Maintenance 2. Note the hose orientation on the raw water pump ( G ). Loosen the hose clamps ( 2 ) and remove the hoses ( E & H ) from the raw water pump. Crank the engine briefly, (1 or 2 crankshaft revolutions) but do not start the engine, to clear the water from the pump. Reinstall the hoses and secure the clamps in the same orientation as removed. 3. Remove drain plugs from exhaust manifolds. Change the level of the boat to ensure complete drainage. After water is completely drained, rein- stall drain plugs and torque to 29 N•m (22 lb. ft.). CAUTION! Ensure there is sufficient anti- freeze in the closed side of the cooling sys- tem to protect the engine for the anticipated temperatures.
Follow the antifreeze manufac- turers instructions for proper water/anti- freeze ratios. Impeller: Checking & Replacing 7743722 - Downloaded from www.volvopenta.com 13/05/2008 20:17:06 WARNING! If the engine is installed so that the seawater pump is located under the water line, there is a risk of water penetration. If you have a seacock installed, close it now. NOTE! Always carry a spare impeller on board. 1. Remove the hose clamps and hoses from pump. 2. Remove the stationary bracket ( 1 ). 3. Remove the four screws and remove the housing ( 2 ). 4. Inspect the impeller ( 3 ). If there are cracks or other defects, the impeller must be replaced.
Inspect the O-ring ( 4 ) for nicks, cuts, and wear. Replace as necessary. 21208 5. Lubricate the pump housing with non-petroleum based lubricant, suitable for rubber, such as soapy water or glycerine 6. Reinstall the impeller. Reinstall the housing ( 2 ). 7. Install the hoses and hose clamps. 8. Mount the stationary bracket ( 1 ). Steering System 1. Check steering and throttle cables for cracks and wear. Check all along the length of the cable, as shown in the diagram. Replace the cables if you suspect that they are not in optimum condition. 2. Check steering system hoses for cracks, leaks, and wear. Replace any hoses that you suspect are not in optimum condition.
22850 88 VPA 7743722 English 10-2004