probleme frana, tremurat pe franare, dar nu tot timpul |
This topic is about probleme frana, the author, DRAGOS, wrote about: Bon, de ieri incepand calaresc masina maicamii, un clio 3 1.4 16v, honda fiind in service. Am descoperit o problema, pe care maicamea mi-a semnalat-o ... To read more just scroll down
probleme frana, tremurat pe franare, dar nu tot timpul |
Apr 12 2011, 11:37 PM
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#1
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PGM-FI Group: Membri Posts: 2.877 Joined: 2-March 07 From: Bucuresti/Ploiesti (Prahova) Member No.: 100.675 |
Am descoperit o problema, pe care maicamea mi-a semnalat-o de ceva timp, dar la mine nu s-a manifestat. Uneori apare un tremurat pe franare, dar doar in ~50% din cazuri sa zic. S-a intensificat de ceva timp, cand condusesem eu masina inainte nu a facut deloc in vreo 40km de fataiala prin oras. Azi am dat jos rotile fata si pe stanga am descoperit ca discul arata groaznic si are o lovitura: IMAG0235.jpg ( 1.35MB ) Number of downloads: 41 IMAG0234.jpg ( 1.53MB ) Number of downloads: 36 acum intrebarile: 1.este vreo legatura intre lovitura si tremurat? eu tremuratul in asociez mai degraba cu o uzura inegala a placutelor, nu vad cum ar putea tremura din cauuza discului lovit in muchie. 2. cu discul ala se mai poate face ceva sau e de schimbat de urgenta? -------------------- Honda Accord 2.0 MT Executive Arctic Blue Pearl
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Apr 12 2011, 11:42 PM
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Membru destul de avansat Group: Moderator Posts: 8.813 Joined: 10-October 05 From: Ramnicu Valcea (Valcea) Member No.: 57.984 |
Eu zic ca are de-a face. Pana la urma daca lovitura aia a modificat suprafata plana de franare a discului atunci e normal sa tremure asa. E ca la ovalizarea discurilor. Parerea mea e ca nu mai e bun si trebuie schimbat.
-------------------- Honda Accord 2.0 Executive Premium White
Great minds discuss ideas. Average minds discuss events. Small minds discuss people. |
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Apr 12 2011, 11:46 PM
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#3
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specialist Group: Membri Posts: 3.551 Joined: 15-July 09 From: Costa del Sol Member No.: 120.468 |
Pune discul ala pe un ax si invarte-l cu ceva viteza si o sa vezi ce aiurea face. Apoi o sa-ti raspunzi singur la intrebarea daca trebuie schimbat de urgenta.
-------------------- Skoda, Subaru, Noul Tucson...
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Apr 13 2011, 12:15 AM
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#4
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PGM-FI Group: Membri Posts: 2.877 Joined: 2-March 07 From: Bucuresti/Ploiesti (Prahova) Member No.: 100.675 |
This post has been edited by DRAGOS: Apr 13 2011, 12:16 AM -------------------- Honda Accord 2.0 MT Executive Arctic Blue Pearl
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Apr 13 2011, 12:20 AM
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#5
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specialist Group: Moderator Posts: 2.661 Joined: 27-May 08 From: Constanta Member No.: 117.183 |
-------------------- Kia Cee apostrofee Dee, the former Reasonably Priced Car
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Apr 13 2011, 01:23 AM
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#6
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pilot Group: Membri Posts: 288 Joined: 27-May 09 Member No.: 120.074 |
Schimba discurile, fara discutie. (asta include geometrie obligatorie si echilibrare de roti). La discuri noi sunt necesare macar alte placute daca nu placute noi deoarece ovalizarea discurilor le-a afectat.
-------------------- Subaru Forester 2008
ex Subaru Impreza 2008 ex Subaru Outback 2005 |
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Apr 13 2011, 08:09 AM
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#7
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Super Moderator Group: Moderator Posts: 8.261 Joined: 11-November 02 From: ORADEA Member No.: 7.754 |
De acord cu alias
-------------------- OCTAVIA 1.8T 4X4 - Powered by Dimsport, Milotec, Forge, EBC and Ferodo Racing ! Detalii despre masina mea si Skoda in general pe FORUMUL SKODA-CLUB ! Uneori Dumnezeu ne taie craca de sub picioare ca sa ne aducem aminte ca putem zbura. "What makes you wise in life is not the success, it's when you go down and come back" |
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Apr 13 2011, 09:04 AM
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#8
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specialist Group: Moderator Posts: 13.667 Joined: 30-June 04 From: Europa Member No.: 28.666 |
Avand in vedere ca pretul placutelor e apa de ploaie, si eu zic ca daca tot umbli sa le schimbi si pe alea, manopera oricum e aceeasi.
-------------------- Scuter 108cc... benzina, automat
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Apr 13 2011, 01:19 PM
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#9
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Subaru Anti-Hero Group: Moderator Posts: 5.323 Joined: 13-May 04 From: F 1 World Member No.: 25.368 |
Dat fiindca umbli acolo eu le-as schimba, acum depinde si de uzura lor si de cum se prezinta (ciobite cu gaurele in suprafata de frecare, ovalizate etc).
Dar nu este nevoie sa schimbi placutele daca schimbi discul. Poti sa le si schimbi intre ele, dar ce este important este sa folosesti procedura corecta pt prima utilizare a placutelor de frina. Cu alte cuvinte, trebuie sa le gai intr-un ciclu de frinare agresiva astfel incit sa se depuna un strat de material din placute ...pe disc...iar placutele sa se oceasca suficient incit sa se contureze perfect pe disc. Nu iti fa griji - placutele de frina sint facute sa se toceasca si se vor contura repede pe disc. Doar nu te crede Schumacher in primele citeva zile, sau mai repede chiar - daca folosesti procedura de mai jos. QUOTE Bedding-in Street Performance Pads
For a typical performance brake system using street-performance pads, a series of ten partial braking events, from 60mph down to 10mph, will typically raise the temperature of the brake components sufficiently to be considered one bed-in set. Each of the ten partial braking events should achieve moderate-to-high deceleration (about 80 to 90% of the deceleration required to lock up the brakes and/or to engage the ABS), and they should be made one after the other, without allowing the brakes to cool in between. Depending on the make-up of the pad material, the brake friction will seem to gain slightly in performance, and will then lose or fade somewhat by around the fifth stop (also about the time that a friction smell will be detectable in the passenger compartment). This does not indicate that the brakes are bedded-in. This phenomenon is known as a green fade, as it is characteristic of immature or ‘green' pads, in which the resins still need to be driven out of the pad material, at the point where the pads meet the rotors. In this circumstance, the upper temperature limit of the friction material will not yet have been reached. As when bedding-in any set of brakes, care should be taken regarding the longer stopping distance necessary with incompletely bedded pads. This first set of stops in the bed-in process is only complete when all ten stops have been performed - not before. The system should then be allowed to cool, by driving the vehicle at the highest safe speed for the circumstances, without bringing it to a complete stop with the brakes still applied. After cooling the vehicle, a second set of ten partial braking events should be performed, followed by another cooling exercise. In some situations, a third set is beneficial, but two are normally sufficient. -------------------- Schumi drive it like you stole it !
2005 Subaru Legacy GT ; 2009 Subaru Forester XP ; 2014 Jeep Grand Cherokee |
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Apr 13 2011, 11:24 PM
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#10
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PGM-FI Group: Membri Posts: 2.877 Joined: 2-March 07 From: Bucuresti/Ploiesti (Prahova) Member No.: 100.675 |
f1anatic, cam asa judecam si eu
decizia a fost luata: am comandat discuri brembo si placute ferodo premier. sper sa rezolv tremuratul ca ma dispera. -------------------- Honda Accord 2.0 MT Executive Arctic Blue Pearl
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Apr 14 2011, 12:46 PM
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#11
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ZEUS Group: Membri Posts: 5.581 Joined: 9-March 06 From: Bucuresti Member No.: 70.400 |
ma facushi sa rad cu lacrimi cu lovitura ta cu tot .. aia nu e lovitura asa e discu uita te si la celalalt . la cum arartau discurile trebuiau schimbate , deja vad ca se exfoliaza partea aia de sus . ideea e ca se incalzeau tare si se deformau , de aici tremuratul acela random. fenomenul exact ca la placa de presiuna/volanta la ambreiaj . cand se incalzeste se deformeaza una si iti tremura la plecarea dupa loc.
cand schimbi discurile tre sa schimbi obligatoriu si placutzele. nu se pun cele folosite sub nici o forma ... nu tre sa faci geometrie la roti . This post has been edited by vio: Apr 14 2011, 12:51 PM -------------------- daca as fi cel mai sarac om mi-as lua Skoda sau VW . asa imi permit cel putin un Logan.
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Apr 14 2011, 12:59 PM
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#12
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Alergator de viteza Group: Membri Posts: 3.371 Joined: 19-September 05 From: Craiova Member No.: 56.143 |
Arata rau de tot discurile. Cati km au?
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Apr 14 2011, 01:09 PM
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#13
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PGM-FI Group: Membri Posts: 2.877 Joined: 2-March 07 From: Bucuresti/Ploiesti (Prahova) Member No.: 100.675 |
ma facushi sa rad cu lacrimi cu lovitura ta cu tot .. aia nu e lovitura asa e discu uita te si la celalalt . la cum arartau discurile trebuiau schimbate , deja vad ca se exfoliaza partea aia de sus . ideea e ca se incalzeau tare si se deformau , de aici tremuratul acela random. fenomenul exact ca la placa de presiuna/volanta la ambreiaj . cand se incalzeste se deformeaza una si iti tremura la plecarea dupa loc. tu vb serios ca asa e discul? pe dreapta nu am sesizat asta... mie imi parea lovitura. 40.000 km au. si mie mi se pare ca arata rau de tot, alea de la honda au aproape 55.000, mult mai abuzate si par noi pe langa astea. in fine, am luat azi discuri si placute, maine le montez. -------------------- Honda Accord 2.0 MT Executive Arctic Blue Pearl
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Apr 14 2011, 06:57 PM
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#14
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specialist Group: Moderator Posts: 6.522 Joined: 12-May 04 From: Constanta Member No.: 25.186 |
Si cum ar fi putut discul sa fie lovit de ceva sau cumva?! Ca nu prea se leaga...
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Apr 14 2011, 07:46 PM
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#15
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pilot Group: Membri Posts: 288 Joined: 27-May 09 Member No.: 120.074 |
Si cum ar fi putut discul sa fie lovit de ceva sau cumva?! Ca nu prea se leaga... ... un pietroi...... -------------------- Subaru Forester 2008
ex Subaru Impreza 2008 ex Subaru Outback 2005 |
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Apr 14 2011, 07:48 PM
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#16
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specialist Group: Moderator Posts: 6.522 Joined: 12-May 04 From: Constanta Member No.: 25.186 |
Intre janta si disc? Mi se pare putin probabil pentru o masina condusa in oras
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Apr 14 2011, 08:40 PM
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#17
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Around Group: Membri Posts: 1.476 Joined: 6-November 07 From: Timisoara Member No.: 115.360 |
M-am tot uitat in pozele puse de dragos si sincer nu pot sa cred ca e o lovitura de pietroi/bolovan/bordura. Daca se face zoom pe poze, se vad niste margini perfecte iesite in evidenta de fiecare parte a discului... acolo unde sunt "lovite". Plus ca sunt simetrice Daca era lovitura .. s-ar fi vazut ceva urmari si pe foita aceia de tabla de protectie a discului...
This post has been edited by pmhoria: Apr 14 2011, 08:44 PM -------------------- G,RAV,5,4
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Apr 14 2011, 08:53 PM
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#18
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Alergator de viteza Group: Membri Posts: 3.371 Joined: 19-September 05 From: Craiova Member No.: 56.143 |
Nu e nicio lovitura acolo. Asa este discul.
In schimb arata groaznic. Prezinta uzura mare a suprafetei de contact cu placutele, dar ce ma uimeste e modul cum arata retul discului. Eu am 95.000km si nu arata nici pe sfertul celor de fata. -------------------- |
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Apr 16 2011, 12:29 PM
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#19
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Garfield Group: Moderator Posts: 3.307 Joined: 19-November 06 From: Otopeni Member No.: 92.772 |
Asa este discul
Am scos azi o roata la Yaris si am si eu acel semn, doar ca este mult mai lung. Ca idee cred ca o sa imi schimb si eu discurile cat de curand. Placutele mai au 3-4 mm iar discul 20.65 mm din 22 mm. Minimul este 19 mm -------------------- Toyota Yaris 1.4 D4D
Dacia Logan 1.5 DCI |
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May 19 2011, 04:17 PM
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#20
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PGM-FI Group: Membri Posts: 2.877 Joined: 2-March 07 From: Bucuresti/Ploiesti (Prahova) Member No.: 100.675 |
masina a stat vreo 3 saptamani pe bara, iar luni a primit discuri brembo si placute ferodo premier. tremuratul a disparut.
mecanicul care mi le-a schimbat a zis ca n-a mai vazut niciodata un disc care sa arate atat de rau la 40.000 km... -------------------- Honda Accord 2.0 MT Executive Arctic Blue Pearl
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