Jeep Wrangler TJ. Manual - part 438
(13) Install pick-up tube and oil pan (Refer to 9 -
ENGINE/LUBRICATION/OIL
PAN
-
INSTALLA-
TION).
(14) Fill engine crankcase with proper oil to cor-
rect level.
BALANCE SHAFT CARRIER
DESCRIPTION
The 2.4L engine is equipped with two nodular cast
iron balance shafts installed in a cast aluminum car-
rier attached to the lower cylinder block (Fig. 118).
OPERATION
The balance shafts are driven by the crankshaft
via a roller chain and sprockets. The balance shafts
are connected by helical gears. The dual counter
rotating shafts decrease second order vertical shak-
ing forces caused by component movement.
REMOVAL
(Refer to 9 - ENGINE/VALVE TIMING/BALANCE
SHAFT - REMOVAL)
INSTALLATION
(Refer to 9 - ENGINE/VALVE TIMING/BALANCE
SHAFT - INSTALLATION)
BALANCE SHAFT CHAIN
REMOVAL
(Refer to 9 - ENGINE/VALVE TIMING/BALANCE
SHAFT - REMOVAL)
INSTALLATION
(Refer to 9 - ENGINE/VALVE TIMING/BALANCE
SHAFT - INSTALLATION)
Fig. 118 Balance Shafts and Carrier Assembly
1 - SPROCKET
7 - GEARS
2 - TENSIONER
8 - GEAR COVER
3 - PLUG
9 - CHAIN COVER
4 - CARRIER
10 - SPROCKET
5 - REAR COVER
11 - GUIDE
6 - BALANCE SHAFTS
12 - CHAIN
TJ
ENGINE 2.4L
9 - 67
BALANCE SHAFTS AND CARRIER ASSEMBLY (Continued)