Crankshaft Gear - Replacement (1-11) Section 1 - Cylinder Block - Group 01 M11 Page 1-40 Visually inspect the crankshaft gear journal for burrs or damage. Use crocus cloth to remove burrs. Measure the crankshaft gear inside diameter. Crankshaft Gear Bore I.D. mm in 85.910 MIN 3.3823 85.935 MAX 3.3833 Measure the crankshaft gear journal outside diameter. Crankshaft Gear Journal O.D. mm in 85.975 MIN 3.3848 86.000 MAX 3.3858 Installation Use a soft hammer to install the key in the crankshaft keyway.