Engine Cylinder Compression Tester Gauge Tool M14 M18 Auto Truck Car
- 2 Adapters 14MM 18MM for a wide number of vehicles (spark plug types/depths)
- Kit includes 1 rubber cones end for quick check (no need to thread into head)
- 3" Gauge has dual color scale with 0-300 PSI, 0-20 kPa
- Assembly: 13" long 14mm Flexible Rubber Hose with removable Schrader Valve
- Includes 14mm and 18mm spark plug adapters
- Kit includes 14MM - 1.25 mm adapter (brass with O-ring) 18MM - 1.50 mm adapter (brass with O-ring) 6" Long Universal fits all spark plug holes rubber cone tip adapter (chrome straight) 2-1/2" Gauge to 300 PSI, 21 kPa Easy pressure release button 13" long 14mm Flexible Rubber Hose Blow molded hard case Quickly diagnose problems with pistons, rings, and valves For all domestic and imported engines Holds pressure then release with steel push button release valve Rubberized protector for gauge If the compression is low, put small amount of oil in cylinder and see if compression changes. If no change then the issue could be the valve seats or valve system operation like worn camshaft lobe. If the compression changes when oil is added to rings then the rings are suspect as the problem. Tool helps detect the problem cylinder