Lang Tools Compression Tester Set (TU-30A)

The Lang Tools Compression Tester Set (TU-30A) is an indispensable diagnostic tool designed for accurately assessing the compression in a wide variety of gasoline engines. This comprehensive kit caters to nearly all domestic and foreign cars, light trucks, and even mini-engines found in motorcycles, snowmobiles, and outboard motors. By providing precise compression readings, the TU-30A helps technicians and enthusiasts identify critical engine issues such as worn piston rings, faulty valves, or compromised head gaskets, ensuring efficient troubleshooting and maintenance.KEY FEATURES AND BENEFITS: Universal Gasoline Engine Compatibility: Tests compression on all types of gasoline engines found in domestic and foreign cars, light trucks, and mini-engines, making it a highly versatile tool for diverse applications. Precision Main Gauge (M68): Features a 2-1/2″ (M68) gauge with a clear dual-scale dial, displaying readings from 0-300 PSI and 0-21 bar. This main gauge is equipped with a protective boot to prevent damage from impacts. Dedicated Small Engine Tester (TU-21): Includes a specialized small engine tester (part no. TU-21) with M14/M18 threads. Its 1-1/2″ (M43) gauge offers a dual-scale dial from 0-200 PSI and 0-14 bar. The integrated valve core at the bottom ensures consistent and accurate readings by preventing pressure loss during tests. Specialized Ford Triton Adapter: Comes with an M12/M16 flexible hose adapter specifically designed for Ford Triton 3-valve engines manufactured between 2004 and 2014, ensuring precise fitment for these particular engines. Comprehensive Adapter and Extension Set: The kit includes essential adapters such as M14 separate flexible hose adapters (both short and long thread), M10 solid adapters, an 8-inch extension tube, and a 24-inch extension hose, providing flexibility for various engine configurations. Quick and Reliable Operation: The main gauge assembly features a quick coupler connection for fast and easy changes of hose and adapter assemblies. A convenient push-button release valve allows the gauge to hold the highest compression reading and then reset to zero. Organized and Protected Storage: All components are neatly arranged within a durable plastic case, featuring dedicated compartments that protect each part and keep the set organized for transport and storage. Repair Parts Included: A repair parts kit is supplied with the set, ensuring the longevity and continued functionality of the tool by allowing for the replacement of common wear-and-tear components.SPECIFICATIONS: Main Gauge Diameter: 2-1/2″ (M68) Main Gauge Range: 0-300 PSI and 0-21 bar Small Engine Gauge Diameter: 1-1/2″ (M43) Small Engine Gauge Range: 0-200 PSI and 0-14 bar What is Included: M68 gauge with protective boot, Small engine tester (part no. TU-21) with M14/M18 threads, M14 separate flexible hose adapter (short thread), M14 separate flexible hose adapter (long thread), M12/M16 flexible hose adapter for Ford Triton 3 valve engines only (2004-2014), M10 solid adapters, 8-inch extension tube, 24-inch extension hose, repair parts kit, plastic storage box.HOW TO USE: Prepare the Engine: Ensure the engine is at normal operating temperature. Turn off the ignition and disconnect the fuel pump or ignition system to prevent fuel delivery or spark during the test. Remove Spark Plugs: Carefully remove all spark plugs from the engine cylinders. Select Adapter: Choose the appropriate adapter and extension hose combination that matches the spark plug hole threads of the cylinder you are testing. Connect Gauge: Thread the selected adapter securely into the spark plug hole. Connect the main compression gauge assembly to the adapter using the quick coupler. Perform Test: Fully open the throttle (and choke, if applicable). Crank the engine using the starter motor for several compression strokes (typically 4-7 cycles) until the gauge needle stops rising. Record Reading: Note the compression reading displayed on the gauge. The gauge will hold the peak pressure. Release Pressure: Press the release button on the gauge to release the pressure and reset the needle to zero. Repeat for Cylinders: Disconnect the gauge and adapter, then repeat steps 4-7 for each remaining cylinder. Analyze Results: Compare the readings from all cylinders. Significant variations (typically more than 10-15%) between cylinders may indicate an engine issue. Consult your vehicle’s service manual for specific compression specifications.BENEFITS OF USING LANG TOOLS COMPRESSION TESTER SET (TU-30A): Provides accurate data to diagnose common engine performance problems. Helps identify issues like worn piston rings, valve seat leakage, or head gasket failures. Reduces guesswork in engine troubleshooting, saving time and effort. Allows for proactive maintenance by identifying potential problems before they become severe. Supports a wide array of vehicle types, from passenger cars to small recreational engines. Offers a cost-effective solution for professional-level engine diagnostics.FEATURES: Dual-scale pressure gauge displays PSI and bar readings. Integrated quick-coupler for rapid hose and adapter changes. Push-button pressure release valve for quick gauge reset. Small engine tester includes dedicated M14 and M18 threads. Valve core located on the small engine tester for reading stability. Flexible hose adapters for deep or hard-to-reach spark plug ports. Solid adapters for standard spark plug hole access. M10 solid adapters for specialized or smaller spark plug applications. Included extension tube and hose for extended reach flexibility. Custom-fitted compartments within the storage case for tool organization. Supplied with a kit containing replacement parts for common wear items. Adapters designed for use on both flat and tapered spark plug seats.