Fig. 31 …and ready to be lowered
Inboard engine, and servicing
The DEHLER 35 CWS can be fitted with one of
two options, a YANMAR 2 GM 20 or YANMAR
3 GM 30F engine.
Detailed operating and servicing instructions
are provided in the manufacturer’s manual. The
service intervals specified are only a rough
guide.
Supplementary housing in the engine
compartment substantially reduces engine-
running noise. To reach the oil dipstick, the
hatch in the toilet/washroom compartment and
the inspection cover must be removed. To
carry out any other checks, remove the second
companionway step, and then withdraw the
bottom step with its bulkhead, upwards out of
its guide rails. The soundproof engine housing
can then be removed by drawing it forwards.
The 40mm hole above the bottom step is a
requirement under German Lloyds
regulations. In the event of an engine fire, the
flames in the engine compartment should be
extinguished through this opening. The nozzle
of the fire extinguisher should be pushed
through the insulating material and the
extinguishing agent released.
Many yachtsmen only complete the specified
number of engine hours after two sailing
seasons, but it is short duty cycles that cause
particularly heavy wear.
Shorter service intervals should therefore be
adopted. For this reason, servicing work should
be carried out at least once a year.
Engine winterizing
Before laying up for the winter, we recommend
the following minimum precautions in addition
to those stipulated in the manual:
1. Change the oil
2. Add a protective oil (e.g. Desolit TK)
3. Run engine for approx. 15 mins, until the
additive is well dispersed and reaches
the injector pump and injectors.
4. Prepare approx. 3 litres of antifreeze at
a concentration ratio of 1:1, and let this
be drawn through the seawater intake
hose of the engine.
5. Top up the diesel tank to prevent
condensation from forming.
6. Remove the air filter and spray engine
oil directly into the combustion chamber
through the air intake manifold. To do
this, open the decompression levers and
turn the engine over, with the stop-lever
pulled out.
Engine control – starting the engine.
Fitted to the steering pedestal is a single-
lever engine control of proven design. To
engage idling mode before starting, the red
lockout button should be depressed, with
the lever in the ‘neutral’ position. Then,
while the red button is depressed, move the
lever to either ‘ahead’ or ‘astern’ position.
ATTENTION !
Never change from full-ahead to full-
astern.
30
https://www.boat-manuals.com/
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