AIR INLET AND EXHAUST SYSTEMTURBOCHARGERThe turbocharger is installed on theexhaust mani-fold. All the exhaust gases from the engine gothrough the turbocharger.The exhaust gases go through the blades of theturbine wheel. This causes the turbine wheel andcompressor wheel to turn which causes a compres-sion of the inlet air.When the load on the engine goes up more fuel isput into the engine. This makes more exhaust gasesand will cause the turbine and compressor wheels ofthe turbocharger to turn faster. As the turbochargerturns faster, it gives more inlet air and makes itpossible for the engine to burn more fuel and will givethe engine more power.Maximum rpm of the turbocharger is controlledby the fuel or rack setting. the high idle speed settingand the height above sea level at which the engine isoperated.If the high idle rpm or the fuel system setting ishigher than given in the FUEL SETTING INFOR-MATION (for the height above sea level atwhich the engine is operated), there can bedamage to engine or turbocharger parts.SYSTEMS OPERATIONTM 5-3805-263-14&P-2The bearings for the turbocharger use engine oilunder pressure for lubrication. The oil comes inthrough the oil inlet port and goes through passagesin the center section for lubrication of the bearings.Oil from the turbocharger goes out through the oiloutlet port in the bottom of the center section andgoes back to the engine lubrication system.The fuel system adjustment is done at the factoryfor a specific engine application. The governor hous-ing and turbocharger are sealed to prevent changesin the adjustment of the fuel or rack setting and thehigh idle speed setting.TIMING GEARSThe timing gears are at the front of the cylinderblock. Their cover is the housing for the timing gears.The timing gears keep the rotation of the crankshaft,camshaft and fuel injection pump in the correct rela-tion to each other. The timing gears are driven by thecrankshaft gear.1-13
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
