Page 90 - Foton Workshop Manual - Sauvana

03-4
MAINTENANCE SPECIFICATION - ENGINE MECHANICAL SYSTEM (BJ486ZLEQ4)

Clearance between the Standard value 0.030~0.060mm
exhaust valve stem and
the conduit Limit value 0.12mm

The width of the contact of the valve seat 1.0~1.2mm
Clearance of the intake valves 0.22~0.28mm

Clearance of the exhaust valves 0.27~0.33mm
The axial clearance of Standard value 0.160~0.312mm
the piston connecting
rod Limit value 0.35mm

Clearance of the connecting rod neck of the 0.020~0.051mm
crankshaft
A 85.95~85.96mm

Piston diameter B 85.96~85.97mm
C 85.97~85.98mm

Clearance between the piston and the cylinder 0.04~0.06mm

Clearance between the The first ring groove 0.04~0.085mm
piston ring and the wall The second ring groove 0.03~0.07mm
of the piston ring Oil ring 0.03~0.13mm

The first ring 0.20~0.40mm
Piston ring end gap The second ring 0.35~0.55mm

Oil ring 0.20~0.90mm
The radial runout of the main journal of the 0.06mm
crankshaft

Crankshaft main journal diameter 57.981~58.000mm
Crankshaft connecting rod diameter 47.981~48.000mm

Ovality of the connecting rod neck of the crankshaft 0.02mm
The radial runout of the crankshaft main journal 0.020~0.051mm

Standard value 0.05~0.22mm
Crankshaft axial gap
Limit value 0.35mm

The maximum value of the flatness for the top 0.04mm
plane of the cylinder block

The first set 86.00~86.01mm
Cylinder bore inner The second set 86.01~86.02mm
diameter
The third set 86.02~86.03mm

Cylindricity of the cylinder hole 0.007mm

Page 90