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ENG
CYLINDRE ET PISTON
ZYLINDER UND KOLBEN
Kolbenbolzen
1. Kontrollieren:
Kolbenbolzen
Blaufärbung/Riefen Erneuern und
Schmiersystem überprüfen.
2. Messen:
Kolbenbolzenspiel
ZUSAMMENBAU UND MONTAGE
Kolben
1. Montieren:
Kolbenringe
(auf den Kolben)
HINWEIS:
Die Kolbenringe so montieren, daß die Her-
stellerangaben nach oben weisen.
Kolben und Kolbenringe reichlich mit Motoröl
schmieren.
Arbeitsschritte
Den Außendurchmesser (Kolbenring) a
messen.
Falls unvorschriftsmäßig, den Kolbenbol-
zen erneuern.
Kolbenbolzen-Durchmesser
18,99119,000 mm
Den Innendurchmesser (Kolben) b mes-
sen.
Innendurchmesser (Kolben)
19,00419,015 mm
Kolbenbolzenspiel nach folgender Formel
berechnen.
Kolbenbolzenspiel =
Innendurchmesser (Kolben) b
Kolbenbolzen-Durchmesser a
Falls unvorschriftsmäßig, den Kolben
erneuern.
Kolbenbolzenspiel
0,0040,024 mm
<Grenzwert> 0,07 mm
Axe de piston
1. Contrôler:
Axe de piston
Décoloration bleue/gorges Remplacer
puis examiner le système de graissage.
2. Mesurer:
Jeu entre axe de piston et piston
ASSEMBLAGE ET MONTAGE
Piston
1. Monter:
Segments de piston
Sur le piston.
N.B.:
Sassurer dinstaller les segments de piston de
sorte que les repères ou numéros du constructeur
se trouvent sur le côté supérieur des segments.
Lubrifier généreusement le piston et les segments
avec de lhuile moteur.
Etapes de la mesure:
Mesurer le diamètre extérieur (axe de piston)
a.
Sil nest pas conforme aux spécifications,
remplacer laxe de piston.
Diamètre extérieur (axe de piston):
18,991 à 19,000 mm
(0,7477 à 0,7480 in)
Mesurer le diamètre intérieur (piston) b.
Diamètre intérieur (axe de piston):
19,004 à 19,015 mm
(0,7482 à 0,7486 in)
Calculer le jeu entre laxe de piston et le piston
par la formule suivante.
Jeu entre axe de piston et piston =
Taille dalésage (axe de piston) b
Diamètre extérieur (axe de piston) a
Si le jeu nest pas conforme aux spécifications,
remplacer le piston.
Jeu entre axe de piston et piston:
0,004 à 0,024 mm
(0,00016 à 0,00094 in)
<Limite>: 0,07 mm (0,003 in)
327


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