J/Boats J/145, Owner'S Manual

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J/145 OWNER GUIDE 39
Engine System
The engine and fuel system is engineered to be conveniently accessible for repairs and general
maintenance. Located aft of the companionway ladder. There is access to the front, sides and the back
of the engine from which all important functions can be reached; including water strainer, fuel injectors,
fuel filter, fuel primer, expansion chamber, and alternator.
Before starting the engine read the engine manufacturer’s owner’s manual for proper break-in and
operating procedures. Once the engine is running, inspect it for any discrepancies, like oil leaking,
excessive water leaks, or anything out of the ordinary.
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Engine Control Panel: is mounted on the aft vertical face of the helmsman’s cockpit. It contains the
starter, kill switch, warning lights, and gauges. The combination throttle/gearshift is mounted on the
port side. Double-check all mechanical connections between engine and on-deck equipment.
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Engine Bed: is constructed of heavily reinforced fiberglass. This provides a superior mount over
wood and is also rot-proof. The engine sits on Yanmar “soft” rubber shock mounts to help isolate the
engine vibration from the boat. Check to see that the engine is sitting correctly on them and the bolts
tightly secured.
Sail Drive
The J/145 is equipped with the Yanmar Saildrive SD-31. This system provides a clean quiet alternative to
conventional yacht drive trains. We recommend that you follow all Yanmar guidelines included with the
boat for maintenance and service of this system.
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Transmission: is attached to the aft end of the engine and houses the reduction and reverse gears.
These gears generally need little maintenance, but the oil level should be checked periodically.
Fuel System
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Fuel Tank & Hoses: The J/145 is equipped with one 75 gallon fuel tank. The tank is located under
the starboard settee berth in the main cabin. Fuel lines run from the primary tank to the fuel primer
pump. From there fuel flows into the injectors. The tank is aluminum and baffled to prevent fuel
slosh. For a layout, please see the Fuel System diagram.
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Fuel Gauge: is located under the wheel hub at the pedestal. The gauge reflects level (height) of fuel
in the primary tank, not the quantity . Try to maintain a minimum level of 1/3 to 1/2 tank filled at all
times.
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Fuel Line Shut-Off Valve: also sits atop the tank. Since diesel engines require bleeding after they
have been deprived of fuel, it’s important that the shut-off valve be in the “ON” position (lever parallel
to piping) anytime the engine is started.
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Fuel Tank Access Plate: is atop each fuel tank and provides access inside to clean the tank or
check the fuel gauge.
Engine Cooling System
The engine utilizes a closed system in which a mixture of water and anti-freeze is circulated within the
engine for cooling. This liquid is cooled by a heat exchanger using sea-water, in a similar fashion to the
radiator on a car which uses air to cool the contained liquid.