Compression and leakage tester

Claim 1

A COMPRESSION TESTER FOR AN INTERNAL COMBUSTION ENGINE HAVING A CYLINDER WITH A SPARK PLUG OPENING AND HAVING A STARTING SOLENOID, SAID TESTER COMPRISING A MAIN BODY HAVING A BARREL PORTION AND A DEPENDING HANDLE PORTION, SAID BARREL PORTION BEING FORMED WITH A LONGITUDINAL PASSAGE EXTENDING FROM END TO END THEREOF, THE REAR END OF SAID PASSAGE BEING ENLARGED TO DEFINE A FLUID PRESSURE CHAMBER, A PRESSURE GAUGE MOUNTED ON THE REAR END OF SAID BARREL PORTION IN COMMUNICATION WITH SAID PRESSURE CHAMBER, NORMALLY CLOSED VENT VALVE MEANS IN A WALL OF THE PRESSURE CHAMBER, MEANS TO AT TIMES OPEN SAID VENT VALVE MEANS, A CHECK VALVE IN THE FORWARD END OF SAID PRESSURE CHAMBER OPENING ONLY TO ALLOW ENTRY OF FLUID INTO THE PRESSURE CHAMBER, A FLEXIBLE CONDUIT HAVING A FITTING ON ONE END ENGAGEABLE IN THE SPARK PLUG OPENING, MEANS TO DETACHABLY CONNECT THE OTHER END OF SAID CONDUIT TO THE FORWARD END OF THE BARREL PORTION AND IN COMMUNICATION WITH SAID PASSAGE, SAID HANDLE PORTION BEING FORMED WITH A FLUID SUPPLY PASSAGE COMMUNICATING WITH SAID BARREL PASSAGE, A CHECK VALVE BETWEEN SAID SUPPLY PASSAGE AND SAID BARREL PASSAGE ALLOWING FLUID TO FLOW ONLY FROM THE SUPPLY PASSAGE TO THE BARREL PASSAGE, A MANUALLY OPERATED CONTROL VALVE IN SAID HANDLE PASSAGE, A SOURCE OF FLUID UNDER PRESSURE CONNECTED TO SAID SUPPLY PASSAGE, A STARTER SWITCH MOUNTED ON SAID HANDLE PORTION, AND A PAIR OF FLEXIBLE CONDUCTORS CONNECTED TO THE TERMINALS OF SAID STARTER SWITCH AND ADAPTED TO BE CONNECTED TO THE STARTER SWITCH TERMINALS OF THE STARTING SOLENOID OF THE INTERNAL COMBUSTION ENGINE.