jac — 00-01-foreword (EN)

23 10. Intake valve stem diameter Valve guide bore 0.039 Φ80.054 0.017 Φ80 Gapping 0.039~0.071 0.20 11. Exhaust valve stem diameter Valve guide bore 0.064 Φ80.079 0.017 Φ80 Gapping 0.064~0.096 0.25 12. Free height of valve spring Squareness of valve spring 48 Φ1.4 13. Idler A bearing outer diameter Idler A bearing inner diameter 0.025 Φ450.055 0.025 Φ450 Gapping 0.025~0.080 0.20 14. Cylinder liner bore Overtopping height of the cylinder liner to the body 0.060 Φ930.021 0~0.08 15. Axial runout clearance of camshaft Cam height of camshaft 42.02±0.05 Gapping 0.05~0.114 0.20 0.38 16.

Inner diameter of camshaft bearing bush Camshaft journal diameter 0.025 0 Φ50 0.025 Φ500.055 Gapping 0.025~0.080 0.12 17. Camshaft bearing bush deflection 0.02 0.10 18. Piston pin Piston pin hole 0 Φ310.005 0.010 Φ310.002 0 Φ340.005 0.010 Φ340.002 Gapping 0.002~0.015 0.03 19. Connecting rod big end thickness Crankshaft connecting rod journal bore 0 330.04 0.250 330.175 Gapping 0.175~0.290 0.35 20. Intake/exhaust valve cold clearance Gapping 0.3~0.4 21. Main shaft diameter Main bearing halfshell (after assembly) 0.068 Φ700.086 0.003 Φ700.033 Gapping 0.031~0.066 0.11 22.

Piston pin outer diameter Connecting rod bushing inner diameter 0 Φ310.006 0.020 Φ310.008 0 Φ340.006 0.020 Φ340.008 Gapping 0.008~0.026 0.05