Maintenance Belt Adjustments CAUTION! To prevent possible injury caused by someone inadvertently starting the en- gine, remove the ignition keys from each starting location (especially if the engine room/engine compartment cannot be seen from various remote starting positions such as a flybridge or enclosed cabin). Serpentine Belt Engines Some engine models use a serpentine belt, which is a continuous-loop belt threaded through the alternator pulley, circulating pump pulley, idler pulley, and power steering pump pulley. This single belt replaces three separate belts (alterna- tor, circulation pump, and power steering belts).
The serpentine belt tension is adjusted automatically and requires no tension adjustments. However, at least once per year, have your Volvo Penta dealer check the serpentine belt for wear. An ideal time to have this check performed is when you have the gimbal bearing lubricated. 7743722 - Downloaded from www.volvopenta.com 13/05/2008 20:17:06 21203 Alternatively, you may check the indicators, located on the automatic tensioner housing, to determine the amount of wear. When tick marks C & D coincide (8.1L engines) and mark B is centered between tick marks A (all other engines), it’s time to replace the serpentine belt. 22902 22901 VPA 7743722 English 10-2004 81