Like a compression test, a leak down test is accomplished by replacing a spark plug with the tester hose. A cylinder leak down test, can tell you if the loss of compression is from, worn rings, burned or stuck open valves or a leaking head gasket. Note that a leak down tester will differ from an engine compression tester
Types Stresses Compression Tension Shear Bending Stock Vector (Royalty
A cylinder leak down test kit will typically consist of the primary guage set which includes a pair of gauges, a regulator to set the pressure of incoming shop air, and a hose to connect to the spark plug adapter.
