Bleeding the slave cylinder
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Bleeding the slave cylinder
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Removed gearbox is assumed. If gearbox is in-car, see
Bleeding the clutch hydraulic system in the car
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1.
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Connect a 450 mm long piece of clean, transparent 8 mm plastic hose to the slave cylinder delivery pipe connection.
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2.
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Fully depress the release bearing once and then release it. The slave cylinder seal remains in its inner position.
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3.
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Fill the plastic hose with brake fluid to a level of about 350 mm.
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5.
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Pump up pressure until the slave cylinder seal moves out and brake fluid runs down into the slave cylinder. The pressure increases when the seal has reached its farthest point.
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6.
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Remove the pressure/vacuum pump and carefully press in the release bearing to its stop. Note the air bubbles in the plastic hose.
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7.
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Repeat points 5 to 6 a few times until no air bubbles are visible in the hose.
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8.
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Leave the slave cylinder seal in its innermost position. Drain and remove the plastic hose.
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