Begin with front wheel RH and then disconnect the front fender splash shield front RH along with front fender apron seal RH, engine mounting stay No. 2 RH, engine cover sub-assy No. 1, and engine moving control rod with bracket by removing their 3 bolts. The subsequent step involves removing the engine mounting bracket No. 2 RH, fan and generator V belt, and crankshaft pulley after employing Special Service Tool: 09213-54015 (91651-60855), 09330-00021 to loosen the pulley bolt and then employing Special Service Tool: 09950-50013 (09951-05010, 09952-05010, 09953-05020, 09954-05021) to completely remove it. The repair process for the oil seal starts with knife-cutting its lip before using a screwdriver with taping tip to pry the lip out. Inspect the crankshaft for damage and fix any seen damage by sanding with #400 sandpaper before moving to the installation step. Fit the new oil seal by applying MP grease to its lip while checking for foreign materials then use Special Service Tool: 09223-22010 plus a hammer to tap it until it reaches the rear oil seal retainer edge before wiping off surplus grease on the crankshaft. The crankshaft pulley installation requires inserting the pulley set key into the key groove before tightening the pulley bolt by using Special Service Tools: 09213-54015 (91651-60855), 09330-00021 while torquing it to 170 Nm (1,733 kgf-cm, 125 inch lbs.). Use Special Service Tool: 09249-63010 to install the fan alongside generator V belt before setting the engine mounting bracket No. 2 RH to 52 Nm (531 kgf-cm, 38 ft. lbs.) torque and adding the engine moving control rod with bracket which needs 64 Nm (653 kgf-cm, 47 ft. lbs.) torque. Complete the process by reinstalling and torquing the front wheel RH to 103 Nm (1,050 kgf-cm, 76 ft. lbs.). Then install and torque engine mounting stay No. 2 RH to 64 Nm (653 kgf-cm, 47 ft. lbs.). The last step requires leak detection during the inspection.