Cal Boats CAL 27 Mk III, Руководство пользователя

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16 ENGINE OPERATING INSTRUCTIONS
hold the propeller half coupling to the shaft . These must be tight, in contact with the shaft,
and safety wired .
Stuffing Box
The stuffing box provides a seal for the propeller shaft at the inner end of the shaft log . It is
connected to the shaft log with heavy wall hose, double clamped at each end . This flex hose
allows the stuffing box to maintain alignment with the prop shaft without creating excessive
wear of the packing, due to misalignment or vibration . The packing used is wax impregnated
3/16” x 3/16” square flax .
When the shaft is turning, it is normal to have a slight leakage at the seal, about one drop
per 30 seconds . This acts as a coolant, as well as a lubricant, to protect the seal and shaft
surface . Should excessive leakage be apparent, release the lock nut and tighten the packing
nut slightly and re-tighten the lock nut .
Re-start engine and check again with shaft turning . When it becomes necessary to replace
the packing (boat should be hauled), loosen the lock nut, back off the packing gland nut, and
slide it forward on the shaft . Remove all the old packing and replace it with three rings of new
packing .
Stagger the ends of each ring so as not to provide a path for water to leak through . D o
not wind one continuous strip spirally around prop shaft to make a seal . Slide the packing
gland back and tighten enough to create a heavy drag on the shaft . This will seat and form the
packing . Back off the packing nut until the shaft feels free and re-set the lock nut . Re-check
for proper leakage when boat is returned to the water . Be sure the lock nut is secure, as oper-
ating the boat in reverse could cause the packing gland to screw off the stuffing box, allowing
water into the boat .
FLOODING OF ENGINE WITH WATER
Your Cal Yacht is supplied with a water-lift (wave suppressor) type of muffler that under
normal conditions, when the engine is not running, provides wave suppression and water
storage to help keep water from flooding the engine .
NOTE: THERE IS A DIRECT PATH FROM THE OVERBOARD EXHAUST PORT VIA THE
WATER-LIFT MUFFLER TO THE ENGINE AND FROM THE WATER PUMP TO THE MUFFLER .
ACCIDENTAL CONDITIONS (SEA) AND OPERATOR ERROR (PROLONGED STARTING
ATTEMPTS) CAN THUS CAUSE AN EXCESSIVE VOLUME OF WATER TO FILL THE MUFFLER
AND FLOOD THE ENGINE .
UNDER SUCH ACCIDENTAL SEA AND/OR MISUSE CONDITIONS, ENGINE FLOODING MAY
BE UNAVOIDABLE .