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Download 3208 MARINE ENGINE
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59 Maintenance Section Auxiliary Water Pump - Inspect i00911249 i00912007 Auxiliary Water Pump - Inspect Belt - Inspect/Adjust/Replace SMCS Code: 1371-040 SMCS Code: 1357-039 Impellers and seals require periodic inspection. Impellers have a service life that is limited. The service life depends on the engine operating conditions. Inspection Inspect the components more frequently when the pump is exposed to debris, sand, or other abrasive materials. Inspect the components if the pump is operating at a differential pressure of more than 103 kPa (15 psi). After the initial check, the belt tension should be checked at Every 250 Service Hours or Three Months. Check the following components for wear or damage: • Bearings • Cam • Impeller • Seals • Wear plate If wear or damage is found, replace the components which are worn or damaged. Use the proper repair kit for the pump. Refer to the Disassembly and Assembly for more information on servicing the auxiliary water pump. Belt tension should be checked initially between the first 20 to 40 hours of engine operation. To maximize the engine performance, inspect the belts for wear and for cracking. Replace belts that are worn or damaged. For applications that require multiple drive belts, replace the belts in matched sets. Replacing only one belt of a matched set will cause the new belt to carry more load because the older belt is stretched. The additional load on the new belt could cause the new belt to break. If the belts are too loose, vibration causes unnecessary wear on the belts and pulleys. Loose belts may slip enough to cause overheating. If the belts are too tight, unnecessary stresses are placed on the pulley bearings and on the belts. This may shorten the service life of the components. Remove the belt guard. Inspect the condition and adjustment of the alternator belts and accessory drive belts (if equipped). If the belts do not require replacement or adjustment, install the belt guard. If the belts require adjustment or replacement, perform the following procedure to adjust the belt tension.
