Crankshaft: Testing and Inspection

END PLAY
Place checking gauge/dial indicator 87 92 194 with holder 87 90 727, or equivalents on the end of the cylinder block with the point of the checking gauge against the crankshaft. Push the crankshaft lengthwise. Maximum permitted clearance is 0.1 - 0.76 mm. remove the checking gauge.

RUNOUT
Place checking gauge/dial indicator 87 92 194 with holder 87 90 727, or equivalents on the cylinder block with the point of the gauge on the main journal. Turn the crankshaft in a steady motion. Maximum permitted runout is 0.05 mm. Remove the checking gauge.





TAPER AND OUT OF ROUND
Clean the crankshaft and measure the crankpins using a micrometer. Measurements should be taken at several points around the circumference. The out-of-round of the main journals and the big-end journals must not exceed 0.003 mm. If the measurements are close to or in excess of this wear, the crankshaft should be ground down to the specified undersize.