Table of Contents What are the causes of Scavenge FireWhat are the Indications of Scavenge FireWhat Actions to be taken What are the causes of Scavenge Fire Excessive wear of the linerThe piston rings wear outBroken piston rings or rings gets seized in the grooveDirty scavenge placePoor combustion takes place due to leaking fuel valveInadequate or surplus cylinder lubrication What are the Indications of Scavenge Fire Loss of power happens and irregular running of engine and reduction in rpm takes place.Abnormal exhaust temperature of equivalent unit.The high local temperature in scavenge tank.Surging of turbocharger happens.Sparks and smokes coming out from the drain box.Smoky exhaust comes out The paint may blister on the scavenge doors due to the high temperature. What Actions to be taken Action taken vary upon the kind of fire whether minor or majorFor minor fireStart reducing the engine rpm to slow or dead slowIncrease the cylinder lubrication of the affected unit considering that these don’t feed the fire.In case of increase of fire lubrication not to be reduced. The fire can be due to a leaky valve so it can be cut off for the affected unitKeep monitoring the scavenge or exhaust temperatures For major fireImmediately stop the engineQuench the fire with a permanent fire fighting system and boundary cooling of the scavenge manifold maybe necessary to prevent distortionAfter confirmation that fire is extinguished and scavenge place is opened and is inspected to find out the cause and same is to be rectified. Following steps should be taken for prevention of fire.Regular cleaning of the under piston area and the scavenge manifold is required to avoid scavenge fire.The under piston drain valve and drain should be cleared out regularly to avoid the accumulation of sludge in those areas.The piston rings should be regularly inspected for their proper functioning. Post navigation What are the important terms of Engines How to change over Duplex Filter in Auxiliary Engine