OEM 2005 Chevrolet Blazer Crankshaft Seal

2005 Chevrolet Blazer Parts Questions & Experts Answers

• Q: How to replace the rear crankshaft seal on 2005 Chevrolet Blazer?

  A: Replacing the Crankshaft rear oil seal starts by removing the Transmission Assembly along with the engine Flywheel. Professionally use the tool to remove the Crankshaft rear oil seal from its housing before discarding it. Start by cleaning away all soiling and rust buildup from this area. Place 2 to 3 drops of clean engine oil on the Crankshaft rear oil seal housing bore and the outside diameters of engine Flywheel pilot flange and Flywheel locator pin and Crankshaft seal surface area. Check for imperfections on the j 35621-b rear main seal installer (J 35621-B) flange and remove them using fine-grade emery cloth. Maintain a lubricant-free area surrounding the Crankshaft rear oil seal lip surface. Install the Crankshaft rear oil seal onto j 35621-b after applying 2 to 3 drops of clean engine oil to its outside diameter. Secure the j 35621-b onto the Crankshaft's rear end by tightening the tool bolts by hand until the assembly is snug. Correct alignment of the Crankshaft rear oil seal requires special attention because improper installation can damage the seal. Place the seal as near to flush position while maintaining square alignment with the housing. Use a clockwise motion on the j 35621-b wing nut while installing the seal but stop when you encounter increased resistance at the housing bore bottom. Using a counter-clockwise motion on the tool's wing nut frees the j 35621-b from the Crankshaft position. Next, take out the tool while cleaning off any remaining engine oil then replace the transmission and Flywheel assembly.