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Old 11-30-2019, 03:44 PM   #31
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1 injecteur oui j'avais un doute pour sa que j'ai demander..
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Old 11-30-2019, 03:58 PM   #32
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Regarde la compensation
Le 2 et 3 et dans les choux...
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Last edited by akasa67; 11-30-2019 at 04:17 PM.
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Old 11-30-2019, 06:30 PM   #33
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c'etait l'injecteur ou pas ?? la correction serait pareil pour un prob mécanique
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Old 11-30-2019, 06:34 PM   #34
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Slt

J'ai eu une 308 hdi et après avoir tout demonter, elle a du jeu sur la bielle 3 cylindres et c'est exactement le même bruit.

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Old 11-30-2019, 07:00 PM   #35
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Slt jp ta vue m'a video ben oui j'ai changer l injecteurs..
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Old 11-30-2019, 08:37 PM   #36
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Originally Posted by akasa67 View Post
1 injecteur oui j'avais un doute pour sa que j'ai demander..
c'est pour ca que je t'ai demandé la couleur de la fumée.

une fumée blanche continu = joint de culasse
une fumée blanche par acoup = injecteur.

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Old 11-30-2019, 08:42 PM   #37
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Originally Posted by sadna View Post
c'est pour ca que je t'ai demandé la couleur de la fumée.

une fumée blanche continu = joint de culasse
une fumée blanche par acoup = injecteur.

@+
Y faisait moitier nuit quand je l'ai vue la première fois en tous cas bon à savoir ta vue le bruit on aurai dit une bielle à mon avis l aiguille dans l injecteurs à du péter j'ai pas ouvert pour voir....
Merci sadna
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Old 11-30-2019, 10:07 PM   #38
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Originally Posted by akasa67 View Post
Y faisait moitier nuit quand je l'ai vue la première fois en tous cas bon à savoir ta vue le bruit on aurai dit une bielle à mon avis l aiguille dans l injecteurs à du péter j'ai pas ouvert pour voir....
Merci sadna
Si je me rapelle bien mes cours de meca diesel
le bruit de claquement, c'est du a l'injecteur qui reste bloqué ouvert, le bruit de l'explosion de compression ou l'onde de choc remonte jusque dans le haut de l'injecteur.
l'injecteur agit comme un hautparleur, impossible de trouver la source du bruit sans un stéthoscope mecanique.

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Old 12-01-2019, 06:12 AM   #39
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Originally Posted by akasa67 View Post
Slt jp ta vue m'a video ben oui j'ai changer l injecteurs..
Salut,

Tu en as changé combien ? Le ou les cylindres n'ont pas été lavés ?
Là, une vidange s'impose !! Il doit y avoir une bonne quantité de gasoil dans l'huile...
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Old 12-01-2019, 04:38 PM   #40
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On va peut être se moquer mais j’ai été formé à la Vieille école, et un stéthoscope d’atelier pourrait bien t’aider !
Tu localiserais de suite ton bruit.
Y a des modèles respectables chez les fabricants d’outillage pour quelques dizaines d’euros.
Je ne peux plus m’en passer
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Old 12-01-2019, 05:21 PM   #41
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Je vais regarder pour m'en commander un pour mettre dans ma servante..
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Old 12-01-2019, 06:34 PM   #42
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Quote:
Originally Posted by sadna View Post
Si je me rapelle bien mes cours de meca diesel
le bruit de claquement, c'est du a l'injecteur qui reste bloqué ouvert, le bruit de l'explosion de compression ou l'onde de choc remonte jusque dans le haut de l'injecteur.
l'injecteur agit comme un hautparleur, impossible de trouver la source du bruit sans un stéthoscope mecanique.

@+
Salut,

Je pense que tu te rappelles mal de tes cours …
Car un injecteur qui agit comme un hautparleur, il faudra que tu me photocopies cela de tes cours.
Car si tel est le cas, ton prof de Diesel était un ……..

Pour faire simple, c’est tout simplement un bruit anormal de la combustion vive se réalisant avec une quantité de carburant trop importante …

Dans tous les cas, c’est un bruit aigu sur le haut du moteur, contrairement à un bruit de tête de bielle qui fait un bruit plus sourd « grave », et généralement, on ne peut pas les confondre ;

Pour ce qui est de la fumée blanche, cela signifie présence d’H2o. L’eau peut provenir de l’extérieur (joint de culasse, refroidisseur EGR, …) mais aussi d’une mauvaise combustion (compression faible, mauvaise avance, faible montée en T°, défaut de carburant, défaut injecteur, …) et puis aussi d’une condensation dans l’échappement, …
Bien-sûr la liste n’est pas exhaustive.
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Old 12-04-2019, 07:00 PM   #43
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salut
je pense que c'est un poussoir hydraulique qui a lâché, ouvre et jette un coup d’œil j'ai eu un cas similaire pas trés longtemps.
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Old 12-05-2019, 09:44 AM   #44
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salut
je pense que c'est un poussoir hydraulique qui a lâché, ouvre et jette un coup d’œil j'ai eu un cas similaire pas trés longtemps.
Salut,
Je pense que tu devrais prendre le temps de lire les posts en entier...

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