audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Connecting Rod, Engine|Service and Repair > < Connecting Rod, Measuring Axial Clearance
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Connecting Rod: Testing and Inspection
Connecting Rod, Measuring Radial Clearance

Connecting Rod, Measuring Radial Clearance

Special tools, testers and auxiliary items required

‹› Plastigage (R)

Procedure

Proceed as follows:

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Remove connecting rod bearing cap. Clean the bearing cap and journal. 

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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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Install connector rod bearing cover and tighten bolts to 45 Nm, do not rotate crankshaft when doing so.

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Reinstall connecting rod cover.

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Compare width of Plastigage (R) with calibrated scale.

Radial clearance:

‹› New: 0.02 to 0.06 mm.

‹› Wear limit: 0.09 mm.

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 Replace connecting rod bolts.

Connecting Rod, Engine|Service and Repair > < Connecting Rod, Measuring Axial Clearance