Piston, Engine

The pistons are stamped with a letter and an arrow. Pistons stamped "R" are installed in cylinders 1, 3 and 5; pistons stamped "L" are installed in cylinders 2, 4 and 6. When a piston is installed in the engine, its arrow mark must face the front of the engine. The connecting rod and cap are stamped on the side with a cylinder number identification. The numbered side of the connecting rod cap must be installed on the same side as the numbered side of the rod.