Connecting Rods, Checking Radial Clearance
WARNING: This page does not describe the selected car, but rather 12 other vehicles, including the 2017 Audi S5, 2016 Audi S5, 2016 Audi S4, 2015 Audi S5, and 2015 Audi S4. However, it is still accessible from the selected car via links, so may be relevant.
Special tools and workshop equipment required
- Plastigage®
Procedure
-- Remove the connecting rod bearing cap.
-- Clean the bearing cap and journal.
-- Place the Plastigage® over the entire width of the bearing journal or into the bearing shells.
-- Position the connecting rod bearing cap and tighten the old bolts to the final tightening specification (See Figure). Do not turn the crankshaft when doing this.
-- Install the connecting rod bearing cap.
-- Compare width of Plastigage® with calibrated scale.
Radial clearance:
- New: 0.010 to 0.052 mm.
- Wear limit: 0.120 mm.
-- Replace connecting rod bolts.