約翰迪爾發動機聲音異響噠噠噠的聲音如何解決呢John Deere裝載機發動機電腦板配件,

6級ECU-E8-John Deere發動機異常噪音

癥狀問題解決方案

6級ECU-E8-主連桿或連桿異常磨損確定軸承間隙?？匆?

John Deere發動機噪音軸承缸體、缸套、活塞和連桿（組

030）CTM100第06節第200組中的規范。參見CTM100第06節第200組中的曲軸、主軸承和飛輪（040組）規格。

曲軸端隙過大檢查曲軸端隙。看見

第02節第040組

CTM100。

主軸承蓋松動檢查軸承間隙；代替

軸承和軸承帶帽螺釘。參見曲軸、主軸承和飛輪

CTM100第06節第200組中的規范。

連桿襯套磨損，檢查活塞銷和襯套。活塞銷參見檢查活塞銷和

CTM100第02節030組中的桿襯套。

有劃痕的活塞檢查活塞。參見初步缸套、活塞和連桿

檢查CTM100第02節第030組。

正時齒輪磨損或后間隙過大檢查正時齒輪后間隙。參見間隙調整前正時齒輪

CTM100第02節050組中的齒隙。

氣門間隙過大檢查并調整氣門間隙。

請參閱第02節中的檢查和調整閥組件間隙和噴油器預載，

CTM100的020組。

續下頁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).