Section 06
LUBRICATION SYSTEM
Sub-Section 03
(OIL INJECTION PUMP)
06-03-6
If not, run engine at idle speed while manually
holding pump lever in fully open position. Do not
activate throttle lever.
CHECKING OPERATION
On Watercraft
NOTE:
Oil line supply must be full of oil. See
bleeding procedure above.
Start engine and run at idle while holding the
pump lever in fully open position. Oil must ad-
vance into small oil lines.
NOTE:
The engine should have a rich mixture,
idling irregularly and emitting smoke at exhaust
outlet.
If not, remove pump assembly and check the
pump gear (717 engines) or shaft (787 engine) for
defects, replace as necessary. Test pump as de-
scribes below:
NOTE:
Through normal use, oil level must not
drop in small tubes. If oil drops, verify check valve
operation. Replace as necessary.
Bench Test
The oil pump must be removed out of watercraft.
Connect a hose filled with injection oil to main line
fitting. Insert other hose end in an injection oil
container. Using a counterclockwise (reverse po-
sition) rotating drill rotate pump shaft. Oil must
drip from fittings in parts of rotary valve cover
while holding lever in a fully open position.
TYPICAL
1. Supply oil line to an oil container
2. Hold lever in fully open position
3. Counterclockwise (reverse) rotating drill
4. Oil must drip here
For an accurate test, each port should be checked
separately to ensure equal delivery on both ports.
To obtain a precise result of the oil pump delivery
rate, rotate it counterclockwise at 1500 RPM for a
total time of 30 seconds.
NOTE:
To ensure accuracy of test, oil lines should
be completely filled before starting test.
Compare the results with the chart below. If oil
pump is out of specification, replace it.
NOTE:
Test can also be done at 3000 RPM. Dou-
ble quantities in chart.
-
CAUTION
If watercraft is out of water, engine must be
cooled using the flush kit.
Engine
717/717D
787
Oil Pump
Flow Rate at
1500 RPM
(30 seconds)
1.24 – 1.51 mL
(each port)
0.71 – 0.87ml
(each port)
F01G02A
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2
3
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