现代柴油车培训发动机机械系统维修

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1、百威千汽车维修论坛：www.100v1000.comQQ：342662833发动机机械系统［2.5TCI］概述······································································EM-2发动机气缸体·····································································EM-24主运动系统······································

2、······························EM-35冷却系统····································································EM-42润滑系统····································································EM-51进气和排气系统························································

3、············EM-56缸盖总成····································································EM-70正时系统····································································EM-78百威千汽车维修论坛：www.100v1000.comQQ：342662833EM-2发动机机械系统［2.5TCI］概述概述ELCB0010［2.5TCI］增压补偿

4、器涡轮增压器机油尺机油滤清器发电机油底壳油底壳EGR阀废气旁通阀飞轮自动怠速提升执行器喷油泵ECLA001B百威千汽车维修论坛：www.100v1000.comQQ：342662833概述百威千汽车维修论坛：www.100v1000.comQQ：342662833EM-3技术规格ELCB0020标准极限发动机型号D4BH（2.5TCI）类型柴油发动机缸数4缸直列配气机构顶置凸轮轴总排量2.467cc孔径×冲程91.1×95mm压缩比21配气正时进气门开启（BTDC）20°关闭（ABDC）48°排气门

5、开启（BBDC）54°关闭（ATDC）22°点火顺序1-3-4-2缸盖衬垫表面不平度0.05mm（0.002in.）0.2mm（0.0079in.）安装表面不平度0.15mm（0.006in.）0.3mm（0.0118in.）总高94.0-94.1mm（3.701-3.705in.）气门导管孔的加大修理尺寸（包括进气和排气）0.0513.050-13.068mm（0.5138-0.5145）0.2513.250-13.268mm（0.5127-0.5224）0.5013.500-13.518mm（0

6、.5315-0.5322）进气门座环孔的加大修理尺寸0.3043.300-43.325mm（1.7047-1.7057in.）0.6043.600-43.625mm（1.7165-1.7175in.）进气门座环孔的加大修理尺寸0.3037.300-37.325mm（1.4685-1.4695in.）0.6037.600-37.625mm（1.4803-1.4813in.）凸轮轴凸轮高进气和排气37.05mm（1.4587in.）36.55mm（1.4389）轴颈直径29.94-29.95mm（1.1

7、787-1.1791in.）油隙0.05-0.08mm（0.002-0.0031in.）0.13mm（0.005in.）端隙0.1-0.2mm（0.0039-0.0079in.）0.4mm（0.0157in.）摇臂内径18.910-18.928mm（0.7445-0.7452in.）0.08mm（0.0031in.）摇臂至轴间隙0.012-0.050mm（0.0005-0.0020in.）摇臂轴外径18.878-18.898mm（0.7432-0.7440in.）百威千汽车维修论坛：www.100v

8、1000.comQQ：342662833EM-4发动机机械系统［2.5TCI］标准极限气门总长进气和排气136.5mm（5.3740in.）气门杆直径进气7.96-7.975mm（0.3133-0.3140in.）排气7.93-7.950mm（0.3122-0.3130in.）气门锥角45°-45°30′气门头厚度（边宽）进气和排气2.0mm（0.078in.）1.0mm（0.0394in.）气门杆至导管间隙进气0.03-0.06mm（0.0012-0.0024in.