New OTC cylinder leakdown tester. Tester fills cylinder up with air so you can see how much air leaks out of each cylinder to know the condition of each cylinder. Includes 10mm, 12mm, 14mm, 18mm spark plug port adapters. Also used to fill individual cylinders with air so you can swap valve springs with the cylinder heads installed.
NOTE : This tool requires a shop compressor with capacity of over 100 PSI to use.