815919A 1 Mercruiser SHIFT SHAFT, Lower

At operating temperature, the engine coolant is hot and under pressure. The radiator and all lines to heaters or the engine contain hot water or steam. Any contact can cause severe burns. Look at the sight gauge to check the coolant level. The coolant level should be in the green range. If necessary, remove the fill cap only after the engine has been stopped and the cap is cool enough to remove with your bare hand. Remove the cooling system fill cap slowly to relieve pressure. Cooling system condition contains alkali that can cause personal injury. Avoid contact with the skin and eyes and do not drink. Allow cooling system components to cool before draining.
1. Drain the coolant from the cooling system into a suitable container for storage or disposal.
At operating temperature, the hydraulic oil tank is hot and under pressure. Hot oil can cause burns. Remove the breather filter cap only when the engine is stopped and the breather filter cap is cool enough to touch. Slowly loosen the breather filter cap to release any pressure in the hydraulic tank. Be cautious of hot hydraulic oil when any lines are disconnected in the hydraulic system.
2. Drain the oil from the hydraulic tank into a suitable container for storage or disposal.3. Disconnect bracket and clip (1) (not shown) from the cylinder block. Loosen clamp (2). Remove oil breather tube (3) from the hose.4. Remove the bolts and disconnect the elbows from the side of the oil cooler. 5. Fasten a hoist to the brake and torque converter oil cooler. Remove bolts (4) that secure the rear bonnet to the cylinder block and brake and torque converter oil cooler. Remove rear bonnet (5).6. Remove O-ring seal (6) from the bonnet. 7. Remove bolts (7) that secure the oil cooler to the front bonnet. Remove the oil cooler from the front bonnet. Use a hoist to lower the brake and torque converter oil cooler (8) to the floor. The weight of the brake and torque converter oil cooler is approximately 50 kg (110 lb).8. Refer to publication SEBF8085 for the inspection and cleaning procedure of the tubes in the core of the oil cooler.Install Brake & Torque Converter Oil Cooler
1. Fasten a hoist to the oil cooler. Place the brake and torque converter oil cooler (8) in position on the engine. Install the bolts (7) that secure the oil cooler to the front bonnet.2. Install O-ring seal (6) on the rear bonnet. Put a small amount of clean SAE 30W oil on the O-ring seal. 3. Install a new gasket and O-ring seals on the rear bonnet. Place rear bonnet (5) in position on the brake and torque converter oil cooler. Install bolts (4) that secure the oil cooler to the rear bonnet and the bonnet to the cylinder block.4. Connect the elbows to the side of the brake and torque converter oil cooler. 5. Place oil breather tube (3) in position in the hose. Connect bracket and clip (1) (not shown) to the cylinder block. Tighten clamp (2).6. Fill the hydraulic tank with oil to the correct level. Refer to the Operation & Maintenance Manual, SEBU6968 for the correct capacity and fluid.7. Fill the cooling system with coolant to the correct level. Refer to the Operation & Maintenance Manual, SEBU6968 for the correct capacity and fluid.End By:a. install crankcase guards.