Compression Tester

Professional compression testers detects worn rings, burnt valves and blown head gaskets, and allows accurate adjustment of base and advance timing reading. Works on most foreign and domestic vehicles, small engines, motorcycles, snowmobiles, and ATVs. This kit works on standard and metric scales. Compatible with most standard spark plug threads. QUick disconnect coupler separates hose from gauge for faster, easier connections to the engine. Push button side release valve allows repeated testing without disconnection. Bourdon tube movement for accurate readings, heavy duty rubber boot protects gauge.