Yamaha EF2800i - Inverter Generator, Service Manual

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5-3
SPEC
MAINTENANCE SPECIFICATIONS
MAINTENANCE SPECIFICATIONS
ENGINE
Unit EF2800i
Piston: mm (in)
Piston clearance 0.015 ~ 0.040 (0.00059 ~ 0.00157)
<Limit> 0.100 (0.0039)
Piston skirt “D” 66.0 (2.598)
<Limit> 65.9 (2.594)
Measuring point “H” 10.0 (0.4)
Oversize 1st 66.25 (2.6083)
2nd 66.50 (2.6181)
Piston pin hole inside diameter 16.002 ~ 16.013 (0.6300 ~ 0.6304)
<Limit> 16.020 (0.6307)
Piston pin: mm (in)
Piston pin diameter 15.995 ~ 16.000 (0.6297 ~ 0.6299)
<Limit> 15.950 (0.6280)
Piston ring: mm (in)
Top ring
Type Barrel face
Dimensions “B
×
T” 1.5
×
2.7 (0.059
×
0.106)
End gap 0.2 ~ 0.4 (0.008 ~ 0.016)
<Limit> 0.9 (0.0354)
Side clearance 0.04 ~ 0.08 (0.0016 ~ 0.0031)
<Limit> 0.1 (0.0039)
2nd ring
Type Taper
Dimensions “B
×
T” 1.5
×
2.7 (0.059
×
0.106)
End gap 0.2 ~ 0.4 (0.008 ~ 0.016)
<Limit> 0.9 (0.0354)
Side clearance 0.02 ~ 0.06 (0.0008 ~ 0.0024)
<Limit> 0.1 (0.0039)
Oil ring
Type Solid
Dimensions “B
×
T” 2.5
×
2.7 (0.098
×
0.106)
End gap 0.2 ~ 0.4 (0.008 ~ 0.016)
<Limit> 0.9 (0.0354)
Cylinder head: mm (in)
Warpage limit 0.05 (0.002)
Cylinder: mm (in)
Inside diameter “D” 66.00 ~ 66.02 (2.5984 ~ 2.5990)
<Limit> 66.020 (2.5990)
Taper limit 0.05 (0.002)
Warpage limit 0.05 (0.002)