9.
Ease the pump from its dowels and withdraw it
from the crankcase.
1.
Scavenge pump
Inspection
If any part of either of the oil pumps is found to
be
outside the service limit, the complete pump must
be
replaced. Severe engine damage may result
from the continued use of a faulty oil pump.
Clearances
Item (both
Standard Service
limit
pumps)
Oil pump rotor 0.15
mm
0.30
mm
tip clearance
Oil pump body 0.15
-
0.22 0.35
mm
clearance
mm
Oil pump rotor 0.02
- 0.07 0.10
mm
end float
mm
Lubrication
1.
Measure the rotor tip clearance using feeler
gauges.
1.
Rotor tip clearance
2. Measure the pump body clearance using feeler
gauges.
1.
Pump
body clearance
3.
Measure the pump end clearance.
4.
Clearances:
a)
If
all
clearances are within service limits,
liberally apply clean engine oil to all internal
components and refit the
oil
pump plate to the
oil pump
body.
b)
If any clearance measured
is
outside the
service limits, renew the complete
pump.
5.
Inspect all the sprocket and chain for wear and/or
damage. Replace the sprocket and chain if wear
and/or damage is found.
Service Manual - Rocket
III
9.13