105643-0930 ZEXEL 9 420 615 622 BOSCH AUTOM. ADVANCE MECHANISM 9420615622 1056430930 me731594

Cooling system components identified are: 1-Fan mounting and drive. 2-Water temperature regulator and housing. 3-Water pump.Water Temperature Regulator
1-Seal. Install seal with lip toward top of cover. 2-Washer.Fan Drive
5F7465 Pullertwo 3/8" NC bolts4 in. (101,6 mm) longand flat washers.
Tools required to remove pulley (1): 5F7465 Puller, two 3/8" NC bolts, 4 in. (101,6 mm) long, and flat washers. Refer to the GENERAL INSTRUCTIONS.Water Pump Disassembly And Assembly
Refer to SERVICE GUIDE for Preliminary Information.8B7548 Push Puller8H663 Bearing Pulling Attachment8B7560 Step Plate8H684 Ratchet Box Wrench1/2" NC Forcing Screw. 1 Install seal assembly in the following manner: a. Wet the outside diameter of the rubber cup-ceramic ring assembly, and the pump housing seal bore, with water. Using hand pressure only, install the rubber seat and ceramic seat squarely in the pump housing bore.b. Wet the inside diameter of the rubber bellows-carbon washer assembly and the water pump shaft with water. Using hand pressure only, install the rubber bellows-carbon washer assembly on the water pump shaft until carbon washer contacts the ceramic ring.c. Install the spring, then install the impeller.2, 4, 5 Remove bearings and gear using an 8B7548 Push Puller, 8H663 Bearing Pulling Attachment, 8B7560 Step Plate, 8H684 Ratchet Box Wrench. Refer to the GENERAL INSTRUCTIONS. Heat bearings and gear to 300° F. (149° C.) before installing on water pump shaft. Do not install shaft in pump housing until gear and bearings have cooled to room temperature.3 Use a 1/2" NC forcing screw to remove impeller. Install the impeller by pressing it onto the water pump shaft until it bottoms on the pump shaft shoulder.