Fitting The Hose; Installation Examples; Exhaust Pipe - Vetus NLPG40 Instrucciones De Instalación

The top portion should be turned as follows:
1 Unscrew the clamping strip
2 Turn the top portion to the desired position
3 Tighten the clamping strip sufficiently, to a
torque of 0.3 Nm (0.22 ft-lb, 42 oz-in)
The top portion of the goose neck can be turned in a 360˚ radius.
If possible, the goose neck should be fitted immediately above the
exhaust silencer, see drawings 1 and 3. This will reduce the amount
of water running back between the highest point and the silencer.
When the goose neck is fitted directly on the transom connection,
then the exhaust pipe maximum length between the silencer and
the highest point must be taken into account, see drawings 2 and 4.
Fit the goose neck with the ty-raps® supplied. The goose neck has
slots in which the ty-raps® should be fitted.
2.3

Exhaust Pipe

In order to ensure the proper drainage of the coolant water injected
into the exhaust pipe, the pipe must be installed with a slope down-
ward over its whole length from the water injection point to the
exhaust silencer.
During operation, the exhaust pipe will contain water. This will
increase its weight considerably, so support the exhaust pipe prop-
erly.
The exhaust pipe from silencer to transom connection must be
installed in such a way that:
Goose neck NLPG
- The highest point in the exhaust pipe should not be more than
150 cm (5 ft) above the underside of the exhaust silencer.
- The length of the section between the exhaust silencer and the
highest point, should not exceed 300 cm (10 ft).
2.4

Fitting the hose

To ease the fitting of the hose to the hose connector, use only water
and/or soap, NOT grease or products containing oil.
Fit each hose connection with 2 stainless steel 12 mm (
hose clamps.
3

Installation Examples

Exhaust systems with an exhaust silencer type NLPH, goose neck
type NLPG and a transom connection are shown on page 15.
Entry of water from the aft is almost completely prevented by the
extra height difference in the goose neck.
When the engine is stopped, any water which is still in the exhaust
pipe (between the highest point in the exhaust system and the
exhaust silencer) will run back to the exhaust silencer.
3.1 Prevention of syphoning (drawings 3 & 4)
If the water injection point 'C' is below, or less than 15 cm (0.6")
above the waterline (also when the ship heels under sail), there is
a risk that when the engine is stopped, the coolant water will enter
the engine due to syphoning. This syphoning can be prevented in
two ways:
 By creating an air vent system in the coolant water hose between
engine block and water injection point 'C' , by fitting an air vent
with air vent pipe, for example.
The air vent pipe can be connected to its own hull outlet (H) or to
the connection on the gooseneck intended for this (G).
Note: when delivered, the connection (G) on the gooseneck is
not open!
If the air vent pipe is to be connected to (G) this must first be
drilled through. Use a drill with diameter 4mm.

By fitting an air vent (with valve) in the coolant water hose
between the engine block and water injection point 'C' .
4 Maintenance
• Check all hose connections for gas and water leaks regularly.
• Before the winter lay-up, drain the exhaust silencer. The exhaust
silencer has a drain plug for this purpose.
ENGLISH
1 / ") wide
2
5
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