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Section 03 ENGINES A33C1AA – Activate pump and pressurize engine to 34 kPa (5 PSI). Do not exceed this pressure. – Engine must stand this pressure during 3 min- utes. If pressure drops before 3 minutes, check where leak comes from. • If tester kit is not leaking, check engine as per following procedure. PROCEDURE NOTE: A flow chart has been prepared as a visual Using flow chart and following text, pressurize TEST PRESSURE: 34 KPA (5 PSI) FOR 3 MINUTES • If there is a leak at the tested location, it is recommended to continue testing next items • If there is no leak at the tested location, con- tinue pumping to maintain pressure and con- Engine Check the following: – All jointed surfaces and screw/stud threads of engine: • cylinder crankcase halves (joint) – Small injection oil lines coming from pump. A32C1GA 1 2 1 TYPICAL Check for air bubbles or oil column going toward – Remove cooling system cap. Check for air bubbles in antifreeze. It indicates de- – Remove drive pulley then check crankshaft out- er seal. – Remove rewind starter and magneto system then check crankshaft outer seal. – Check pump shaft gear oil reservoir. Pump Shaft Oil Gear Reservoir Install air pump on adapter and pressurize as 48 mmr2005-068 |