803560T07 Mercury ECU, Engine Control Unit

3. Loosen two clamps (5) and slide hose (6) off of the elbow.4. Loosen two clamps (7) and slide hose (4) off of the water pump.5. Remove two bolts (1) that hold the elbow to the cylinder head.6. Remove two bolts (3) that hold the water pump to the timing gear cover. Remove water pump (2). 7. Remove elbow (8) from the water pump.Install Water Pump
1. Install elbow (1) and a new gasket on the water pump. 2. Put water pump (2) in position on the timing gear cover. Install the two bolts that hold it.3. Install the two bolts that hold the elbow to the cylinder head.4. Put hose (3) in position on the elbow for the water pump and tighten the two clamps that hold it.5. Install the hose under the water pump. Tighten the two clamps that hold it.6. Install left fan guard.7. Fill the cooling system with coolant to the correct level. See LUBRICATION AND MAINTENANCE GUIDE.Disassemble Water Pump
start by:a) remove water pump 1. Remove cover (1) from water pump (2). 2. Loosen bolt (3) .25 in. (6.35 mm). Hit the bolt with a soft hammer to remove impeller (4) from the shaft. 3. Remove spring and seal assembly (5) from the shaft (6). 4. Turn the housing over and remove bolt and washer (7). Remove bearing (8) and gear (9) as a unit. 5. Use tool (A) and a press to remove bearing (8) from gear (9). 6. Remove snap ring (10) with tool (B). 7. Remove bearing (11) and shaft (6) as a unit. 8. Use tool (A) and a press to remove bearing (11) from the shaft. 9. Remove the ceramic ring and seal (12) from the housing. 10. Remove the lip seal (13) from the housing with tool (C).Assemble Water Pump
1. Install lip seal in water pump housing with tooling (A). The lip of the seal must be toward the bearings. Put clean SAE 30 engine oil on the lip of the seal. 2. Use a press to install shaft (1) in bearing (2). 3. Install the shaft (1) and bearing in the housing (3). 4. Install snap ring (4) in housing with tool (B). 5. Heat the bearing (5) in oil to a maximum temperature of 275°F (135°C) and install on gear (6). 6. Put gear (6) and bearing in position on shaft and install bolt and washer.
Clean water only is permitted for use as a lubricant for assistance at installation. Do not damage or put hands on the wear surface of the carbon ring or the ceramic ring. Install the ceramic ring with the smoothest face of the ring toward the carbon seal assembly.
7. Put the ceramic ring (7) in position in the rubber seal. Use hand pressure and the tool (which is with the replacement ring) to install the ceramic ring. 8. Remove spring from seal assembly (8). Use hand pressure and the tool (which is with the replacement ring) to install the seal assembly. Push seal assembly on shaft until seal faces make light contact. 9. Install spring (9). Put impeller (10) in position and install the washer and bolt. Tighten the bolt to a torque of 27 1 lb.ft. (38 1 N m).10. Install gasket and cover on the housing.end by:a) install water pump