Measure crankshaft end play, using a dial indicator. See CRANKSHAFT, MAIN & CONNECTING ROD BEARINGS under ENGINE SPECIFICATIONS. If end play exceeds specification, inspect thrust washers and thrust surface of crankshaft located in cylinder block journal No. 4. Replace worn components as necessary. Thrust washer thickness is fixed and cannot be changed by grinding or shimming. Install thrust washers with grooved side out.
| CAUTION | Whenever any crankshaft bearing or connecting rod bearing is replaced, it is necessary to start engine and idle with no loads and transmission in Park or Neutral, until radiator fan comes on. Allow engine to idle for an additional 15 minutes. |