wsm ME8200, Workshop Manual

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1-S50
ME8200, ME9000, WSM ENGINE
Free Length and Tilt of Valve Spring
1. Measure the free length (A) with vernier calipers. If the
measurement is less than the allowable limit, replace it.
2. Put the spring on a surface plate, place a square on the side of
the spring, and check to see if the entire side is contact with the
square. Rotate the spring and measure the maximum (B). If the
measurement exceeds the allowable limit, replace.
3. Check the entire surface of the spring for scratches. Replace it,
if any.
W1034954
Valve Spring Setting Load
1. Place the valve spring on a tester and compress it to the same
length it is actually compressed in the engine.
2. Read the compression load on the gauge.
3. If the measurement is less than the allowable limit, replace it.
W1035246
Free length (A)
Factory
spec.
Intake
valve 35.1 to 35.6 mm
1.3819 to 1.4016 in.
Exhaust
valve 41.7 to 42.2 mm
1.6417 to 1.6614 in.
Allowable
limit
Intake
valve 34.6 mm
1.3622 in.
Exhaust
valve 41.2 mm
1.6220 in.
Tilt (B) Allowable limit
1.0 mm
0.039 in.
Setting load / Setting
length
Factory
spec.
Intake
valve
63.547 N / 31.5 mm
6.48 kgf / 31.5 mm
14.256 lbf / 1.2401 in.
Exhaust
valve
117.6 N / 35 mm
12.0 kgf / 35 mm
26.4 lbf / 1.3780 in.
Allowable
limit
Intake
valve
45.864 N / 31.5 mm
4.68 kgf / 31.5 mm
10.296 lbf / 1.2401 in.
Exhaust
valve
100.0 N / 35 mm
10.2 kgf / 35 mm
22.5 lbf / 1.3780 in.
KiSC issued 03, 2007 A