Yamaha EF4500iSE Theory & Diagnostics Manual page 206

Yamaha Generator Theory & Diagnostics Guide
Valve:
Valve
Face diameter "A"
Stem diameter "B"
<Limit>
Stem length "C"
Valve face contact
width "D"
<Limit>
Valve seat contact width IN
<Limit>
Valve stem runout limit
"θ"
Valve guide
Guide inside diameter
Stem to guide clearance IN
Valve clearance (cold)
Push rod:
Runout limit
MAINTENANCE SPECIFICATIONS
Unit
mm (in)
IN
EX
IN
EX
IN
EX
IN
EX
IN
EX
IN
EX
EX
IN
EX
IN
EX
EX
IN
EX
mm (in)
EF6600DE YG6600D
32.0 (1.26)
27.0 (1.06)
5.948 ~ 5.963 (0.2342 ~ 0.2348)
5.940 ~ 5.955 (0.2339 ~ 0.2344)
5.9 (0.2323)
5.9 (0.2323)
88.1 (3.47)
87.9 (3.46)
0.7 ~ 0.9 (0.0276 ~ 0.0354)
0.7 ~ 0.9 (0.0276 ~ 0.0354)
1.4 (0.0551)
1.4 (0.0551)
0.7 ~ 0.9 (0.0276 ~ 0.0354)
0.7 ~ 0.9 (0.0276 ~ 0.0354)
1.4 (0.0551)
1.4 (0.0551)
0.01 (0.0004)
90°
6.000 ~ 6.012 (0.2362 ~ 0.2367)
6.000 ~ 6.012 (0.2362 ~ 0.2367)
0.037 ~ 0.064 (0.00146 ~ 0.00252)
0.045 ~ 0.072 (0.00177 ~ 0.00283)
0.08 ~ 0.12 (0.0031 ~ 0.0047)
0.08 ~ 0.12 (0.0031 ~ 0.0047)
0.5 (0.02)
3-130
24
SPEC
YG6600DE