Now you can stretch out the time between costly engine teardowns with an engine leakdown tester by Longacre. These easy-to-use engine leakdown testers check ring seals, valves, and even head gaskets, plus the exclusive Longacre gauge manifold meters the airflow for precise readings. Their rugged design features rubber bumpers to help protect the gauges, and they are the perfect tools to help quickly tell--from the outside--when your engine needs an overhaul!