Specifications

troubles. A small amount of exhaust smoke is normal during initial start-up or rapid
acceleration. Excessive black smoke is caused by a rich air-fuel mixture. This may
result form problems with the injection pump or infection timing, which may in turn be
clue to a choked air cleaner, worn fuel injectors, adulterated diesel fuel or the engine
itself. White smoke occurs mainly during cold starts, when the fuel tends to condense
into liquid and does not burn due to cold engine parts. The most common reason for
white smoke are in-operative glow plugs low engine compression, a bad injector spray
pattern, late injection timing or injection pump problems. Excessive blue smoke
indicates problems from low engine
compression and/or worn piston rings,
scored cylinder walls or leaking valve stem
seals The blue smoke is caused by
crankcase oil entering the combustion
chamber and being emitted after partial
combustion through the exhaust
As fuel manufacturers remove sulfur from
fuels in the refining processes, as well as
blending with No. 1 diesel and kerosene,
the lubrication properties of fuels are
reduced. This leads to increased wear in
the fuel injection system. after market
additives help prevent this wear with extra strength lubricants. Do not use Alcohols.
As temperatures drop, paraffin crystals precipitate from the fuel forming the waxy
substance on the filters which blocks fuel flow. This "freeze-up" condition can be
avoided by using a Wax Dispersant, which keeps wax crystals evenly distributed
throughout the fuel, thus assisting in the prevention of wax clogging the fuel system.
The Wax Modifier-Pour Point Depressant they use will lower the temperature at which
fuel will continue to pour by up to 40° F. Also, there is a Freeze Depressant, which will
lower the freeze-point of water in fuel. This can help to prevent damage from or the
clogging of fuel lines with ice.
Residual carbon deposits from combustion can build up in nozzles and around the
orifices and can obstruct the atomization of the fuel into the air preventing complete
combustion. Deposit Modifiers and Detergents soften the hard deposits allowing for
their removal. The Detergent will clean the soft deposits and prevent additional deposit
build-up. Also, they incorporate an Anti-Oxidant, which helps fuel maintain its potency
and a Corrosion Inhibitor to help protect fuel injection parts from rust and corrosion.
Fuel Pump Engine Stop Solenoid
To turn off a diesel engine the fuel supply must be cut off. There are two ways to do this.
One way is by releasing the throttle (run stop leaver) the other is by cutting off the fuel
that goes to the fuel pump.
AGI6500DE & AGI6500SDE Operator / Owners Manual Version 11.4
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