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General Repair Instructions (Cylinder Head)
The hydraulic valve lifters extend themselves through the
camshaft without stress. To regain the required dimensions of the
hydraulic valve lifters after the installation of the camshaft,
temperature-dependent waiting times must be observed. The following
waiting times must be observed for the hydraulic valve lifters when
working on the cylinder head!
Operations on valve drive with cylinder head removed:
Waiting times are between installation camshaft and attachment
of the cylinder head:
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4 minutes at
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20 °C / 68 °F (room temperature)
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11 minutes at
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10 °C to 20 °C / 50 °F to 68 °F
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30 minutes at
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0 °C to 10 °C / 32 °F to 50 °F
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Operations on the valve drive with the cylinder head
attached:
After installation of the camshaft and the timing chain, the
engine may only be cranked after the following waiting times:
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10 minutes at
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20 °C / 68 °F (room temperature)
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30 minutes at
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10 °C to 20 °C / 50 °F to 68 °F
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75 minutes at
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0 °C to 10 °C / 32 °F to 50 °F
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