Yanmar 3TNV82A-B Service Manual page 305

Oil Pump Service Information
Item
Gear Boss Diameter
Inside Clearance of
Inner Rotor
Rotor Diameter
Width Across Flat of
Inner Rotor Width
Gear Boss
Across Flat
Width Across Flat of
Clearance
Rotor
<Trochoid type 3TNV82A-B - 4TNV88-B, 4TNV94L - 4TNV106T>
Model
3TNV82A-B
3TNV88-B, 3TNV88-U
4TNV88-B, 4TNV88-U
3TNV84T-Z, 4TNV84T-
Z
4TNV94L, 4TNV98,
4TNV98T
4TNV98-Z, 4TNV98-E
4TNV98T-Z
4TNV106, 4TNV106T
TNV DI Service Manual
Inner Rotor and Gear Boss Clearance
<Multiple tooth trochoid type 3TNV82A - 4TNV88>
Parts
2.0886 - 2.0925 in.
(53.05 - 53.15 mm)
2.1043 - 2.1083 in.
(53.45 - 53.55 mm)
1.9468 - 1.9587 in.
(49.45 - 49.75mm)
1.9665 - 1.9705 in.
(49.95 - 50.05 mm)
Rotor Shaft Clearance
Inspection Item
ÉvÉåÅ[ÉgéðéÛì‡åa
Rotor Shaft O.D.
Rotor Clearance
ÉMÉÑÉPÅ[ÉXéðéÛì‡åa
Rotor Shaft O.D.
Rotor Clearance
ÉMÉÑÉPÅ[ÉXéðéÛì‡åa
Rotor Shaft O.D.
Rotor Clearance
Standard Standard
Dimension Clearance
0.012 - 0.020 in.
(0.3 - 0.5 mm)
0.008 - 0.020 in.
(0.2 - 0.5 mm)
Standard
0.3937 - 0.3943 in.
(10.000 - 10.015 mm)
0.3919 - 0.3924 in.
(9.955 - 9.967 mm)
0.0013 - 0.0024 in.
(0.033 - 0.060 mm)
0.5110 - 0.5126 in.
(12.980 - 13.020 mm)
0.5100 - 0.5104 in.
(12.955 - 12.965 mm)
0.0006 - 0.0026 in.
(0.015 - 0.065 mm)
0.5118 - 0.5126 in.
(13.000 - 13.020 mm)
0.5100 - 0.5104 in.
(12.955 - 12.965 mm)
0.0014 - 0.0026 in.
(0.035 - 0.065 mm)
LUBRICATION SYSTEM
Standard
Reference
Clearance
Limit
0.024 in.
Check Inner
(0.6 mm)
Rotor and
Gear Boss
Clearance on
0.028 in.
page 9-12
(0.7 mm)
Reference
Limit
0.3953 in.
(10.040 mm)
Check Rotor
0.3913 in.
(9.940 mm) Clearance on
page 9-15
0.0039 in.
(0.100 mm)
0.5138 in.
(13.050 mm)
0.5096 in.
(12.945 mm)
0.0041 in.
Check Rotor
(0.105 mm)
Clearance on
0.5138 in.
page 9-19
(13.050 mm)
0.5096 in.
(12.945 mm)
0.0041 in.
(0.105 mm)
Page
Page
Shaft
Shaft
9-7