TTS Quattro Roadster L4-2.0L Turbo (CDMA) (2009)
Crankshaft: Testing and Inspection
Crankshaft, Measuring Radial Play
Crankshaft, Measuring Radial Play
Special tools, testers and auxiliary items required
‹› Plastigage (R)
‹› Do not interchange used bearings.
‹› Bearing shells worn down to nickel coating must be replaced.
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Remove bearing cap.
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Clean bearing cap and bearing journals.
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Place the Plastigage (R) over the entire width of the bearing journal or into the bearing shells.
‹› Plastigage (R) must rest in center of bearing shell.
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Position the bearing cap and tighten the bolts to 30 Nm without rotating the crankshaft.
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Reinstall bearing cap.
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Compare width of Plastigage (R) with calibrated scale.
Radial clearance:
‹› New: 0.017 to 0.037 mm.
‹› Wear limit: 0.10 mm.