约翰迪尔发动机声音异响哒哒哒的声音如何解决呢John Deere装载机发动机电脑板配件

约翰迪尔发动机声音异响哒哒哒的声音如何解决呢John Deere装载机发动机电脑板配件,

6级ECU-E8-John Deere发动机异常噪音

症状问题解决方案

6级ECU-E8-主连杆或连杆异常磨损确定轴承间隙。看见

John Deere发动机噪音轴承缸体、缸套、活塞和连杆（组

030）CTM100第06节第200组中的规范。参见CTM100第06节第200组中的曲轴、主轴承和飞轮（040组）规格。

曲轴端隙过大检查曲轴端隙。看见

第02节第040组

CTM100。

主轴承盖松动检查轴承间隙；代替

轴承和轴承带帽螺钉。参见曲轴、主轴承和飞轮

CTM100第06节第200组中的规范。

连杆衬套磨损，检查活塞销和衬套。活塞销参见检查活塞销和

CTM100第02节030组中的杆衬套。

有划痕的活塞检查活塞。参见初步缸套、活塞和连杆

检查CTM100第02节第030组。

正时齿轮磨损或后间隙过大检查正时齿轮后间隙。参见间隙调整前正时齿轮

CTM100第02节050组中的齿隙。

气门间隙过大检查并调整气门间隙。

请参阅第02节中的检查和调整阀组件间隙和喷油器预载，

CTM100的020组。

续下页OUO10040000C42–19–20DEC00–1/2

Level 6 ECU - E8 - Abnormal Engine  Noise
Symptom Problem Solution
Level 6 ECU - E8 - Abnormal Worn main or connecting rod Determine bearing clearance. See
Engine Noise bearings  CYLINDER BLOCK, LINERS, PISTONS AND RODS (GROUP
030) SPECIFICATIONS in Section 06, Group 200 of CTM100. See CRANKSHAFT, MAIN BEARINGS AND FLYWHEEL (GROUP 040) SPECIFICATIONS in Section 06, Group 200 of CTM100.
Excessive crankshaft end play Check crankshaft end play. See
in Section 02, Group 040 of
CTM100.
Loose main bearing caps Check bearing clearance; replace
bearings and bearing cap screws as required. See CRANKSHAFT , MAIN BEARINGS, AND FLYWHEEL
SPECIFICATIONS in Section 06, Group 200 of CTM100.
Worn connecting rod bushings and Inspect piston pins and bushings. piston pins See INSPECT PISTON PINS AND
ROD BUSHINGS in Section 02, Group 030 of CTM100.
Scored pistons  Inspect pistons. See PRELIMINARY LINER, PISTON, AND ROD
CHECKS in Section 02, Group 030 of CTM100.
Worn timing gears or excess back Check timing gear back lash. See lash ADJUST FRONT TIMING GEAR
BACKLASH in Section 02, Group 050 of CTM100.
Excessive valve clearance Check and adjust valve clearance.
See CHECK AND ADJUST VALVE ASSEMBLY CLEARANCES AND INJECTOR PRELOAD in Section 02,
Group 020 of CTM100.
Continued on next page OUO1004,0000C42   –19–20DEC00–1/2
Symptom 
Problem 
Solution
 Worn camshaft Inspect camshaft. See VISUALLY
  INSPECT CAMSHAFT AND
  ROLLER FOLLOWERS in Section
  02, Group 050 of CTM100.
 Worn rocker arm shaft(s) Inspect rocker arm shafts. See
  REMOVE ROCKER ARM
  ASSEMBLY in Section 02, Group
  020 of CTM100.
 Insufficient engine lubrication See:
  L1- EXCESSIVE OIL
  CONSUMPTION (Section 04, Group
  150 of CTM100)
  AND
  L3 - ENGINE OIL PRESSURE LOW
  (Section 04, Group 150 of CTM100)
  AND
  L2 - ENGINE OIL PRESSURE HIGH
  (Section 04, Group 150 of CTM100)
 Turbocharger noise See TURBOCHARGER
  SEVEN-STEP INSPECTION in
  (Section 02, Group 080 of CTM100).