Nissan engine repairing with full lesson in hindi urdu👍old and week engine in to brand new engine

old engine in to brand new engine🤝 03125260306 Bismillah auto workshop full engine over halling with bunch of knowledge engine over halling parts full lesson of crank shaft fixing full lesson of piston ring instalation blue smoke while cold starting cold starting trouble oil pump water pump piston pistong ring over halling kit specil tools👍 ecm basics will be next👍