G424 Service Manual Base Engine Service Procedure147
3EN0166
6EM0207
DEN0711
D Counterbalance shaft front bearing removal
(1) Using the special tool, remove the counterbalance shaft
front bearing from the cylinder block.
NOTE: Be sure to remove the front bearing first. If it has not
been removed, the rear bearing puller cannot be used.
E Counterbalance shaft rear bearing removal
(1) Using the special tool, remove the counterbalance shaft
rear bearing from the cylinder block.
NOTE: When removing the left counterbalance shaft
bearing, install the special tool (MB991603) in front of the
cylinder block.
Inspection
1. Front Case
(1) Check oil holes for clogging and clean if necessary.
(2) Check the left counterbalance shaft front bearing section
for wear, damage and seizure. If there is anything wrong
with the section, replace the front case.
(3) Check the front case for cracks and other damage.
Replace cracked or damaged front case.
2. Oil Seal
(1) Check the oil seal lip for wear and Replace oil seal if
necessary.
(2) Check the oil seal lip for deterioration. Replace oil seal if
necessary.
3. Counterbalance Shaft
(1) Check oil hole for clogging.
(2) Check journals for seizure, damaged and contact with
bearing. If there is anything wrong with the journal
assembly.
MD998371
MB991603
MD998372
Front
bearing
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