This can be due to the following reasons Compression pressure is low, and the peak pressure is also too lowīelow deficiency diagram shows diagram shows that the compression pressure is low, and the peak pressure is also too low. This is due to late injection caused by the following factors:. + Leaky fuel injector Peak pressure is too low.īelow diagram shows the compression is same but the peak pressure is too low. – The causes could be due to Early Injection which is caused by – Compression pressure is very normal but the maximum firing pressure is too high compared to the normal diagram. Remove the hook, turn the drum by hand to a place clear form for the power diagram, take compression pressure line with the fuel cut off.Īfter taking indicator cards from all the cylinders, open the instrument and clean all the parts, and lubricate the same.
In that case the compression and expansion diagrams with the fuel cut off should coincide. It then represents the travel of the power piston.
Monster powercard turbo mbl pcard pnch free#
Play in the pencil mechanism will distort he diagram.Ĥ) The cock should be free from accumulation of soot and oil.ĥ) The stylus should be adjusted to a light writing pressure.Ħ) The drum when actuated the motion of the power piston by a cam should be correctly position. The bottom of the cylinder is closed and the piston should be held in its position.ģ) The drum should not hit the stop at end position. This is done by dismantling the piston and allowing it to drop slowly through the cylinder by its own weight.
ADDITIONAL INFORMATION TO BE COLLECTED FOR CLEAR JUDGEMENTħ) JCW outlet temp, piston cooling oil, cooling water outlet temp.ĩ) Turbocharger R.P.M / exhaust gas back pressure.ġ1) Air filter temp of air before filter.ġ2) Fuel consumption (Flow meter reading before and after on a time bound), cylinder oil consumption.ġ) To reduce effect of friction the indicator card piston is removed, the piston and the cylinder is cleaned and lubricated.Ģ) The tightness of the indicator piston in the cylinder is checked. Ship may be under exploited or overloaded…all these condition the diagram will be deceiving.
Monster powercard turbo mbl pcard pnch full#
If the ship is lightly laden with the propeller partly immersed or if the ship is running with a favour of wind or sea the engine does not develop its full power than normal at same speed. Compression pressure is low, and the peak pressure is also too lowĢ) The ship is fully laden at an even keel.ģ) The ship is running neither with nor against a head wind or heavy sea.Ĥ) The hull is not fouled by an under growth.ADDITIONAL INFORMATION TO BE COLLECTED FOR CLEAR JUDGEMENT.
Indicator Diagrams, Power card, Draw card, Power calculation.
0 kommentar(er)
