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Scenix RX4, Probleme tractiune fata.

Costykarcher
post 18 Feb 2017, 19:46
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Salut salut la toata lumea. O data cu achizitionarea unui RX4 m-am inscris si eu aici si poate cineva ma lamureste si pe mine, nu mai cupleaza fata la RX-ul meu, trage decat spatele.... De ce?


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johan
post 18 Feb 2017, 20:14
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Tractiunea pe fata este standart iar pe spate intra numai atunci cind rotile din fata nu au aderenta.

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Costykarcher
post 18 Feb 2017, 20:56
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Da mi-am dat seama ca tractiunea fata e prima care actioneaza dar la mine nici nu are tendita sa invarta. Am saltat masina pe un elevatorsi tot la fel invarte decat spatele. Marti o duc la mecanic dar vreau sa ma pregatesc psihic. Precizez cutia nu caraie, nu maraie doar ca zici ca merg cu un BMW trage spatele.

18 Feb 2017, 21:01:
Oare nu a mai patit nimeni de aici asa ceva? Ma duc cu gandul la cutia de viteze dar totusi am ceva indoieli ca ar fi ea de vina.

This post has been edited by Costykarcher: 18 Feb 2017, 21:01


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johan
post 18 Feb 2017, 21:20
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Posibil diferential fata sa fie defect.
Diferentialul pe spate nu cred ca este conceput pentru viteze mai mari de 50 km/ora


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Costykarcher
post 18 Feb 2017, 21:23
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Sper sa nu fie asa de grav.....mai astep sugestii si pareri. Multumesc johan...

18 Feb 2017, 21:25:
Adica la peste 50 km/h sa nu mai cupleze spatele, am mers si cu 120 asa cum e acum

This post has been edited by Costykarcher: 18 Feb 2017, 21:25


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johan
post 19 Feb 2017, 08:57
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Interesant !

Cum se comporta la viteze mari numai cu tractiunea spate ? Se simt vibratii sau se aude zgomot in spate la diferential ?
Cutia de viteze schimba normal fara probleme ?


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Costykarcher
post 19 Feb 2017, 14:27
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Sa stii ca la viteza se simnte cardanul cum se invarte si cred ca e si normal atata timp cat toata puterea e repartizata pe spate dar nu e un zgomot invernal, doar daca esti atent se aude si de vibrat nici nu se simnte. Cutia de viteze merge f bine, schimba toate treptele.......e ok cutia. Cred ca ai dreptate sa fie diferentialul fata si asta se afla in cutie. Dar am inteles ceva si de niste electrovalve de cuplaj sau ceva de genul.

19 Feb 2017, 14:31:
Daca nu stii ca trage decat spatele nici nu ti-ai da seama ca nu e 4x4 doar ca in demaraj se ridica un pic de fata, ca orice masina cu tractiune spate.

This post has been edited by Costykarcher: 19 Feb 2017, 14:31


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johan
post 19 Feb 2017, 14:33
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Oricum este ceva inedit !
Este totusi curios cum de a ramas viscocuplajul blocat ca sa functioneze tractiunea spate continuu.
Ai cumparat masina cu aceasta problema sau a aparut pe parcurs ?

This post has been edited by johan: 19 Feb 2017, 14:46


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Costykarcher
post 19 Feb 2017, 16:25
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Cred ca la mine s-a stricat, cand am luat-o a mers ca am urcat cu ea pe undeva pe drum tara cu inclinatie mare zi a mers


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johan
post 19 Feb 2017, 16:41
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Este posibil ca viscocuplajul sa fi fost ramas blocat de mai mult timp, asta inseamna si consum mai mare si poate de asta a cedat diferentialul fata.


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Costykarcher
post 19 Feb 2017, 19:49
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si asta inseamna ca trebuie sa schimb cutia de viteze?



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johan
post 19 Feb 2017, 20:36
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Nu cred, diferentialul cred ca se demonteaza de pe cutie . Am vazut diferential de vinzare fara cutie pe ebay.
Trebuie sa ai un mecanic cu experienta care sa verifice si viscocuplajul. Cutia de viteze ai spus ca functioneaza perfect asa ca nu are rost sa o inlocuiesti.


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Costykarcher
post 28 Feb 2017, 22:21
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Am reusit sa rezolv problema cu tractiunea la RX4. Nu a fost nevoie de o alta cutie,la planetara din stanga la cutia de viteze are o siguranta si o saiba(exact ca la logan) si erau duse,siguranta iesita si saiba rupta si automat cutia invartea in gol...... Am scapat ieftin smile.gif


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johan
post 28 Feb 2017, 22:50
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Ai avut noroc !
Totusi cum de a ramas cuplata tractiunea spate ?


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Costykarcher
post 25 Mar 2017, 14:25
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Salut.....cuplajul ala smecher simntea ca patineaza fata si de asta cupla......ai la procentaj maxim.
Propriu zis asa se intampla, cuplajul are legatura cu planetara nu cu cutia, in cutie se invartea planetara dar ne avand siguranta se invartea in gol.....


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johan
post 25 Mar 2017, 14:41
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Este un caz unic care demonstreaza ca diferentialul spate la RX4 poate rula la viteze peste 100 km/h fara probleme majore. (atit timp cit nu are pierderi de ulei)


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lik rx4
post 8 Apr 2017, 08:33
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Salutare, sper ca ma poate ajuta cineva cu un sfat. Am un RX4 2.0 16v, saptamana aceasta am demontat cardanul de pe masina , am vrut sa-l las sa se ''dihneasca"', dar a aparut o problema la rularea fara cardan, dupa 60-70km/ora incepe sa vibreze ceva la puntea spate si daca accelerez face tot mai tare. Ati intalnit asa ceva? deobicei se intampla cand e cardanul montat... parca.


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johan
post 8 Apr 2017, 12:45
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Este posibil sa ai probleme la grup sau diferential, care nu s-au manifestat datorita cardanului montat.
Am mers si eu o perioada de timp fara cardan dar dupa ce m-am documentat mai bine am inteles ca nu este recomandat.

Citat :

" I have long wanted to make a record about the castration of Rex. The theme is ambiguous, but I think many owners about this Flash of thought.

So, I am not going to stop now on what you need it or not. And I will try to describe how all do everything correctly painless and does not hurt. So, if you are going to fold rear-wheel drive, how to do it correctly!

Rear transmission consists of a shaft gearbox, drive shaft, viscosity also clutches, gearbox axes. Some components have been deliberately omitted, since in this context they are not relevant.

Why not just remove the cardan and further exploit auto next?

-If we are talking about a hundred other kilometers dreaded nothing will happen, but in the long-term operation of the first die viscosity coupling:
— \ clutch is essentially the same axle divided in half. During normal operation, in \ coupling Act approximately equal strength. When we remove the cardan shaft, rotate the rear wheels clutch \, but point by the PPC is not, for that reason, \ mutfa is constantly in a State of podklinev¹em (inertial forces, braking, acceleration of gravity). That after long-term use leads to the entrance of a failure in the latter.
Another point about the \ mutfty is her bearings, two of them. When removing the shaft a lot of dirt flying at first, from which he quickly dies. It is also worth noting that when removing the shaft, a small axis offset down and to the bearings operates additional load;
-gearbox when removing the shaft, \ clutch provides additional load on the shank of the gearbox, which dramatically increases load on its bearing; in principle, other problems with gear, when installed in the \ coupling will not. But if we remove the \ clutch, gearbox gradually leaking oil through oil seal shank so the latter clamped in \ clutch. Leaking oil not strong, moreover does not begin immediately, which leads to the gradual draining of the gearbox and his assassination;

from all of the foregoing, it follows that the only valid way to disconnect the cardan transmission removal is complete.

It is worth to note that when removing gearbox will need to remove the driveshaft, garnets where ABS ring and they attach the wheel to the hub. Therefore, you should think in advance or on other garnets or, that have to disassemble your own CV joints."

Sper sa ajute aceste informatii.

This post has been edited by johan: 8 Apr 2017, 12:47


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lik rx4
post 8 Apr 2017, 23:27
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MS mult Johan, luni montez cardanul, sper sa nu raman cu vibratiile.


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Costykarcher
post 10 Apr 2017, 14:32
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Eu nu pot sa inteleg, daca ai vrut masina 4x4 de ce ii dai cardanul jos?


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lik rx4
post 10 Apr 2017, 17:12
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Dar nici nu vreau sa ma intelegi, eu am cerut o parere la o problema aparuta, daca ai ceva de zis cu referire la ea, te rog , daca nu, treci cu vederea.

This post has been edited by lik rx4: 10 Apr 2017, 17:13


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Costykarcher
post 10 Apr 2017, 18:13
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Uite ce cred eu ca s-a inamplat,RX-ul nu e prevazut sa mearga fara cardan. Normal ca trebuie sa fie o diferenta cu cardan si fara cardan.. Grupul de pe spate e invartit si in acelasi timp centrat de cardan si fara el nu se mai invarte rulmentul rotund.


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lik rx4
post 10 Apr 2017, 19:22
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dar cunosc cateva persoane care au rx4 si de cativa ani merg vara fara cardan si nu au avut probleme, momentan.


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Costykarcher
post 10 Apr 2017, 19:33
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Pai nici tu nu ai probleme din cate spui, doar zgomotul.....Sfatul meu e sa il montezi la loc chiar daca mai de vreme am fost cam dur cu tine. Mare economie nu faci fara cardan.


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johan
post 10 Apr 2017, 21:58
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Din experienta proprie :

am mers anul trecut in vara aproximativ 3000 Km fara cardan fara diferente notabile (consum sau vibratii) . Dar din pacate am prins un traseu pe drumuri de tara dupa ploaie si am reusit sa raman impotmolit in noroi ,fara tractiune 4X4 nu am reusit sa ies decat tractat.
La intoarcere am fost nevoit sa schimb bieleta antibasculare motor (la accelerare sau frana de motor se balansa schimbatorul de viteza implicit motor)cred ca lipsa cardanului a reusit sa o deterioreze.
Asadar dupa ce m-am documentat asupra principiului de functionare (am scris anterior un citat in engleza) am decis sa montez cardanul si sa nu-l mai demontez niciodata. Cred ca ajuta totusi la o durata de viata mai lunga a suportilor motor, cutie de viteze si grup spate (diferential).

Ramane la latitudinea fiecaruia ce decizie sa ia.


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lik rx4
post 11 Apr 2017, 20:03
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Costykarcher, daca citesti cu atentie postarea mea initiala, vezi ca a aparut o vibratie nu un zgomot.
Si am rezolvat problema, am montat cardanul si nu mai vibreaza. Dar nu e normal sa vibreze fara cardan, atita timp cat altii merg fara.


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muscamore
post 25 Nov 2017, 15:40
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Cred ca se mai demonteazã ceva in afara de cardan ca sa meargã...ar trebui intrebati

This post has been edited by muscamore: 25 Nov 2017, 15:41


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