Cleaning And Inspection - Yanmar 3TNV82A-B Service Manual

LUBRICATION SYSTEM
(2)
Figure 9-24

Cleaning and Inspection

Wash the oil pump, oil pressure regulator and oil
pump cavity. Inspect for wear or damage. Replace
as necessary.
A
CAUTION
If any oil pump component clearance
exceeds its limit, the oil pump must be
replaced as an assembly.
Check Outer Rotor Outside Clearance
Determine the outside clearance of the outer rotor.
Insert a feeler gauge between the outer rotor
(Figure 9-25, (1)) and gear case oil pump cavity
(Figure 9-25, (2)).
(2)
Figure 9-25
Record the measurement(s) and see Check Outer
Rotor Outside Clearance on page 9-11 for the
service limits.
9-18
(1)
0000049D
0000015en
(1)
0000045A
Outer Rotor to Inner Rotor Tip Clearance
Determine the outer rotor to inner rotor tip
clearance. Insert a feeler gauge between the top of
an inner rotor tooth (Figure 9-26, (1)) and the top
of an outer rotor tooth (Figure 9-26, (2)) and
measure the clearance.
(2)
Figure 9-26
Record the measurement(s) and see Outer Rotor
to Inner Rotor Tip Clearance on page 9-11 for the
service limits.
Check Outer Rotor Side Clearance
Determine the side clearance of the outer rotor
across the pump cavity. Measure the depression
using a depth micrometer (Figure 9-27, (1)).
Figure 9-27
Record the measurement(s) and see Check Outer
Rotor Side Clearance on page 9-12 for the service
limits.
TNV DI Service Manual
Trochoid Oil Pump
(1)
0001153A
(1)
0001615A