Camshaft/Camshaft 10. Measure camshaft journal outside diameter. CAMSHAFT JOURNAL SPECIFICATIONS Item New Part Wear Tolerance M36311 -UN-29JAN90 Journal Diameter 34.90—34.91 mm 34.80 mm (1.374—1.3745 in.) (1.370 in.) If journal diameter is less than 34.80 mm (1.370 in.), replace camshaft. M98,2025K,18 -19-11NOV85 CTM2 (19APR90) 25-8 16, 18, 20 & 24HP Onan Engines AllTractorManuals.com 130495 5. Remove flyballs. Inspect flyballs for grooved or flat spots, replace if necessary. 6. Inspect flyball spacer (A) for wear or damage. Replace camshaft gear if necessary. -UN-29JAN90 NOTE: The flyball spacer, plate, and camshaft gear are serviced as an assembly only. IMPORTANT:
If camshaft gear is replaced, always replace crankshaft gear also. M36310 7. Inspect camshaft gear for chipped or broken teeth. Replace camshaft gear if necessary. M98,2025K,16 -19-09OCT85 25 8 IMPORTANT: Be sure to hold camshaft while removing camshaft gear. 8. Remove gear using a 1 in. deep-well socket, 1 in. driver disk, and a press. -UN-14JUL89 9. Remove key. M30688 M98,2025K,17 -19-11NOV85