TP-6591 10/1336 Section 3 Scheduled Maintenance
1-511
Figure 3-19 Spark Plug Gap Adjustment
8. Reinstall the spark plug. Do not bump the
electrode against the cylinder head. Rotate the
spark plug clockwise until feeling resistance.
9. Use a torque wrench to torque each spark plug to
24.4--29.8 Nm (18--22 ft. lbs.). Otherwise,
hand-tighten spark plug until feeling resistance.
10. Use a ratchet wrench to final tighten an additional
1/4 turn. Do not overtighten, as doing so may strip
threads or alter electrode gap setting.
11. Check spark plug wire connector in boot for
accumulated dirt, grease, and other debris, and
clean as necessary.
12. Firmly push spark plug boot onto spark plug.
3.9 Battery
Consult the battery manufacturer’s instructions
regarding battery care and maintenance.
3.10 Generator Storage Procedure
Keep the craft afloat for generator operation during the
storage procedure. Follow the procedure below when
storing your generator set for a long period (3 months or
more).
1. Start and run the generator set until it reaches
operating temperature or about 15 minutes.
2. Stop the generator set.
3. Change the oil and oil filter; see Section 3.3.4—Oil
Change and Section 3.3.5—Oil Filter Change.
4. Close the seacock and remove the hose at the
seacock. Place the hose in a container having
approximately 3.7-7.5 L (1-2 U.S. gallons) of
coolant/antifreeze. Kohler Co. recommends using
an environmentally friendly potable antifreeze
such as PeakR RV/marine propylene glycol/water
mix or equivalent.
5. Disconnect the lead (#87) to the low seawater
pressure (LWP) switch.
6. With a suitable container at the e xhaust outlet, run
the generator set until coolant discharges at the
exhaust outlet o r until depleting the coolant
mixture. Do not allow coolant mixture to flow into
waterways.
7. Reconnect the lead (#87) to the low seawater
pressure (LWP) switch.
8. Stop the generator set.
9. Connect the hose to the seacock. Leave the
seacock closed.
10. Run fuel out of pumps.
11. Check the coolant level of the heat exchanger and
add coolant if necessary.
Note: Use antifreeze capable of withstanding the
lowest possible temperatures.
12. Drain fuel completely from the fuel tank.
13. Clean the exterior of the generator set and spread a
light film of oil or silicon spray over any exposed
surfaces that may be subject to rust o r corrosion.
14. Keep spark plugs in their holes or seal spark plug
holes with suitable threaded metal plugs.
15. Seal the air inlet, exhaust pipe, and fuel tank cap
with tape.
16. Disconnect and remove the battery. Place the
battery in a warm, dry location for the storage
period. Recharge the battery once a month to
maintain a full charge.
17. Select a well-ventilated (not humid or dusty)
location to store the generator.
18. Cover the entire unit with a dust cover.
Note: Run the generator set once a month
whenever possible.
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