Yanmar EF-494T - Lubricating Oil Pump (Trochoid Pump)

3 ENGINE 3 ENGINE
EF494T TM 06/2011 edition
116
3.5.17 Lubricating oil pump (trochoid pump)
Outer rotor outside clearance
No.
Standard
Limit
1
0.12 to 0.21
0.30
Outer rotor side clearance
No.
Standard
Limit
1
0.02 to 0.07
0.12
Inner rotor-to-gear boss clearance
No.
Inspection item
Standard
dimension
Standard
Limit
1
Inside clearance of
inner rotor (mm)
Gear box
diameter
53.05 to 53.15
0.3 to 0.5
0.6
Rotor I.D.
53.45 to 53.55
2
Clearance in width
across flats of inner
rotor (mm)
Width across
flats of gear
boss
49.45 to 49.75
0.2 to 0.6
0.7
Width across
flats of rotor
49.95 to 50.05