The OTC Cummins Engine Turning Tool (7161) is a specialized tool designed to simplify the manual rotation of Cummins 855 cubic inch diesel engines. This tool is essential for bringing the pistons to top dead center (TDC), a crucial step in the process of adjusting injector timing.KEY FEATURES AND BENEFITS: Engine Compatibility: Specifically designed for Cummins 855 cubic inch diesel engines. Primary Function: Manual engine rotation and piston positioning. Use Case: Injector timing adjustments. Durability: Built to withstand the rigors of professional use.SPECIFICATIONS: Weight: Approximately 4 pounds, 5 ounces.HOW TO USE: Attach the Tool: Securely attach the tool to the engine’s flywheel or crankshaft. Manual Cranking: Use the tool’s handle to manually crank the engine. Position Pistons: Bring the pistons to the desired position, such as top dead center (TDC). Adjust Injector Timing: Once the pistons are in the correct position, proceed with injector timing adjustments.BENEFITS OF USING OTC CUMMINS ENGINE TURNING TOOL (7161): Efficiency: Saves time and effort compared to traditional methods. Accuracy: Ensures precise piston positioning for accurate timing adjustments. Ease of Use: Simple and straightforward operation.FEATURES: Sturdy Construction: Built from high-quality materials for durability. Ergonomic Design: Comfortable grip for extended use. Precise Fitment: Designed to fit Cummins 855 engines seamlessly. Reliable Performance: Proven performance in professional settings.