WD-40 in situatia data.
WD-40, printre altele, lubrifiaza.
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bartro
post Oct 31 2012, 04:20 PM
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Stiu, dar probabil e mai bine decat nimic. Si spray de contacte are dezavantaje, e mai agresiv.


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post Nov 1 2012, 10:31 PM
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QUOTE (bartro @ Oct 31 2012, 04:20 PM) *
Stiu, dar probabil e mai bine decat nimic. Si spray de contacte are dezavantaje, e mai agresiv.



Eu am vrut sa dau o mana de ajutor unui prieten care avea o mufa oxidata la un buton de gaz si ,surpriza, s-a topit butonul de la spray ul de contactePur si simplu se vedea cand ataca plasticul.
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xox
post Nov 2 2012, 11:32 AM
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Nu stiu cum e cu spray de contacte, n-am folosit niciodata. WD-ul chiar daca lubrefiaza e bun si ca sa curate diverse chestii. E un soi de medicament universal, un "panaceu" cam asa ceva laugh.gif Glumesc, isi face treaba. Oricum, incep sa ma obisnuiesc cu tremuriciul si parca dispare si mai repede. Se si incalzeste repede monstrul asta cu 6 cilindri.

In schimb tot miroase a benzina sad.gif



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Adrian Pintea
post Nov 4 2012, 05:51 PM
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la mine miroase a benzina orice ias face din 2008 de cand am masina, avans reglat cu stroboscop si nimic tot asa, a avut 3 debitmetre 2 seturi de bujii fise un set, in totii anii astia si nimic tot benzina dupa tobe, consum 7-8 afara 15 oras, acum de o vreme s-a dus un injector cateodata intrerupe la relanti la semafor dar de tras trage bine


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TiL
post Nov 4 2012, 06:42 PM
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Daca e blocat pe deschis, trage bine smile.gif
Maricel consumul in oras, afara e ok 7-8


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Dobricaliviu
post Nov 5 2012, 03:55 AM
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probabil unul din injectoare nu pulverizeaza cum trebuie , recomand metabond pt benzina , ' megalene '
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Dobricaliviu
post Nov 5 2012, 04:06 AM
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sonda temp , capacul debitmerului este desfacut ? da-i cu un creion"moale" pe carbunele potentiometrului daca are uzura , mai poate fi uzura curelei de distributie , reglaj tacheti si cum am mai zis vreun injector vagabond
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xox
post Nov 5 2012, 09:30 AM
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15-17% in oras imi ia si mie daca merg mai "sportiv". In rest in jur de 12-13% si chiar nu ma deranjeaza, oricum nu merg prea mult cu ea.

Inca una nostima: am incercat sa-mi leg toba inapoi pe loc, s-a rupt urechea originala, cand am ridicat putin toba s-a crapat, curge benzina cu ulei din ea, cred, cu toate astea uleiul e la nivelul normal. O fi doar benzina?


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TiL
post Nov 5 2012, 11:26 AM
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imposibil sa fie doar benzina...


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Adrian Pintea
post Nov 5 2012, 12:37 PM
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Eu consum scot 12-13 doar vara cand sunt plecati studentii acasa si e mai liber orasul, clujul e un oras aglomerat.
Jetronicele astea sunt greu de depanat sa la faci sa mearga bine, in schimb nu te lasa in drum...
Cand mi-am schimbat tot traseul de evacuare si am pus noi, mi-a disparut fumul alb la pornire la rece si vaporii de apa care ii scuipa

This post has been edited by Adrian Pintea: Nov 5 2012, 12:39 PM


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Dobricaliviu
post Nov 6 2012, 08:18 PM
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QUOTE (bartro @ Oct 30 2012, 02:15 PM) *
In functie de temperatura motorului, injectie mai umble la cantitate de benzina injectata (si la avans daca ai motronic). Corectie e bazat pe niste asumptii asupra fel in care arde bezina la o temperatura anume, cat aer intre in motor, avans la aprindere, si ce o mai fi. Daca undeca pe motor ceva nu mai functioneaza in parametrii de fabrica, s-ar putea sa da gres sistemul de injectie la temperari anume.
Cu E32 m-am trezit ca la -16 grade nu mai pornea, dimineata undea langa Fagaras. Cauza, lipsa sonda de lambda si un debitmetru ciudatel. Am avut noroc ca a pornit dupa ce am scos mufa la debitmetru. La -10 nu facea probleme. Dupa ce am remediat defectiuni masina a pornit bine la orice temperatura, fara tremurat sau alte side-efecturi.

la motronic poti regla avansul ?
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