Nissan VG V6 Engine 200,000 miles maintain.

In this instructional video, the uploader guides viewers through the process of repairing a crankshaft on a 2003 Nissan Frontier that is exhibiting knocking and rattling sounds from the crankshaft pulley. The repair begins with the removal of the crankshaft harmonic balancer pulley to address issues with the woodruff keyway. Viewers learn how to diagnose the noise by removing various belts, inspecting bearings, and identifying the harmonic balancer pulley as the likely source of the problem. The uploader employs a rope method to prevent the crankshaft from turning while loosening the bolt, tackling the challenge of corrosion that complicates the removal process. The video emphasizes the importance of using OEM parts for durability and reliability, particularly when addressing rust and corrosion in older vehicles. In addition to repairing the woodruff keyway, the uploader details the process of replacing the crankshaft front oil pump seal and the timing belt, including the installation of a new tensioner. Viewers are shown how to clean and apply JB Weld to securely bond the woodruff key, ensuring accurate mechanical timing. The video highlights the necessity of aligning timing marks and maintaining proper tension on the timing belt. After completing all repairs, the engine is started to check for correct RPM levels, which indicates successful oil pressure and functionality. Throughout the video, practical tips and techniques for DIY mechanics are provided, emphasizing the significance of proper maintenance, timely oil changes, and the role of antifreeze in the cooling system. Overall, the video serves as a comprehensive guide for effectively addressing crankshaft-related issues.