Selva Sea Bass 4, Руководство пользователя

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24
GREASING AND ADDITIONS
The only part, which must be filled with oil, is the gearbox.
Selva supply the motor already with the oil, which the user will have to
change completely after the first 20 cruising hours
After this change you must check its level every 50 hours and change it
every 100 hours, and anyway once every season.
Gearbox-oil change
To change the oil proceed as follows:
- Keep the motor in vertical position.
- Place a container to collect the used oil under the gearbox.
- Take out the oil-level plug and the oil drain-plug.
They have a different size and after the oil change they must
be replaced in their proper seat.
- Wait until the oil has drained completely, (during this operation you
must check, if water or other foreign bodies are to be found in the
drained oil. These are signs of anomalies which must be identified and
repaired by qualified staff, before using the motor again).
- Protecting the leaning parts, put the motor horizontally, with the oil-
level plug and the oil drain-plug holes upwards.
- Inject the oil into the oil drain-plug hole.
The oil must agree with the characteristics listed in the
greasing chart, and must comply with the quantity
pointed out in the technical detailed list.
Insert and tighten the oil-level plug and the oil drain plug.
Fig. 60.
Spark-plug
The spark-plug must be often inspected because heat and
deposits affect its efficiency so that the performance of the
motor will be affected too.
The inspection of the spark-plug must be done
when the engine is not running and it has cooled
down.
It is very important to check, that the part made of
porcelain is not damaged because this could allow
external sparks, which could lead to explosion or fire.
To remove the spark-plug use the supplied spanner; using an
abrasive brush, remove any deposits, then check the wear
condition and the spark-plug gap ( the gap must be 0,6 mm, to
measure it use a thickness gauge ) .
If the spark-plug is too badly worn you must replace it with a
new one which must agree with the characteristics listed in the
specifications chart.
The spark-plug torque is 20 Nm ( ~ 2. kgm). If a
torque-wrench is not available, you can obtain a
good estimate of the correct torque turning the spark plug
completely by hand and then turning it with the
spanner, a new spark-plug must be turned ~ 90° and
the old one 15° ÷ 20°.
Replace the spark-plug cap, checking that it is correctly fitted
and then replace the top cowling.
Fig. 61.