OEM 2003 Toyota Corolla Crankshaft Seal

2003 Toyota Corolla Parts Questions & Experts Answers

• Q: How to replace the front crankshaft seal on 2003 Toyota Corolla?

  A: The first requirement for front crankshaft seal replacement involves removing both the engine under cover RH and the front wheel RH. Start by removing the fan and generator V belt after turning the V-ribbed belt tensioner gradually clockwise until loose then taking out the belt before returning the tensioner to its proper position. First remove the PS oil pump reservoir then place it aside before using a jack with wooden support for the engine during the removal of 4 bolts and 2 nuts from the engine mounting insulator sub-assembly RH. First obtain Special Service Tool: 09960-10010 (09962-01000, 09963-01000) to remove the crankshaft pulley bolt followed by the pulley. Before installing the timing gear cover oil seal cut its lip with a knife and insert it with a taped screwdriver tip while checking the crankshaft for damage to determine if sandpaper repair (#400) is needed. The installation of the new oil seal begins with MP grease on the lip while keeping it clean from foreign debris and uses Special Service Tool: 09220-22010 to push the oil seal until it reaches the timing chain cover edge before wiping off extra grease from the crankshaft. The crankshaft pulley should be replaced through the key groove alignment of pulley set key followed by its sliding motion onto the crankshaft from where the crankshaft pulley bolt should be tightened using Special Service Tool: 09960-10010 (09962-01000, 09963-01000) until it reaches 138 Nm torque (1,401 kgf-cm, 102 ft. lbs.). To install the RH engine mounting insulator sub-assembly the 4 bolts and 2 nuts must be tightened to 52 Nm (530 kgf-cm, 38 ft. lbs.) while the front wheel RH must be tightened to 103 Nm (1050 kgf-cm, 76 ft. lbs.). Finish up by inspecting the engine for oil leakages.