Connecting Rod: Testing and Inspection

Connecting Rod, Measuring Radial Clearance

Special tools, testers and auxiliary items required

• Plastigage(R)

Procedure

- Remove the connecting rod bearing cap.

- Clean the bearing cap and journal.

- Place the Plastigage(R) over the entire width of the bearing journal or into the bearing shells.

- Mount the connecting rod bearing cap and tighten the old bolts to 50 Nm without tightening further. Do not turn crankshaft.

- Install the connecting rod bearing cap.

- Compare width of Plastigage(R) with calibrated scale.

Radial clearance:

• New: 0.010 to 0.052 mm.

• Wear limit: 0.120 mm.

- Replace connecting rod bolts.