Excessive Engine Oil Consumption - Inspect
检查曲轴两端的油封是否漏油。 查看发动机油底壳密封垫和所有润滑系统接头有无渗漏。 查看曲轴箱通气装置是否有任何漏油。 这可能是由于燃烧气体从活塞周围的漏出导致的。 肮脏的曲轴箱通气装置会造成曲轴箱压力高。 肮脏的曲轴箱通气装置也会导致密封垫和密封渗漏。
发动机机油漏进气缸的燃烧区域会造成排气冒蓝烟。 机油可能通过四种途径漏入气缸的燃烧区域:
- 通过磨损的气门导管和气门杆之间漏入
- 磨损或损坏的部件(活塞、活塞环或油环槽内肮脏的发动机机油回油孔)
- 压缩环和/或中间环安装不正确
- 通过涡轮增压器轴的密封环漏入
- 曲轴箱机油加注过满
- 安装了错误的油位表或导管
- 发动机长时间轻负荷运转
如果使用的发动机机油粘度不正确,也会造成发动机机油消耗量过多。 发动机温度升高会导致机油粘度变稀。
Caterpillar Information System:
C7.1 Industrial Engine and Generator Set Diesel Particulate Filter Has Low Inlet Pressure
C27 and C32 Tier 4 Engines Air Inlet and Exhaust Lines
362-4250 Deck Height Measuring Tool{1201} 362-4250 Deck Height Measuring Tool{1201}
C18 Generator Set Generator - Install
C18 Generator Set Generator - Remove
C27 and C32 Tier 4 Engines Exhaust Diffuser Adapter
C27 Generator Set Engines Inlet Air Temperature Sensor
C4.4 Industrial Engine Customer Assistance
320E and 323E Excavators Engine Oil Sample - Obtain
345D MHPU and 349D MHPU Mobile Hydraulic Power Units Joystick Controls Alternate Patterns - If Equipped
C7.1 Industrial Engine and Generator Set Diesel Particulate Filter Has High Inlet Pressure
3500 Engines Piston and Rings - One-Piece Piston
Capturing Photo, Video, or Audio Evidence of Machine Issues{0336, 1000, 7000} Capturing Photo, Video, or Audio Evidence of Machine Issues{0336, 1000, 7000}
349F and 352F Excavators Machine System Swing Drive
C9.3 Industrial Engine Fuel Filter Base - Remove and Install - Primary
C27 Generator Set Engines Sensor Signal (Analog, Active) - Test
C27 and C32 Tier 4 Engines Exhaust Manifold
C27 Generator Set Engines Sensor Signal (Analog, Passive) - Test
349F and 352F Excavators Machine System Bypass Valve (Return) - Bypass Check Valve
C27 and C32 Tier 4 Engines Air Shutoff
349F and 352F Excavators Hydraulic System Hydraulic Tank and Filter
242-3567 Variable Crimp Die Bowl{0684} 242-3567 Variable Crimp Die Bowl{0684}
C27 Generator Set Engines Sensor Supply - Test
C27 and C32 Tier 4 Engines Flywheel Housing