3-72 ENGINE CRANKSHAFT THRUST BEARING • With the crankshaft, right-side thrust bearing and left-side thrust bearing inserted in the upper crankcase, measure the thrust clearance on the left side by using the thickness gauge. L: Left-side thrust bearing R: Right-side thrust bearing NOTE: Pull the crankshaft to the generator side, so that there is no clearance on the right-side thrust bearing. Thrust clearance: Standard: 0.060 – 0.110 mm (0.0024 – 0.0043 in) 09900-20803: Thickness gauge • If the thrust clearance exceeds the standard range, adjust the thrust clearance by the following procedures. CRANKSHAFT THRUST CLEARANCE ADJUSTMENT E • Remove the right-side thrust bearing and measure its thick- ness with a micrometer. L • If the thickness of the right-side thrust bearing is below stan- P dard, replace it with a new one and once again perform the thrust clearance measurement listed above, checking to make sure it is within standard. M Right-side thrust bearing thickness: A Standard: 2.420 – 2.440 mm (0.0953 – 0.0961 in) S 09900-20205: Micrometer (0 – 25 mm) • If the right-side thrust bearing is within the standard range, reinsert the right-side thrust bearing and remove the left-side thrust bearing. • As shown in the illustration, measure the clearance by using a thickness gauge before inserting the left-side thrust bearing. 09900-20803: Thickness gauge • Select a left-side thrust bearing from the selection table. (3-73)