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Indmar Marine Engines
Raw Water Pump – Replace the impeller if it is worn or
over one year old. Since you must remove the impeller
to inspect it, it is good practice to replace the impeller
every year as a routine. Be sure there are no impeller
parts lodged in the hoses or elsewhere in the system as
they will eventually move to an inconvenient place and
restrict water flow. The raw water pump impeller should
be replaced every year or whenever it is found
to be worn or have damaged blades. Be sure to
re-assemble with the proper gaskets.
Figure 6.8 – Raw Water Pump Impeller
FUEL SYSTEM
The fuel system consists of fuel lines, fuel pump, and an
unused fuel recovery system. Fuel in the system is
under pressure and must be relieved before servicing.
Because of the inherent danger of fuel leakage into the
bilge, do not attempt servicing or maintaining compo-
nents of the fuel system.
Your Indmar dealer has factory trained technicians and
U.S. Coast Guard approved marine grade parts required
for fuel systems.
TRANSMISSIONS
NOTICE
It is important to keep the water level in the bilge below
the output shaft of the transmission. If the water level in
the bilge is too high, the coupler can splash water
inside the engine compartment and cause corrosion
problems. High water levels can also allow water intru-
sion into the transmission causing severe damage.
Indmar engines are equipped with one of these marine
transmissions:
• ZF Hurth Marine In-Line
• ZF Hurth Ski-Vee
• Walters V-Drive and ZF Hurth In-Line
• Indmar-Vee
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