Page 95 - Foton Workshop Manual - Tunland (AT)

SERVICE SPECIFICATIONS - ENGINE MECHANICAL SYSTEM 03-11

Thickness limit of intake valve head 1.10mm
Thickness limit of exhaust valve head 1.90mm

Valve tappet diameter 5.98～5.996mm
03
Diameter of valve guide hole 6.042～6.062mm
Angle of intake valve seat 30°

Angle of exhaust valve seat 45°
Standard value of inside diameter (exhaust valve) of cylinder cap
30.922～30.948mm
insert ring

Standard value of inside diameter (intake valve) of cylinder cap insert
33.485～33.485mm
ring
Valve Spring

Maximum skewness 1.5mm

Standard tension (compressed to 31.563mm) 218～242.8 Nm
Free length 42.6 mm

Piston Ring

Piston Pin Outer Diameter Standard 34.494～34.50mm

Press Force (kg) 755～1750
Axial Clearance at Larger End of Connecting
Standard 0.10～0.35mm
Rod

Side Clearance between Piston Ring & Piston Second piston ring 0.05～0.10mm
Ring Groove Third piston ring 0.04～0.09mm

Crankshaft

Axial Clearance Standard 0.115～0.365mm

Main Shaft Journal Standard 73.987～74.013mm

Connecting Rod Journal Standard 58.990～59.010mm

Axial Clearance of Main Shaft Standard 0.041～0.105mm
Cylinder Block

Upper Surface Flatness Max Flatness 0.010mm

Inner Diameter of Cylinder Hole Standard 93.99～94.01mm

Page 95