955953 Volvo.Penta Toothed washer

If water is not visible, or if water flow is restricted, stop the engine. The engine will overheat. Inspect the inlet screen and the sea water strainer for debris. Remove any debris if present.
Check the gauges and equipment for proper operation. Always increase engine speed before applying the load. Begin operating the engine at low load. The engine will reach normal operating temperature faster when operated at low speed and low power demand than when idled at no load. Typically, the engine should reach operating temperature in a few minutes. After normal oil pressure is reached and the temperature gauges begin to move, the engine may be operated at partial and then full load.If the load varies, or is cyclic, the governor will adjust the engine speed as required.Extended operation at low idle or reduced load may cause increased oil consumption and carbon build-up in the cylinders. This carbon build-up results in loss of power and/or poor performance. When operating at reduced load, the engine should be fully loaded to burn excess carbon from the cylinders at least every four hours. Check the gauges and equipment frequently while operating under load.Gauges readings should be observed and the data recorded frequently while the engine is operating. Comparing the data over time will help determine normal readings for each gauge, and help detect abnormal operating developments. Significant changes in the readings should be investigated.Engine and Marine Transmission Operation
Shifting the Marine Transmission
Full power is transferred from the engine, through the marine transmission, to the propeller shaft. The power may be transferred in either forward or reverse rotation. The marine transmission forward and reverse drives can be operated by mechanical, hydraulic, pneumatic, or electrically actuated controls.A control valve directs the flow of oil to either the forward or reverse clutch (for forward or reverse operation). The valve is operated by a marine transmission selector lever, which can be remotely operated (from the pilot house), or operated manually at the marine transmission (in the engine room).The marine transmission is usually operated from the pilot house. The pilot house controls must be adjusted in order to permit full travel of the marine transmission selector lever, and full engagement of the clutch plates.With the remote controls properly adjusted, periodic clutch adjustment is not required.Moving and Getting Underway
For best performance and maximum service life, shifting the marine transmission must be done in the following specific manner. To get underway after the engine has started and is warm:1. Fully engage the marine transmission selector lever in the desired direction of travel.2. Wait a sufficient amount of time to allow complete engagement of the clutch. Allow at least three seconds before increasing engine speed.3. Gradually increase engine speed as required.
Operate the marine transmission controls ONLY with the engine running. A rotating propeller shaft with an engaged clutch is not lubricated sufficiently when the engine is not running, and may be damaged.
Docking or Traveling (Direction Change)
Do not shift across the NEUTRAL position without a few seconds delay. The engine torque must be able to overcome the propeller and drive line inertia, the marine transmission inertia, and the propeller slip stream torque.A direct through-shift will cause severe shock loads to the engine, marine transmission and hull. Also, it can cause the engine to reverse its rotation (run backwards). If the engine reverses rotation, the engine and marine transmission oil pumps will be running opposite normal rotation. Oil will not reach the bearings, and severe engine damage will occur.When reversing direction of travel (propeller rotation), reduce engine speed to low idle. Place the marine transmission selector lever in NEUTRAL for approximately three seconds to allow the clutch plates to completely disengage and the propeller to stop turning. Move the lever to the other direction and allow three seconds in the position for the clutch to become fully engaged before increasing engine rpm.
1. Reduce engine speed to LOW IDLE.2. Move the marine transmission selector lever to the NEUTRAL position. Wait a sufficient amount of time to allow the clutch plates to completely disengage, and the propeller to stop turning (at least three seconds).3. Move the marine transmission selector lever to the engaged position. Wait at least three seconds to allow complete engagement of the clutch before gradually increasing engine speed. The marine transmission rotation should not be changed at full engine speed. To prevent the propeller from stalling or reversing the engine's rotation, gradually increase engine speed as the clutch is engaged.Stopping the Vessel Temporarily
For a temporary stop when the engine continues to run:1. Reduce engine speed to LOW IDLE.2. Shift the marine transmission to NEUTRAL if water current conditions permit.3. To resume travel, shift into FORWARD or REVERSE at LOW IDLE speed. Gradually increase engine speed as needed.Trolling
The trolling valve is an attachment to the marine transmission. The trolling valve operates only in the forward direction. When the trolling valve is engaged, the engine speed must not exceed 40 percent of the full load speed. Engine speed (rpm) and the marine transmission oil temperature must be within the limits specified by the marine transmission OEM literature.It may be desirable to mark the tachometer and oil temperature gauges at the trolling limits. Proper monitoring of the tachometer and oil temperature gauges is required to prevent overheating of the clutch plates.Trolling at reduced load for several hours may cause oil excessive consumption, and carbon build-up in the combustion chamber. This results in poor engine performance and power loss. Load the engine at full speed to burn the carbon from the combustion chamber every four service hours.Follow OEM instructions for operating other attachments to marine transmissions for trolling purposes.Full Load Operation
Move the governor control to full engine speed. An engine which meets application installation guidelines, has authorized fuel settings, and is rated for continuous operation, can operate at full speed for long periods of time without risking engine damage.If the load varies, or is cyclic, the governor control will adjust the engine speed as required. If a slower constant speed is desired, move the