Connecting Rods, Checking Radial Clearance
WARNING: This page is about a different car, the 2023 Audi S3, 2023 Audi RS 3, 2023 Audi A3 Quattro, and 2023 Audi A3. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
- Plastigage
Procedure
-- Mark the installation position and which connecting rod bearing cap -1- belongs to which connecting rod OVERVIEW - PISTONS AND CONNECTING ROD.
-- Remove the bolts -arrows- and remove the connecting rod bearing cap.
- Do not damage the cracked surfaces of the connecting rods and connecting rod bearing caps.
-- Clean the bearing cap and pin.
-- Place the Plastigage over the entire width of the bearing journal or into the bearing shells.
-- Position the connecting rod bearing cap and fasten with the old bolts OVERVIEW - PISTONS AND CONNECTING ROD. Do not turn the crankshaft at the same time.
-- Remove the connecting rod bearing cap again.
-- Compare the width of the Plastigage with the measuring scale.
Radial clearance
- New: 0.02 to 0.06 mm.
- Wear limit: 0.09 mm.
-- Replace the bolts for the final assembly.