809128M Mercury SCREW

Illustration 1 g00509557
(1) Turbine speed sensor
(2) Magnetic pickups Turbine speed sensor (1) - The rpm of the turbine wheel is detected by a speed sensor. The sensor is inside of the turbocharger housing.Magnetic pickups (2) - The rpm of the flywheel ring gear is detected by magnetic pickups. The information is sent to the Engine Control Module (ECM). An overspeed will cause an engine shutdown.
Illustration 2 g00509590
(3) Oil temperature sensor
(4) Unfiltered oil pressure sensor
(5) Filtered oil pressure sensor
(6) Jacket water pressure sensor
(7) Oil pressure sensor Oil temperature sensor (3) - A sensor in the oil temperature regulator housing helps to monitor the oil temperature. Excessive oil temperature can cause an alarm or a shutdown.Unfiltered oil pressure sensor (4) - This sensor is located before the oil filters. The pressure of the unfiltered oil is compared to the pressure of the filtered oil. Oil filter differential pressure is calculated from the difference between the pressure before the filters and the pressure after the filters. High differential pressure can cause an alarm or a shutdown.Filtered oil pressure sensor (5) - This sensor is located after the oil filters. The pressure of the filtered oil is compared to the pressure of the unfiltered oil. Oil filter differential pressure is calculated from the difference between the pressure before the filters and the pressure after the filters. High differential pressure can cause an alarm or a shutdown.Jacket water pressure sensor (6) - Jacket water pressure is detected by a pressure sensor that is located on the elbow at the outlet of the jacket water pump. Low jacket water pressure will activate an alarm.Oil pressure sensor (7) - The engine oil pressure is monitored by a pressure sensor. Low oil pressure can cause an alarm or a shutdown.
Illustration 3 g00510011
Left side of view of the C280-16 Engine with rear mounted turbocharger.
(8) Filtered fuel pressure sensor
(9) Unfiltered fuel pressure sensor
(10) Jacket water outlet temperature sensor
(11) Inlet manifold air pressure sensor
(12) Fuel temperature sensor
(13) Aftercooler water temperature sensor
(14) Exhaust temperature sensor
(15) Metal particle detector
(16) Starting air pressure sensor Note: A vee engine is used to show the sensor locations in Illustrations 3 and 4. The vee engines and the in-line engines have different locations for the sensors that detect these parameters: inlet manifold air pressure (11), inlet manifold air temperature (18) and aftercooler water temperature (13).Filtered fuel pressure sensor (8) - The sensor for detecting the fuel pressure of the filtered fuel is located after the fuel filters. Low fuel pressure will activate an alarm.Unfiltered fuel pressure sensor (9) - The sensor for detecting the fuel pressure of the unfiltered fuel is located after the fuel filters. Fuel filter differential pressure is calculated from the difference between the pressure before the filters and the pressure after the filters. High differential pressure will activate an alarm.Jacket water outlet temperature sensor (10) - Jacket water outlet temperature is measured before the water temperature regulators. A high temperature can cause an alarm or a shutdown.Inlet manifold air pressure sensor (11) - On vee engines, the sensor for inlet manifold air pressure is located behind a cylinder head (Illustration 3). On in-line engines, the sensor is located on the side of the engine (Illustration 4). High inlet manifold air pressure will activate an alarm.Fuel temperature sensor (12) - A sensor for fuel temperature is located on the rear of the fuel filters. Excessive fuel temperature can activate an alarm or a shutoff.Aftercooler water temperature sensor (13) - The sensor for aftercooler water temperature is located before the aftercooler. For vee engines, see Illustration 3. For in-line engines, see Illustration 4. High aftercooler water temperature can cause an alarm or a shutdown.Exhaust temperature sensor (14) - Exhaust temperatures are measured from the exhaust port of each cylinder (Illustration 3). An alarm is activated if the exhaust temperature from any cylinder deviates excessively from the average temperature of all of the cylinders.Metal particle detector (15) - A metal particle detector is mounted near the oil pump (Illustration 3). Excessive metal particles in the oil can cause an alarm or a shutdown.Starting air pressure sensor (16) - A sensor for measuring starting air pressure is located in the air line before the starting motor. Low starting air pressure activates an alarm.
Illustration 4 g01165731
Right side of view of the C280-16 Engine with rear mounted turbocharger.
(17) Turbocharger turbine inlet temperature sensor
(18) Inlet manifold air temperature sensor
(19) Crankcase pressure sensor
(20) Oil level sensor Turbocharger turbine inlet temperature sensor (17) - A temperature sensor is mounted at the inlet of the turbocharger turbine. A high turbocharger turbine inlet temperature will activate an alarm.Inlet manifold air temperature sensor (18) - On vee engines, the sensor for inlet manifold air temperature is located next to a cylinder head (Illustration 8). On in-line engines, the sensor is located on the side of the engine (Illustration 4). High inlet manifold air temperature can activate an alarm or a shutdown.Crankcase pressure sensor (19) - The crankcase pressure sensor is located near the oil level gauge. High crankcase pressure can activate an alarm or a shutdown.Oil level sensor (20) - The crankcase oil level is monitored by a float that is inside of the crankcase. Low oil level will activate an alarm.
Illustration 5 g03361126
Right side view of a C280-16 Engine with front mounted turbocharger.
(7) Engine oil filter inlet temperature sensor
(8) Fuel filter outlet primary pressure sensor
(9) Fuel filter outlet temperature sensor
(10) Wastegate air pressure sensor
(11) CRKC pressure sensor (lubrication system)
(12) Intake manifold air temperature primary sensor
(13) Intake manifold air temperature secondary sensor
(14) Fuel filter outlet pressure secondary sensor
(15) Fuel filter outlet pressure primary sensor
(16) Fuel filter inlet pressure sensor
Illustration 6 g03361130
Left side view of a C280-16Engine with a front mounted turbocharger
(17) Block outlet cooler oil temperature sensor