Page 432 - Foton Workshop Manual - Sauvana

12B-142 ENGINE MECHANICAL - CYLINDER BLOCK

INSPECTION

1. Check the surface flatness of the cylinder
block
(a). Measure the flatness of the top of the
cylinder block with a tight ruler and feeler.
Limit value:0.04mm
NOTICE:
If the flatness deviation is greater than the limit
value, grind the cylinder block surface mildly by
using the grinding machine, otherwise the cylinder
block should be replaced.

(b). Calculate the cylindricity of the cylinder
bore by using the bore table.
Standard value:
The first group:86.00~86.01mm
The second group: 86.01~86.02mm
The third group: 86.02~86.03mm
Cylinder bore cylindricity0.007mm
NOTICE:
If it wears serious, bore the cylinder and replace
the piston and cylinder piston rings; bore or
replace cylinder when necessary.

Page 432