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07– 90 07 If roundness or cylindricity of crankshaft main journal exceeds the specified value, replace the 8. Check crankshaft radial clearance. a. Clean the crankshaft main journals and main bearing shells. (1) on the crankshaft main journal, and make it c. Install the crankshaft frame and tighten the main bearing cap fixing bolts to the specified torque in order. measure the widest part of compressed feeler gauge. If crankshaft radial clearance is not within the For selection of main bearing shell ( ). 9. Check the crankshaft axial clearance. a. Clean the crankshaft main journals and main bearing shells. b. Install the crankshaft frame and tighten the main bearing cap fixing bolts to the specified torque in c. Push the crankshaft forward and backward and read the value from the dial indicator. If crankshaft axial clearance is not within the specified 1 RT21071120 RT21071130 Measurement Item Specification (mm) Crankshaft Radial Clearance 0.021 - 0.059 CAUTION Replace bearing shells in pairs. RT21071140 Measurement Item Specification (mm) Crankshaft Axial Clearance 0.070 - 0.265 |