Ardere bujii foarte repede

Salut !
Am un opel astra 2001-Y20DTH si acum doua luni i-am schimbat bujiile.Era una arsa.Acum s-a ars iar una din ele.Care este cauza de se arde asa repede? Am avut Champion.Multumesc.

Totusi mie mi s-a ars una din cele 4 NGK schimbate acum vreo 2 ani dupa un drum intre Bacau-Bucuresti noaptea facut noaptea cu viteze mari 130-170 ,am observat a 2-a zi la pornirea la rece martorul de emisii aprins;poate a fost o coincidenta ,nu stiu sigur
La mine se aprindea martorul de emisii dupa pornirea la rece si nu se stingea decit daca opream si reporneam motorul dupa ce se mai incalzea.
S-a desfacut usor cea defecta,nu era deformata,arata foarte bine, ci doar ca in loc de cca 0.5 ohmi avea cam 700 ohmi
Merita verificat releul,la asa curent mare se pot duce sau lipi contactele si apoi bujiile;daca nu asta e cauza,poate a fost bujia slab facuta.
Aparatele 'cad' mai mult in prima parte a 'vietii',defecte de fabricatie de obicei acoperite de garantie, si apoi in ultima,dupa ce si-au 'trait traiul'


Ultima modificare făcută de 1.7dti_edition2000 la Lun 20 Nov, 2006 12:55 am, modificat de 2 ori în total

multumesc pentru sfaturi si mai as avea o intrebare: daca merg un timp cu o bujie arsa poate cauza ceva?

nici o problema-pornire greoaie si te va stresa martorul un min. si jumatate dupa prima pornire.

1))Normal: Grey-brown deposits, lightly coated core nose.Plugs ideally suited to engine, and engine in good condition.
2))Oil Fouling: Wet, oily deposits.
Fault: Worn bores/piston rings or valve guides; sometimes occurs (temporarily) during running-in period.
3))Heavy Deposits: A build up of crusty deposits. Light grey sandy color in appearance.
Fault: Often caused by worn valve guides, excessive use of upper cylinder lubricant or idling for long periods.
4))Overheating: Electrodes have glazed appearance; core nose very white - few deposits.
Fault: Plug overheating.
Check: Plug value, ignition timing, fuel octane (too low) and mixture (too lean).
5))Lead Glazing: Plug insulator firing tip appears yellow or green/yellow and shiny in appearance.
Fault: Often caused by incorrect carburation, excessive idling followed by sharp acceleration. Also check ignition timing.
6))Electrode Damage: Electrodes burned away. Core nose has burned glazed appearance.
Fault: Pre-ignition.
Check: Correct heat range and as for "overheating", above.
7))Carbon Fouled Dry, black, sooty deposits.
Fault: Over-rich fuel mixture.
Check: Carburettor mixture settings, float level, choke operation, air filter.
)Split Core Nose: (may appear initially as a crack).
Fault: Detonation or wrong gap setting.
Check: Ignition timing, cooling system, fuel mixture (too lean).[/url]

sry nu am citit tot postul...incercam sa fiu de ajutor...poate celor care citesc si au motoare pe benzina....

Salut.am si eu un astra g hatchback 1.6 benzina 2001.sunt la al treilea rand de bujii in 600 de km plus mi s-a aprins martorul de la convertorul catalitic si a inceput sa manance totodata si ulei...cam 1 l la 400km...toate odata...care ar fi cauza?