SsangYong Rexton. Service manual — part 391

DIESEL ENGINE MECHANICAL 1B3-139

SSANGYONG Y200

YAD1BJK0

CHECK AND MACHINING OF VALVES

Preceding Works: Removal of cylinder head

Removal 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)

SSANGYONG Y200

1B3-140 DIESEL ENGINE MECHANICAL

Intake Valve

Exhaust Valve

YAD1BJM0

YAD1BJL0

Matching Valves

Item

Valve Disc Diameter ‘d’

Valve Disc Height ‘h’

Setting Angle “

α

” o r Machining the Valve

Valve Stem Diameter ‘d1’

Valve Length ‘I’

Standard

Repair

Max. Permissible Runout at Valve Stem and Valve Seat

Exhaust Valve

34.90 - 35.10 mm

1.7 mm

45°

9.945 - 8.960 mm

106.20 - 106.60 mm

105.30 - 105.70 mm

0.03 mm

Intake Valve

37.90 - 38.10 mm

1.7 mm

45°

7.955 - 7.970 mm

106.20 - 106.60 mm

105.30 - 105.70

0.03 mm

Valve to be used

Use machined valve,

if needed

new repair valve

I = 105.5 ± 0.2 mm

Reuse valve

Use standard size

valve

I = 106.4 ± 0.2 mm

Size (x)

Size (x)

Size (x)

Camshaft Cam Basic Dia.

W = 38.0 ± 0.2 mm

19.5 - 20.3 mm

20.4 - 21.4 mm

21.4 - 21.97 mm

Camshaft Cam Basic Dia.

W = 36.6 ± 0.2 mm

19.5 - 20.1 mm

20.2 - 21.2 mm

21.2 - 21.97 mm

DIESEL ENGINE MECHANICAL 1B3-141

SSANGYONG Y200

YAD1BJN0

YAD1BJP0

Tools Required

001 589 32 21 00 Dial Gauge

Commercial Tool

Valve corn grinding machine

Checking and Machining Procedure

1. Clean the valves and do visual check.

Notice: Valves with wobbled valve disc, with worn
or scored valve stem should be replaced.

2. Measure valve disc height ‘h’.

3. Machine the valve.

Notice: Pay attention to setting angle ‘

α

’ .

4. Measure radial runout between valve stem and

valve seat with a dial gauge 001 589 32 21 00.

Limit

Service data

Intake

Exhaust

1.7 ± 0.15 mm

1.7 ± 0.15 mm

Max. 0.03 mm

YAD1BJQ0

SSANGYONG Y200

1B3-142 DIESEL ENGINE MECHANICAL

YAD1BJR0

YAD1BJS0

YAD1BJT0

YAD1BJU0

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’.

Notice: If out of standard, replace the valve seat
ring.

10. Measure distance ‘z’ (cylinder head cover parting

surface - valve stem).

Arrears ‘a’

0.1 - 0.7 mm

38 ± 0.2 mm

or 37.6 ± 0.2 mm

Diameter ‘w’

9. Measure camshaft cam basic diameter (w).