Checking radial clearance of conrods

Special tools and workshop equipment required

• Plastigage

Procedure

• Remove conrod bearing cap.
• Clean bearing cap and bearing journal.
• Place a Plastigage corresponding to the width of the bearing on the journal or into the bearing shells.
• Fit conrod bearing cap and tighten to 30 Nm (without turning further angle).
• Do not rotate crankshaft while doing so.
• Remove conrod bearing cap again.
• Compare width of Plastigage with the measurement scale.

• Radial clearance: 0.028 to 0.065 mm.

• Renew conrod bolts.