Daewoo D1146, Maintenance Manual

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D1146/D1146TI/DE08TIS
MAINTENANCE MANUAL
49
Printed in Jan. 2001 PS-MMA0415-E1A
(2) Inspection of cylinder head
1) Check for the cylinder head.
z
Remove carbon from the cylinder head lower surface, and then should be
careful not to scratch the surface.
z
Check any crack or damage that can not found by naked eyes through the
hydraulic or magnetic particle test.
2) Distortion of lower surface
z
As shown in figure, measure the
cylinder head's distortion at 6 directions
with horizontal ruler and clearance
gauge.
z
If the measured value is beyond the
limit value, correct it by means of the
fine grinding paper or grinding machine.
z
If it is beyond the max. allowable value,
replace the cylinder head
Lower face warpage and height
Standard Limit
Warpage 0.2 mm or less 0.3 mm
Thickness : t
(reference)
109.9
∼
110.1 mm 108.4 mm
3) Flatness
Check the flatness of the installing
surface of cylinder head's intake and
exhaust manifolds with horizontal ruler
and clearance gauge.
Standard Limit
0.05 mm 0.2 mm
4) The hydraulic test
The hydraulic test of cylinder head is
same as the cylinder block test.
M1067
G1093