2003 SSANGYONG MUSSO engine

OM600 ENGINE MECHANICAL 1B3-127
CHECK AND MACHINING OF VALVES
Preceding Works : Removal of cylinder headRemoval of the vale spring Removal of the valve
I Valve Length
W Camshaft Cam Basic Diameter X Distance (Camshaft Basic Bore - Valve Stem) Y Half Camshaft Basic Bore Diameter
Z Distance (Cylinder Head Cover Parting Surface - Valve Stem)

1B3-128 OM600 ENGINE MECHANICAL
Intake ValveExhaust Valve
Item
Valve Disc Diameter ‘d’
Valve Disc Height ‘h’
Setting Angle “ ” or Machining the Valve
Valve Stem Diameter ‘d1 ’
Valve Length ‘I’ Intake Valve
37.90 - 38.10 mm 1.7 mm45 °
7.955 - 7.970 mm
106.20 - 106.60 mm 105.30 - 105.70 0.03 mm Exhaust V
alve
34.90 - 35.10 mm 1.7 mm45 °
9.945 - 8.960 mm
106.20 - 106.60 mm 105.30 - 105.70 mm 0.03 mm
Standard Repair
Max. Permis Sible Runout at Valve Stem and Valve Seat
W = 38.0 ± 0.2mm
Matching ValvesCamshaft Cam Basic Dia.
Size (x)
Size (x) Size (x) 19.5 - 20.3mm
20.4 - 21.4mm
21.4 - 21.97mm W = 36.6 ± 0.2mm
Camshaft Cam Basic Dia.
19.5 - 20.1mm
20.2 - 21.2mm
21.2 - 21.97mm Valve to be Used
Use machined valve, if needed
new repair valve
I = 105.5 ± 0.2mm Reuse valve
Use standard size
valve
I = 106.4 ± 0.2mm

OM600 ENGINE MECHANICAL 1B3-129
Tools Required 001 589 32 21 00 Dial Gauge Checking and Machining
1. Clean the valves and do visual check.Valves with wobbled valve disc, with worn or scored valve stem should be replaced.
2. Measure valve disc height ‘h’.
Service data
Intake
Exhaust 1.7 ± 0.15 mm 1.7 ± 0.15 mm
3. Machine the valve. Notice Pay attention to setting angle ‘ ’ .
Commercial Tool
Valve corn grinding machine
4. Measure radial runout between valve stem and valve seat.
Limit Max. 0.03mm
Dial Gauge 001 589 32 21 00

1B3-130 OM600 ENGINE MECHANICAL
10. Measure distance ‘z’ (cylinder head cover parting surface
- valve stem).
5. Clean the vales, valve seats and valve guides.
6. Coat the valve stem with oil and insert it into valve guide.
7. Insert the valves (1) into the valve guides according to
marking.
8. Measure amount by which the valve arrears ‘a’.
Arrears ‘a’ 0.1 - 0.7 mm
Notice If out of standard, replace the valve seat ring.
9. Measure camshaft cam basic diameter (w).
Diameter ‘w’ 38 ± 0.2 mm
or 37.6 ± 0.2 mm

OM600 ENGINE MECHANICAL 1B3-131
11. The distance ‘x’ (camshaft basic bore - valve stem).
‘x’ = ‘z’ - ‘y’.
Determine the valve to use according to this measurement (See ‘matching valves ’)
Example) Measured value ‘w’ = 38.2 mm
Measured value ‘z’ = 36.5 mm
Value ‘y’ = 15.5 mm
‘x’ = 36.5 - 15.5 = 21.0mm
In this case according to ‘Matching valves ’ table, the
installed valve may be used.

1B3-132 OM600 ENGINE MECHANICAL
MACHINING OF VALVE SEAT
Preceding Work : Removal of prechamberRemoval and inspection of valve, replace if necessary Inspection of valve guide, replace if necessary
1 Valve
2 Valve Seat Ring
3 Cylinder Head
4 Valve Guide a Valve Seat Angle
b Valve Seat Free Angle

OM600 ENGINE MECHANICAL 1B3-133
Service DataItem
Valve Arrears ‘a’
Valve Seat W idth ‘ b ’
Valve Seat Angle ‘ ’
Valve Seat Free Angle ‘ ’
Permissible Radial Runout
Valve Length ‘I’ Intake
0.1 - 0.7 mm1.2 - 1.7 mm 45°
65 °
0.03 mm
106.20 - 106.60 mm105.30 - 105.70 mm Exhaust
0.1 - 0.7 mm1.5 - 2.0 mm 45°
65 °
0.03 mm
106.20 - 106.60 mm105.30 - 105.70 mm
Standard Repair
w = 38.0 ± 0.2 mm
Matching Valves
Camshaft cam basic dia.
Size (x)
Size (x) Size (x) 19.5 - 20.3mm
20.4 - 21.4mm
21.4 - 21.97mm w = 37.6 ± 0.2 mm
Camshaft cam basic dia.
19.5 - 20.1mm
20.2 - 21.2mm
21.2 - 21.97mm Valve to be used
Use machined valve, if needed
use pair valve
1 = 105.5 ± 0.2mm
Reuse valve
Use standard size valve
I = 106.4 ± 0.2mm
Commercial Tools
Hunger D-8000 M ünchen 70
Type Ventilknecht K2000 Order No. 221 00 100HungerD-8000 M ünchen 70
Type VDS 1AOrder No. 236 03 308HungerD-8000 M ünchen 70
Order No. 217 93 601
Cylinder Head Clamping Devie
Valve Seat Turning Tool
Test Sat for Valves

1B3-134 OM600 ENGINE MECHANICAL
Machining ProcedureValve machining is required : - When the valve is leaking.- When replacing the valve.- When replacing the valve guide.- When replacing the valve seat or valve seat ring.
1. Machine the valve seat (a=45 °).
2. Measure valve seat width ‘b’.
Valve seat
width ‘b’1.2 - 1.7 mm 1.5 - 2.0 mm
Intake
Exhaust
3. If the specification is exceeded, the valve seat width has to be corrected at the lower free angle of ‘ ’=65 °.
4. Measure radial runout.
Runout Max. 0.03mm