Maintenance V-Belt Engines The following engines use two separate V-belts which may occasionally have to be adjusted for tension: 4.3GL and 5.0GL. CAUTION! These belts are heavy duty. Do not replace with automotive belts. Following is a description of the dual belt system: A – Alternator Belt (arrow indicates position to be used for checking belt tension). B – Circulating Pump Pulley. C – Crankshaft Pulley. D – Alternator Pulley. E – Power Steering Belt (arrow indicates position to be used for checking belt tension). F – Power Steering Pump Pulley. 7743722 - Downloaded from www.volvopenta.com 13/05/2008 20:17:06 22844 V-Belt Tension Belt tension is determined by belt deflection. 1.
With the engine stopped, the belt should be tight enough so that it will deflect ј inch (6 mm) when pressed with a finger, or 75 ± 10 pounds (333.6 ± 44.5 N) when using a belt tension gauge. 2. If the belt is too tight, excessive belt and bearing wear can occur. 3. If it is too loose, slippage can occur, resulting in belt wear, poor circulating pump, alternator, and power steering operation. Belt tension should be checked after 10 hours of serv- ice and every 5 hours thereafter. 82 VPA 7743722 English 10-2004