Astra L4-1.8L (2009)
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Dimension of fitted cup tappet 3.20 mm (Identification number 20)
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Measurement between cams and cup tappets + 0.31 mm = 3.51 mm
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Required value, valve lash, intake side -0.25 mm
Note: The identification number (arrow) is on the inside of the cup tappet.
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Nominal dimension of the new cup tappet 3.265 mm (Identification number 27x)
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Now use a cup tappet with this dimension or one that is nearest to it.
Installation Procedure
1. Insert the cup tappet with KM-845 .
Lightly coat sliding surfaces with oil.
Caution: Refer to Fastener Caution (See: Service Precautions/Vehicle Damage Warnings/Fastener Caution).
2. Install the intake camshaft.
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Coat with MoS 2 lubricating paste.
Note: Note the identification marking on the camshaft bearing cover.
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Insert the camshaft.
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Install the camshaft bearing cover.
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Tighten the camshaft bearing caps 2-5 in a spiral from the inside to the outside.
Tighten the camshaft bearing caps to 8 Nm (70 lb in).
