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MAN TGL 12 250 probleme pornire

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Am o duba de 12 to MAN TGL din 2012, motorul de 6,8 L, care imi face probleme la pornire

Mai exact, daca sta peste doua ore nu mai porneste decat daca fac presiune din pompa de alimentare manuala. Se simte ca nu are presiune si se aude supapa de refulare din pompa de injectie abia peste 15 - 20 actionari ale pistonasului ( atunci se si simte rezistenta in actionarea pompei)

Am pus binenteles supapa de sens pe conducta admisie motorina ( chiar doua), dar am facut un experiment cu furtun de alimentare tras intr-o canistra si se vede ca nu imi prinde aer pe admisie...

De aici deduc ca imi scapa presiune pe retur undeva. Din injectoare sau common rail ... Ati avut cineva probleme de genul asta?

Interesant e ca daca am rezervorul plin imi porneste motorul si a doua, a treia zi.


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