SECTION 1 - GENERAL SPECIFICATIONS 13 F2B CURSOR EURO 4 ENGINES Print P1D32C002 E Base - September 2006 Water pump Figure 15 44915 WATER PUMP SECTION The water pump consists of: rotor, seal bearing and control pulley. Make sure that the pump casing has no cracking or ! water leakage; otherwise, replace the entire pump. Thermostat THERMOSTAT OPERATION VIEW Figure 16 TO THE HEATER TO BY-PASS FROM THE HEAD 45357 Water circulating in the engine Figure 17 TO THE HEATER TO RADIATOR TO EXPANSION TANK FROM THE HEAD 45358 Water issuing from thermostat Check thermostat operation, in case of doubts, replace it. Start of stroke temperature 84 _C ± 2 _C Minimum stroke 15 mm at 94 _C ± 2 _C