146684-3520 ZEXEL 9 461 616 223 BOSCH POTENTCIOMETER 9461616223 1466843520 8970917580

1. Loosen the tension on water pump drive V-belt (1), and remove it from the engine. Remove eight bolts (2) and damper (3) from the crankshaft pulley. 2. Remove four bolts (4), the washer and crankshaft pulley (5) from the end of the crankshaft. 3. Carefully make three evenly spaced holes in the crankshaft front seal with a hammer and sharp punch. Use Tool (A) to remove crankshaft front seal (1). Do not damage the flange of the crankshaft during seal removal. The following steps are for the installation of the vibration damper, crankshaft pulley and crankshaft front seal.4. Be sure the flange of the crankshaft is thoroughly clean prior to installing the crankshaft front seal and the crankshaft pulley. 5. With the shipping sleeve in position, install the crankshaft front seal using Tool (B). The distance between the front face of the crankshaft front seal and the front face of the front housing must be 2.5 0.5 mm (.10 .02 in) after seal installation. See the topic "Crankshaft Seals" in the 3114 & 3116 Diesel Truck Engines Specifications module, Form No. SENR6436 for further details.6. Remove the shipping sleeve from the crankshaft front seal. Apply clean engine oil to the surface of the crankshaft pulley that makes contact with the crankshaft front seal.7. Put crankshaft pulley (5) in position on the crankshaft, and install the washer and four bolts (4) that hold it. Tighten the bolts to a torque of 190 30 N m (140 22 lb ft).8. Install water pump drive V-belt (1).9. Adjust the tension of water pump drive V-belt (1). See the topic "Alternator And Fan Drive Belts, Inspect/Adjust/Replace" in the 3114 & 3116 ATAAC Diesel Truck Engine Operation & Maintenance Manual, Form No. SEBU6723. Also, refer to the "Belt Tension Chart" in the 3114 & 3116 Diesel Truck Engines Specifications module, Form No. SENR6436.