sedimenter is designed to trap the larger, solid
particles and water droplets which might be present
in the fuel. The accumulated water and sediment can
be seen through the transparent bowl and may be
drained off periodically by either removing the bowl
from the sedimenter top or by unscrewing the drain
plug in the base, providing such plug is fitted (two
alternative sedimenters have been fitted in the
FJORD MS 33). Do not forget to bleed the fuel
system after having drained the sedimenterl
b) Water cooling system
The engine is fitted with an indirect cooling system.
This system incorporates a heat exchanger, fresh
water as heat transporting medium in a closed
circuit and raw water as the cooling medium. The
raw water intake with through-hull fitting and sea-
cock (gatevalve) is located in the engine room, just
to starboard of the gear box (plate 23).
Serious clogging of the cooling water intakes will
lead to overheating of the engine. If this happens,
temperature rise is shown by the instruments. On
version B the buzzer will give an accoustic warning
as well.
Without doubt, shells, barnacles. seaweed etc. in and
outside the cooling water intake my lead to restric-
ted water flow to the piping. We therefore recom-
mend that the water intake be thoroughly checked
and cleaned whenever the boat is hauled ashore
for periodical servicing.
We also strongly recommend that hoses and hose-
connections (with hose clamps) of the cooling
water system be thoroughly inspected during the
service to be carried out for every 150 hours (or
3 months) of engine operation. Inspection of the
same items should take place during the postde-
livery checkover (after 25/50 hours in service)
as well. Brittle hoses must instantly be replaced.
The raw water is discharged through the water
jacket fitted to the exhaust piping (asbestos insu-
lated, uncooled exhaust piping on boats built before
1973) to a water injection pipe injecting the water
directly into the exhaust flow down the exhaust-
bend in the stern. This arrangement has a remark-
able effect in reducing exhaust outlet noise level.
c) Bilge water system
A brief description of the bilge water system is
given in paragraph 3.8 (plates 11 and 12).
We recommend that all hose clamps, hoses and
connections as well as the pump(s) and the switch
of the automatic draining device fitted in Version B
be thoroughly inspected during the service to be
Plate 29
Dismantling the Manual Bilge Pump
Rubber Diaphragm is loosened by unscrewing the
Hawse-Clamp Screw A
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