Question about Heating & Cooling
Foolishly,I let my fuel level drop to about 50 litres and the system has cut out (warning light showing). I've ordered more fuel, but I would like to know if this is inherently bad for the boiler (with the likelihood of a possible blockage that will need expert attention), or whether the system should start up again when the fuel arrives.
After your fuel tank is refilled let it set if possible for solids to settle. In the line near the tank is a fuel filter. This fuel filter should be changed regularly, normally annually. The air must be vented from the fuel filter though vent screws located on top of fuel filter. Do not remove the screws completely as air will vent as they are loosened. At the burner oil pump is a vent to which you can slip on a 1/4 inch hose and direct into a container. On burner start up loosen the vent at the oil pump and observe oil going into container. When solid stream of oil is seen close the vent. The vent looks like a grease fitting on an auto.
follow these instructions: One problem that can occur is the nozzle for the burner sometimes becomes plugged if solid particles make their way to it under low oil conditions. If this becomes the case you should have a heating service tech change the nozzle and fuel filter. However try the venting procedure first. You just may be O.K.
Posted on Dec 16, 2008
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Posted on Jan 02, 2017
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It is quite normal for the exhaust manifold and turbo to get very hot, especially when the engine is working hard running at high speed under load. Every time the mixture in the cylinder is ignited there is a small explosion producing a BIG flame and a lot of heat to push the piston down. A lot of this heat goes out the exhaust. During daylight it is usually not noticeable, but at night it will visibly glow up to a bright red.
In relation to the oil pressure dropping, providing the oil level is at the correct level, there may be a restriction in the gauze filter on the input of the oil pump due to sludge buildup. Once the engine warms up and the oil thins out, the oil pump can't work at maximum capacity. The drop in RPM could be caused by the turbo getting insufficient lubrication and cooling due to the low oil pressure reducing oil flow to the turbo causing it to not work at its optimum speed and efficiency and therefore through reduced air flow into the cylinders the engine would tend to loose speed especially when under high load. The drop in RPM could also be caused by a problem with fuel flow to the injector pump causing the engine to run lean which would not allow the engine to produce maximum power and also contribute to higher exhaust temperatures because the governor would have the throttle wide open to try and maintain the engine speed when the generator is required to produce maximum output.
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