Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1543
18. Install front timing belt cover (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT / CHAIN COVER(S) -
INSTALLATION).
19. Install oil pickup tube and tighten bolt to 28 N·m (250 in. lbs.).
20. Install oil pan (Refer to 9 - ENGINE/LUBRICATION/OIL PAN - INSTALLATION).
21. Install engine assembly (Refer to 9 - ENGINE - INSTALLATION).
22. Fill engine crankcase with proper amount of oil.
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ENGINE - 3.5L - SERVICE INFORMATION
LX
BEARING -CRANKSHAFT MAIN
STANDARD PROCEDURE
CRANKSHAFT MAIN BEARING FITTING
The main bearings are a “select fit” to achieve proper
oil clearances. For main bearing selection, the block
and crankshaft have grade identification marks.
The marks for the cylinder block main bore grade are
located on the right front side of the engine block.
These grade marks (1, 2, or 3) are read left to right,
corresponding to main bore 1, 2, 3, 4. The 5th digit is
a
check
some
digit
for
plant
validation
during
manufacturing.
The grade marks for the crankshaft are located on the
rearmost crankshaft counter weight as shown in. The
crankshaft journal grade marks (A, B, or C) are read
left to right, corresponding with journal number 1, 2, 3,
4.
Refer to the MAIN BEARING SELECTION CHART to
properly select the main bearings. For an example, if
the main bore grade is 3 and the journal grade is B,
the proper select fit bearing would be a (2) +0.003 mm
(+0.0002 in.).
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ENGINE - 3.5L - SERVICE INFORMATION
9 - 2197
NOTE: Service main bearings have a number from
(1–5) marked in ink on the bearing surface. For
verification, refer to the MAIN BEARING SELEC-
TION CHART for number to size identification.
The upper main bearing (2) has a oil feed hole and a
center groove to allow lubrication of the main journal
and must be properly positioned in the block.
MAIN BEARING SELECTION CHART
Main Bearing Bore Grade Marks
1
2
3
Crankshaft Main Journal Grade
Marks
Each bearing grade increment of
0.003 mm is for wall thickness so
diametrical clearances are
adjusted 0.006 mm per select fit
class
A
(3) Standard
(2) +003 mm
(+0.0001 in.)
(1) +0.006 mm
(+0.0002 in.)
B
(4) -0.003 mm
(-0.0001 in.)
(3) Standard
(2) +003 mm
(+0.0001 in.)
C
(5) -0.006 mm
(-0.0002 in.)
(4) -0.003 mm
(-0.0001 in.)
(3) Standard
CHART 1
Crankshaft Diameter (mm)
Min
Max
Grade
63.9870 mm
63.9956 mm
A
63.9957 mm
64.0042 mm
B
64.0043 mm
64.0130 mm
C
CHART 2
Block Main Bore Diameter (mm)
Min
Max
Grade
68.9895 mm
68.9964 mm
1
68.9965 mm
69.0034 mm
2
69.0035 mm
69.0105 mm
3
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ENGINE - 3.5L - SERVICE INFORMATION
LX
Block Main Bore Grade
1
2
3
Crankshaft Journal Grade
A
Class 3
Class 2
Class 1
B
Class 4
Class 3
Class 2
C
Class 5
Class 4
Class 3
REMOVAL
Bearing caps are not interchangeable and are marked
to insure correct assembly. Upper and lower bearing
halves are NOT interchangeable.
1. Remove oil pan. (Refer to 9 - ENGINE/LUBRICA-
TION/OIL PAN - REMOVAL)
2. Remove oil pick-up tube and windage tray.
3. Identify bearing caps before removal.
4. Remove bearing caps one at a time. Remove
upper half of bearing by inserting Main Bearing
Tool C-3059 into the oil hole of crankshaft.
5. Slowly rotate crankshaft clockwise, forcing out
upper half of bearing shell.
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ENGINE - 3.5L - SERVICE INFORMATION
9 - 2199
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