audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Connecting Rod, Engine > < Connecting Rod Bearing|Specifications
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Connecting Rod Bearing: Testing and Inspection

Connecting Rod Bearing Clearance, Checking

Note: 
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Replace the connecting rods only in complete sets.

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Do not interchange the connecting rod bearing shells.

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Mark connecting rods and connecting rod bearing caps with light center punch marks (arrow) before removing.

Checking radial clearance 
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Remove connecting rod bearing caps. Clean caps and journals.

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Place Plastigage over entire width of bearing journal or bearing shell.

CAUTION:  DO NOT turn the crankshaft or allow it to rotate while measuring with Plastigage in place.

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Install connecting rod bearing cap and tighten to 20 Nm (15 ft. lbs.). Do not tighten further.

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Remove connecting rod bearing cap again.

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Compare width of Plastigage with calibrated scale.

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Always replace connecting rod bolts.

Connecting Rod, Engine > < Connecting Rod Bearing|Specifications