Owner`s manual

GENERAL INFORMATION
ENGINE:
Universal Diesel
engines are four stroke engines. They are designed with special swirl combustion
chambers,
balanced crankshaft system for minimum vibration and noise levels.
COOLING
SYSTEM: All Models Except M-15
Engines are fresh water cooled, employing a rubber impeller sea water pump moving sea water
through a heat exchanger thereby
lowering the temperature of the fresh water coolant. A fresh
water
coolant supply is maintained in the expansion tank which is an integral part of the exhaust
manifold. Coolant level should be checked at regular intervals and at least once each season for
leakage, deposits and general condition. Always close the sea water cock before attempting any
work
on the coolant system. (Note the make of sea water pump for service parts under general
information. )
COOLING SYSTEM: Model M-15
Engine is sea water cooled, having a rubber impeller sea water pump, with a recirculating
temperature control thermostat. The mixing tee is to be located below the engine and sea water
level to prevent air from entering the system causing overheating.
LUBRICATION SYSTEM:
Engines are pressure lubricated and use replaceable oil filters which should be changed regularly.
FUEL SYSTEM:
Tt'le fuel system utilizes either an electric on all current models or mechanical fuel pump on early
M-15 & M-40, fuel filter, fuel injection pump with injectors and necessary fuel lines. Unused fuel
coming from the injector nozzles is returned to the top of the fuel supply tank through a fuel return
line.
ELECTRICAL SYSTEM:
All models
are equipped with a 12 volt starter and a 51 amp alternator. Battery cable connections
as
well as all other electrical connections should be checked regularly. The V-belt driving the alter-
nator and water pump should have finger pressure deflection of approximately 1/2".
1. Battery ground cable (-) should be connected to a component or cylinder block which is
constructed of cast iron or
steel.
2. Do not connect to the transmission, bell housing or front timing cover case.
3. It is recommended all ground connections are secure and properly coated to prevent corro-
sion or improper grounding.
Check connection semi-annually.
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