The service book IV / ALFA 8 03-9940.186
The fuel supply
It is necessary to use the appropriate fuel to establish a reliable function of the heater in the whole
temperature range. It is possible to use any fuel oil at the temperatures over 0oC, winter diesel oil down to -
20o C and a mixture of the winter diesel oil with kerosene or petrol at the ratio of 1:1, or special arctic diesel
oil alternatively, under -20oC. It is necessary to solve the fuel system with regard for capacity of the fuel
pump. It is also necessary to avoid installing any part of the fuel system near a source of heat (the exhaust,
the radiator etc.) and to assure that it cannot collide with any moving part of the chassis (suspension or the
axle). The fuel piping from the pump to the heater must not incline and underpressure should not arise at
the collection place of the fuel (fuel tank, pipes). It is recommended to use polyamide hoses with the caliber
about 2 mm for the fuel supply line and to use only rubber hose unions to connect them. The hoses have to
be cut even, without burrs or deformation and their ends have to be pushed close to each other inside the
connecting hose so that air bubbles cannot form there. Cut the hoses with a knife (does not use wire cutter,
shear or saw).
Prevent the formation of air bubbles
Regulation of fuel standards:
Diesel EN 590
BIO diesel ČSN 65 6509 (containing up to 5% rapeseed oil methyl ester)
Light heating oil
Pump
The pump must be mounted on a vehicle using a spring washer (silent block), which is part of the kit. It
must also ensure a certain position of the pump (see fig. below) to prevent its spontaneous aeration.
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