FEED PUMP
SEA WATER PUMP
Replacing the impeller
58.
Remove the cover. Watch out for water pour-
ing through the pump. With the aid to two
screwdrivers prise the shaft with the impeller out
of the housing sufficiently for the screw which
holds the impeller to be undone. NOTE! Lay
some kind of protection under the screwdrivers
so that the housing is not damaged.
55.
Undo the central screw in the cover, lift out the
strainer and clean it. Take out the six screws
holding the upper and lower parts of the pump
together. Take out the lever spring (1), also re-
move the screw (2).
56.
Remove the lever shaft using a pair of
fine-nosed pliers. Pull out the lever and the dia-
phragm. Fit new parts from the repair kit and re-
assemble the pump.
59.
Take the screw out and pull the impeller off the
shaft. Clean the housing internally and check
that the carrier (MD17) is free from defects and
fit the new impeller. Fit the cover together with a
new gasket.
THERMOSTAT
57.
The thermostat is accessible after the thermo-
stat housing on the front on the exhaust mani-
fold has been taken off. Watch out for water
pouring into the boat. Check the opening and
closing temperatures with hot water. These
should be as given in “Technical Data”. If the
thermostat is faulty it should be discarded. Use
new sealing rings when refitting (MD17 has only
one sealing ring). The picture shows the earlier
type (bellows thermostat). Later engines are fit-
ted with a wax thermostat.
60.
MD11: Engine no. 46159-46175 and from and
including engine no. 46214. Remove the cov-
er. The impeller can be pulled out as shown in
the picture or by using suitable pliers. NOTE!
Protect the edge of the pump housing. The shaft
follows with the impeller but is stopped by a pin
behind the seals.
21
| Categories | Volvo Penta Manuals |
|---|---|
| Tags | Volvo Penta MD11C, Volvo Penta MD11D, Volvo Penta MD17C, Volvo Penta MD17D |
| Download File |
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| Document File Type | |
| Copyright | Attribution Non-commercial |
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