20—210 Removal and installation of coolant pump   Tightening torques Model Nm   116 6-10   Drain plug of radiator   123, 126 1.5-21)   Viscofan coupling to coolant pump 20-25   Coolant pump to…

    20-490 Illustrated table thermostat layout   1202-8431   40    Temperature switch 100 °C (model 116, engine 617.950 only) 41    Sealing ring 42    Combination screw (3 each) 43    Cap coolant thermostat housing…

    20—430 Checking of expansion tank closing cover   Expansion tank closing cover   Pressure relief valve opens at new closing cover 1-Oio’]5 bar gage pressure used closing cover 1.0—0.2 bar gage pressure   Vacuum valve…

    20—425 Reconditioning of radiator   Special tools   Tester for cooling system   g%\ I 001 589 48 21 00 605 589 00 25 00 123 589 12 09 00 Radiator cap with hose for…

    20—420 Removal and installation of radiator   Installation dimensions for cooler — fan and fan — fan cover   Model Fan distance “a” for cooler approx. mm Fan distance to fan cover approx. mm A…

    20—310 Viscofan coupling, temperature-controlled   Operation   The viscofan coupling is a service-free, hydraulic coupling which operates in dependence of tempera­ture as well as infinitely variable. When the engine is started (cold start) the fan…

    20—230 Removal and installation of coolant pump housing   Tightening torques Nm   Model 116 6-10   Radiator drain plug   Model 123, 126 1.5-21)   Coolant pump housing to cylinder crankcase 27-33   Viscofan…

    20—225 Sealing coolant pump   Self-made tools   Pressing-off disk for impeller Pressing-in sleeve   1    Fan hub                                 5 …

    20—220 Reconditioning of coolant pump   Self-made tools   Spacing plate b = 2 mm Pressing-in sleeve   1    Fan hub 2   Coolant pump shaft with compact bearing 3   Bearing housing 5   Slide ring…

    20—110 Removal and installation of coolant thermostat   Tightening torques Type Nm   Screws for housing cover coolant thermostat 9-11   116 6-10   Drain plug for radiator   123, 126 1.5-21)   M This…