(1) Removal of the main oil pressure regulator: See Figure 2-141 for disassembly of the main oil pressure regulator. Exercise extreme caution when removing the locating plug 1, as the pressure regulator spring 2 is compressed.
(2) Removal of the viscosity sensor: Use a 7/16-inch sleeve.
Use a wrench, an extension rod, and a ratchet wrench to disassemble the viscosity sensor, as shown in Figure 2-142.
Figure 2-139 Removing the crankshaft using a crane
Figure 2-140 Marking on the surface of the upper bearing bush locating tongue
Figure 2-141 Disassembly of the main engine oil pressure regulator
Figure 2-142 Disassembly of the viscosity sensor
(3) Removal of the high oil pressure regulator. See Figure 2-143 for the removal of the high oil pressure regulator. During removal, use a light puller (part number 3375784) to remove the locating plug, regulator spring, washer, and valve disc. The valve seat will remain in the cylinder block.
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