Engine - Knocking at 1,000-2,300 RPM Under a Light Load
NUMBERXT303-023
DATE
10 July 2006
MODEL
X-TYPE
SECTION: 303-01
Knock from Crankshaft Area
AFFECTED VEHICLE RANGE:
X-TYPE
VIN:
C00294 onwards
Model Year:
2002 onwards
CONDITION SUMMARY:
DULL KNOCK FROM CRANKSHAFT AREA ON LIGHT ACCELERATION
Situation:
A customer may report a concern of a "dull knock" noise coming from the engine between 1000 to 2300 RPM on light acceleration.
Eccentric motion of the number 2 main crankshaft bearing may be the cause.
Action:
Should a customer express a concern, refer to the Repair Procedure detailed in this bulletin to verify and resolve the "dull knock" noise.
PARTS:
NOTE:
C2544714 is to be used only to correct the sound located in SSM # 4401. Other repairs requiring a front engine mount should use the standard replacement part (C258710).
C2544714 Front engine mount (modified) Qty 1 (if required)
WARRANTY:
NOTE:
Repair procedures are under constant review, and therefore times are subject to change; those quoted here must be taken as guidance only. Always refer to DDW to obtain the latest repair time.
DDW requires the use of causal part numbers. Labor only claims must show the causal part number with a quantity of zero.
Normal warranty policy and procedures apply.
REPAIR PROCEDURE
VERIFY NOISE AND INSTALL FRONT ENGINE MOUNT
NOTE:
The front engine mount part # C2S44714 specified for this bulletin should only be installed after the "dull knock" noise has been verified as coming from the engine between 1000 to 2300 RPM on light acceleration. The "dull knock" noise must be consistent with the sound file located in SSM # 4401.
1. Refer to SSM # 4401 and verify that the "dull knock" noise is consistent with the sound file located in the SSM.
NOTE:
GTR lookup sequence is as follows:
2002 - 2003MY: GTR Home> NAS > Service Information/X-400 - X-TYPE/MY > Workshop Manuals > X-TYPE 2002.25-2003.00 Workshop Manual > Bookmark "Powertrain/Engine/303-01: Engine/Installation" link "Engine Front Mount (12.45.01)"
2004MY on: GTR Home> NAS > Service Information/X-400 - X-TYPE/MY > Workshop Manuals > X-TYPE 2004 Model Year Workshop Manual > Bookmark "Powertrain/Engine/303-01A:
Engine... / Installation" link "Engine Front Mount (12.45.01)"
2. If the "dull knock" is consistent with the sound file, refer to applicable GTR Workshop Manual section
303-01 or 303-01A operation 12.45.01 and install the modified front engine mount (C2S44714).
Disclaimer