SsangYong Korando II (1996-2006 year). Manual — part 98
1B2 -- 102 M161 ENGINE MECHANICAL
DAEWOO MY_2000
CYLINDER BORE
Group Code Letter and Cylinder Bore Size
Engine
Group Code Letter of Cylinder
Piston Type to be Used
Cylinder Bore Size (mm)
A
A or X
φ 90.906 -- φ 90.912
X
A, X or B
φ 90.906 -- φ 90.912
E23
B
X or B
φ 90.912 -- φ 90.918
X + 5
X + 5
φ 90.950 -- φ 90.968
X + 10
X + 10
φ 91.000 -- φ 91.018
A
A or X
φ 89.900 -- φ 90.906
X
A, X or B
φ 89.906 -- φ 89.912
E20
B
X or B
φ 89.912 -- φ 89.918
X + 5
X + 5
φ 89.950 -- φ 89.968
X + 10
X + 10
φ 90.000 -- φ 90.018
M161 ENGINE MECHANICAL 1B2 -- 103
DAEWOO MY_2000
Group Code Letter of Cylinder
Group Code Letter 1)
Cylinder Bore Size (mm)
Standard Size
A
φ 89.900 -- φ 89.906
E20 : φ 89.9
E23 φ 90 9
X
φ 89.906 -- φ 89.912
E23 : φ 90.9
B
φ 89.912 -- φ 89.918
1st Repair Size
(St d d Si
0 25)
A
φ 90.150 -- φ 90.156
p
(Standard Size + 0.25)
X
φ 89.156 -- φ 90.162
B
φ 90.162 -- φ 90.168
2nd Repair Size
(St d d Si
0 5)
A
φ 90.400 -- φ 90.406
p
(Standard Size + 0.5)
X
φ 90.406 -- φ 90.412
B
φ 90.412 -- φ 90.418
1) The group code letters are carved on the surface of the piston crown and in the mating surface of the crankcase.
Service Data Standard
Wear Limit in Longitudinal and Transverse Direction
0.1 mm
Permissible Deviation of Cylinder Out--of--round
When new
0.007 mm
y
Wear limit
0.05 mm
Permissible Deviation of Rectangular Cylinder Height (Except Chamfered Area)
0.05 mm
Basic Peak--to--valley Height After Final Honing and Brushing
0.003 -- 0.006 mm
Chamfer Angle
75°
Honing Angle
50° ± 10°
Measurement of Cylinder Bore
1. Clean the cylinder wall.
2. Using a internal diameter gauge, measure the bore
size in axial and transverse direction at three points
(1,2,3).
1, 2, 3 Measuring Points
A.
Axial Direction
B.
Transverse Direction
a.
Location of the No.1 Piston Ring at TDC
b.
Location of the Piston BDC
c.
Location of the Oil Ring at BDC
Chamfer Angle
1B2 -- 104 M161 ENGINE MECHANICAL
DAEWOO MY_2000
CRANKCASE MATING SURFACE
Service Data Standard
Height of The Crankcase ‘H’ (When new)
289.35 -- 289.45 mm
Minimum Height After Milling
289.05 mm
Flatness
Crankcase Upper Mating Surface
0.03 mm
Crankcase Lower Mating Surface
0.04 mm
Permissible Deviation of Parallelism of The
U
t L
M ti
S f
Axial Direction
0.1 mm
Upper to Lower Mating Surface
Transverse Direction
0.05 mm
Peak--to--valley Height
Crankcase Upper Mating Surface
0.012 -- 0.009 mm
y
g
Crankcase Lower Mating Surface
0.025 -- 0.020 mm
M161 ENGINE MECHANICAL 1B2 -- 105
DAEWOO MY_2000
Chamfering Procedure
1. Chamfer angle : 75°
2. Polish the lower chamfered area evenly with a grinder
after finishing the chamfering with a suitable tool
(e.g., hand milling cutter).
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