Maintenance Standards; Engine - Zenoah HB2311EZ Workshop Manual

7-1 Engine

Maintenance Item Unit
Category
－ － － －
Engine Type － － － － G23L
HB2302
Model
HB2311EZ
Blower Model － － － －
Standard
φ32.00
Cylinder Bore mm (in.)
(1.2598)
φ31.945
(1.2577)
Piston Diameter
mm (in.)
(Skirt)
～φ31.960
(1.2583)
1.51
Top mm (in.)
(0.0594)
Piston Ring
Groove Width
1.51
2nd mm (in.)
(0.0594)
φ7.990
Piston Pin Hole mm (in.)
(0.3146)
0.040
(0.0016)
Clearance Between
mm (in.)
Piston and Cylinder
～0.080
Piston
(0.0031)
0.02
(0.0008)
Top mm (in.)
Clearance
～0.06
Between
(0.0024)
Piston
0.02
Groove and
(0.0008)
Piston Ring
2nd mm (in.)
～0.06
(0.0024)
0.010T
Fitting Between
(0.00039T)
mm (in.)
Piston Pin and
(0.00024L)
～0.006L
Piston Pin Hole
(0.00024L)
0.10
End Gap at Cylinder (0.0039)
mm (in.)
Skirt
～0.30
Piston Ring
(0.0118)
1.5
Width mm (in.)
(0.0591)
φ8.00
Piston Pin Diameter mm (in.)
(0.3150)
φ11.00
Small End Bore mm (in.)
(0.4331)
Connecting
Parallelism of
Rod
Large/ Small End - 0.15/ 100
Bores
Diameter at Main
φ12.00
mm (in.)
Crankshaft
Bearing (0.4724)
(Starter
φ12.00
Side)
Diameter at Oil Seal mm (in.)
(0.4724)
Diameter at Main
φ12.00
mm (in.)
Bearing (0.4724)
Crankshaft
(Fan Side)
φ12.00
Diameter at Oil Seal mm (in.)
(0.4724)
Eccentricity mm (in.) -
21.9
(0.8622)
Crankshaft Width Between 22.0
mm (in.)
Complete Crank Webs (0.8661)
Axial Play mm (in.) -
Main Bearing (Ball Bearing) -
－
generated

7. Maintenance Standards

Handheld Blower
GZ25N GZ30N G4K
EBZ3000/ 3000RH
HBZ2601 EB4300
EBZ3050RH
Limit Standard Limit Standard Limit
φ32.06 φ34.00 φ34.06 φ38.00 φ38.06
(1.2622) (1.3386) (1.3409) (1.4961) (1.4984)
φ33.960 φ39.960
φ37.950
(1.3370)
φ31.86 φ33.86 (1.4941) φ37.86
(1.2543) (1.3331) ～φ37.970 (1.4906)
～φ33.975 ～φ39.975
(1.4949)
(1.3376)
1.60 1.03 1.30 1.23 1.30
(0.0630) (0.0406) (0.0512) (0.0484) (0.0512)
1.60 1.01 1.30 1.21 1.30
(0.0630) (0.0398) (0.0512) (0.0476) (0.0512)
φ8.04 φ7.995 φ8.04 φ8.995 φ9.04
(0.3165) (0.3148) (0.3165) (0.3541) (0.3559)
0.025 0.030 0.025
(0.0010) (0.0012) (0.0010)
0.20 0.20 0.20
(0.0079) (0.0079) (0.0079)
～0.065 ～0.075
(0.0026) (0.0030)
0.04 0.04 0.08
0.10 (0.0016) 0.10 (0.0016) 0.10 (0.0031)
(0.0039) (0.0039) (0.0039)
～0.08 ～0.08
(0.0031) (0.0031)
0.02 0.02 0.08
(0.0008) (0.0008) (0.0031)
0.10 0.10 0.10
(0.0039) (0.0039) (0.0039)
～0.06 ～0.06
(0.0024) (0.0024)
0.005T 0.005T 0.005T
(0.00020T) (0.00020T) (0.00020T)
0.06L 0.06L 0.06L
(0.00024L) (0.00024L)
～0.011L ～0.011L
(0.00043L) (0.00043L) (0.00043L)
0.10 0.10 0.10
0.50 (0.0039) 0.50 (0.0039) 0.50 (0.0039)
(0.0197) (0.0197) (0.0197)
～0.30 ～0.30
(0.0118) (0.0118)
1.4 1.0 0.9 1.2 1.1
(0.0551) (0.0394) (0.0354) (0.0472) (0.0433)
φ7.98 φ8.00 φ7.98 φ9.00 φ8.98
(0.3142) (0.3150) (0.3142) (0.3543) (0.3535)
φ11.03 φ11.00 φ11.03 φ12.00 φ12.03
(0.4343) (0.4331) (0.4343) (0.4724) (0.4736)
- 0.15/ 100 - 0.15/ 100
φ11.97 φ12.00 φ11.97 φ12.00 φ11.97
(0.4713) (0.4724) (0.4713) (0.4724) (0.4713)
φ11.90 φ12.00 φ11.90 φ12.00 φ11.90
(0.4685) (0.4724) (0.4685) (0.4724) (0.4685)
φ11.97 φ12.00 φ11.97 φ12.00 φ11.97
(0.4713) (0.4724) (0.4713) (0.4724) (0.4713)
φ11.90 φ12.00 φ11.90 φ12.00 φ11.90
(0.4685) (0.4724) (0.4685) (0.4724) (0.4685)
0.07 0.07 0.07
- -
(0.0028) (0.0028) (0.0028)
21.9 23.9
(0.8622) (0.9409)
22.0 24.0
(0.8661) (0.9449)
～22.1 ～22.1 ～24.1
(0.8701) (0.8701) (0.9488)
0.5 0.5 0.5
- -
(0.0197) (0.0197) (0.0197)
Flutter, Flutter, Flutter,
irregular irregular irregular
- -
noise noise noise
generated generated
Specifications
Backpack Blower
GZ48N GZ51N
EBZ5100/ 5100RH/
5100Q
EBZ4800
EBZ5150/ 5150RH/
5150Q
Standard Limit Standard Limit Standard
φ40.00 φ40.06 φ43.00 φ43.06 φ44.00
(1.5748) (1.5772) (1.6929) (1.6953) (1.7323)
φ42.955 φ43.965
(1.5732) (1.6911) (1.7309)
φ39.87 φ42.87
(1.5697) (1.6878)
～φ42.970 ～φ43.985
(1.5738) (1.6917) (1.7317)
1.57 1.60 1.25 1.30 1.25
(0.0618) (0.0630) (0.0492) (0.0512) (0.0492)
1.57 1.60 1.22 1.30 1.22
(0.0618) (0.0630) (0.0480) (0.0512) (0.0480)
φ10.995 φ11.04 φ10.995 φ11.04 φ10.995
(0.4329) (0.4346) (0.4329) (0.4346) (0.4329)
0.030 0.015
(0.0012) (0.0006)
0.19 0.19
(0.0074) (0.0075)
～0.065 ～0.070 ～0.060
(0.0026) (0.0028) (0.0024)
0.06 0.06
0.15 (0.0024) 0.15 (0.0024)
(0.0059) (0.0059)
～0.12 ～0.10 ～0.10
(0.0047) (0.0039) (0.0039)
0.03 0.03
(0.0012) (0.0012)
0.15 0.15
(0.0059) (0.0059)
～0.12 ～0.07 ～0.07
(0.0047) (0.0028) (0.0028)
0.005L 0.005L
(0.00020T) (0.00020T)
0.06L 0.06L
(0.00024L) (0.00024L)
～0.011L ～0.021L ～0.021L
(0.00083L) (0.00083L)
0.10 0.10
0.50 (0.0039) 0.50 (0.0039)
(0.0197) (0.0197)
～0.30 ～0.30 ～0.30
(0.0118) (0.0118) (0.0118)
1.5 1.4 1.2 1.1 1.2
(0.0591) (0.0551) (0.0472) (0.0433) (0.0472)
φ11.00 φ10.98 φ11.00 φ10.98 φ11.00
(0.4331) (0.4323) (0.4331) (0.4323) (0.4331)
φ15.00 φ15.03 φ15.00 φ15.03 φ15.00
(0.5906) (0.5917) (0.5906) (0.5917) (0.5906)
- 0.15/ 100 - 0.15/ 100 -
φ15.00 φ14.95 φ15.00 φ14.95 φ15.00
(0.5906) (0.5886) (0.5906) (0.5886) (0.5906)
φ15.00 φ14.90 φ15.00 φ14.90 φ15.00
(0.5906) (0.5866) (0.5906) (0.5866) (0.5906)
φ15.00 φ14.95 φ15.00 φ14.95 φ15.00
(0.5906) (0.5886) (0.5906) (0.5886) (0.5906)
φ15.00 φ14.90 φ15.00 φ14.90 φ15.00
(0.5906) (0.5866) (0.5906) (0.5866) (0.5906)
0.07 0.07
- - -
(0.0028) (0.0028)
28.9 28.9
(1.1378) (1.1378)
29.0 29.0 29.0
(1.1417) (1.1417) (1.1417)
～29.1 ～29.1
(1.1457) (1.1457)
0.5 0.5
- - -
(0.0197) (0.0197)
Flutter, Flutter,
irregular irregular
- - -
noise noise
generated generated
G62L GZ65N
EB6200
EBZ7100/ 7100RH
EB7000
EBZ7150/ 7150RH
EB7001
Limit Standard Limit Standard Limit
φ44.06 φ47.50 φ47.56 φ47.53 φ47.59
(1.7346) (1.8701) (1.8724) (1.8713) (1.8736)
φ47.455 φ47.458
(1.8683) (1.8684)
φ43.88 φ47.37 φ47.37
(1.7276) (1.8650) (1.8650)
～φ47.470 ～φ47.478
(1.8689) (1.8692)
1.30 1.55 1.60 1.25 1.30
(0.0512) (0.0610) (0.0630) (0.0492) (0.0512)
1.30 1.53 1.60 1.23 1.30
(0.0512) (0.0602) (0.0630) (0.0484) (0.0512)
φ11.04 φ10.995 φ11.04 φ11.995 φ12.05
(0.4346) (0.4329) (0.4346) (0.4722) (0.4744)
0.030 0.052
(0.0012) (0.0020)
0.18 0.19 0.22
(0.0071) (0.0075) (0.0087)
～0.065 ～0.092
(0.0026) (0.0036)
0.06 0.06
0.15 (0.0024) 0.15 (0.0024) 0.15
(0.0059) (0.0059) (0.0059)
～0.10 ～0.10
(0.0039) (0.0039)
0.04 0.04
(0.0016) (0.0016)
0.15 0.15 0.15
(0.0059) (0.0059) (0.0059)
～0.08 ～0.08
(0.0031) (0.0031)
0.005L 0.005L
(0.00020T) (0.00020T)
0.06L 0.06L 0.07L
(0.00024L) (0.00024L) (0.0028L)
～0.021L ～0.021L
(0.00083L) (0.00083L)
0.15 0.15
0.50 (0.0059) 0.6 (0.0059) 0.6
(0.0197) (0.0236) (0.0236)
～0.35 ～0.35
(0.0138) (0.0138)
1.1 1.5 1.4 1.2 1.1
(0.0433) (0.0591) (0.0551) (0.0472) (0.0433)
φ10.98 φ11.00 φ10.98 φ12.00 φ11.98
(0.4323) (0.4331) (0.4323) (0.4724) (0.4717)
φ15.03 φ15.00 φ15.03 φ16.00 φ16.03
(0.5917) (0.5906) (0.5917) (0.6299) (0.6311)
0.15/ 100 - 0.15/ 100 - 0.15/ 100
φ14.95 φ15.00 φ14.95 φ16.00 φ15.95
(0.5886) (0.5906) (0.5886) (0.6299) (0.6280)
φ14.90 φ15.00 φ14.90 φ16.00 φ15.90
(0.5866) (0.5906) (0.5866) (0.6299) (0.6260)
φ14.95 φ15.00 φ14.95 φ16.00 φ15.95
(0.5886) (0.5906) (0.5886) (0.6299) (0.6280)
φ14.90 φ15.00 φ14.90 φ16.00 φ15.90
(0.5866) (0.5906) (0.5866) (0.6299) (0.6260)
0.07 0.07 0.07
- -
(0.0028) (0.0028) (0.0028)
28.9 28.9 28.9
(1.1378) (1.1378) (1.1378)
29.0 29.0
(1.1417) (1.1417)
～29.1 ～29.1 ～29.1
(1.1457) (1.1457) (1.1457)
0.5 0.5 0.5
- -
(0.0197) (0.0197) (0.0197)
Flutter, Flutter, Flutter,
irregular irregular irregular
- -
noise noise noise
generated generated generated
GZ72N
Measuring Service
Instrument Procedure
EBZ8001/ 8001RH
EBZ8050/ 8050RH
Standard Limit
Replacement
φ50.03 φ50.09
Cylinder Gauge (Plating Damaged
(1.9697) (1.9720)
Replacement)
φ49.958
(1.9669)
φ49.87
Micrometer Replacement
(1.9634)
～φ49.978
(1.9676)
1.25 1.30
(0.0492) (0.0512)
Thickness Gauge Replacement
1.23 1.30
(0.0484) (0.0512)
φ11.995 φ12.05
Cylinder Gauge Replacement
(0.4722) (0.4744)
0.052
(0.0020)
0.22 Micrometer, Piston
(0.0087) Cylinder Gauge Replacement
～0.092
(0.0036)
0.06
(0.0024) 0.15
(0.0059)
～0.10
(0.0039)
Thickness Gauge Replacement
0.04
(0.0016)
0.15
(0.0059)
～0.08
(0.0031)
0.005L
(0.00020T)
0.07L Micrometer,
Replacement
(0.0028L) Cylinder Gauge
～0.021L
(0.00083L)
0.15
(0.0059) 0.6
Thickness Gauge Replacement
(0.0236)
～0.35
(0.0138)
1.2 1.1
Micrometer Replacement
(0.0472) (0.0433)
φ12.00 φ11.98
Micrometer Replacement
(0.4724) (0.4717)
φ16.00 φ16.03
Cylinder Gauge Replacement
(0.6299) (0.6311)
Mandrel Dial
- 0.15/ 100 Replacement
Gauge
φ16.00 φ15.95
Micrometer Replacement
(0.6299) (0.6280)
φ16.00 φ15.90
Micrometer Replacement
(0.6299) (0.6260)
φ16.00 φ15.95
Micrometer Replacement
(0.6299) (0.6280)
φ16.00 φ15.90
Micrometer Replacement
(0.6299) (0.6260)
0.07 Dial Gauge, Repair or
-
(0.0028) Center Support Replacement
28.9
(1.1378)
29.0 Repair or
Micrometer
(1.1417) Replacement
～29.1
(1.1457)
0.5
- Thickness Gauge Repair (Shim)
(0.0197)
Flutter,
irregular
- - Replacement
noise
generated
51