Chain tensioner, timing chain
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Chain tensioner, timing chain
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1.
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Remove the intake hose and resonator (B206i B234i).
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2.
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Turn the crankshaft to the 0° mark and remove the plug.
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3.
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Take out the locating pin and spring.
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4.
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Remove the chain tensioner.
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New chain tensioners come with the spring under tension. Be careful not to remove the pin before the chain tensioner has been fitted in place on the engine.
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1.
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Prepare the chain tensioner for fitting by pressing down the catch and pushing in the chain tensioner.
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2.
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Fit the chain tensioner, using a 27 mm socket.
Tightening torque: 63 Nm (47 lbf ft).
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3.
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Fit the plug for the chain tensioner with push rod and spring.
Tightening torque: 22 Nm (16 lbf ft).
As the plug is screwed in, the spring pushes the tensioning arm out and so tightens the chain.
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4.
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Fit the resonator and the intake hose (B206i B234i).
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