Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1530
CLEANING
To ensure engine gasket sealing, proper surface preparation must be performed, especially with the use of alumi-
num engine components and multi-layer steel cylinder head gaskets.
NOTE: Multi-Layer Steel (MLS) head gaskets require a scratch free sealing surface.
Remove all gasket material from cylinder head and block (Refer to 9 - ENGINE - STANDARD PROCEDURE). Be
careful not to gouge or scratch the aluminum head sealing surface.
Clean all engine oil passages.
INSPECTION
1. Before cleaning, check for leaks, damage and
cracks.
2. Clean cylinder head and oil passages.
3. Check cylinder head for flatness.
4. Cylinder head must be flat within:
•
Standard dimension = less than 0.05 mm (0.002
inch.)
•
Service Limit = 0.2 mm (0.008 inch.)
•
Grinding Limit = Maximum of 0.2 mm (0.008
inch.) is permitted.
CAUTION: 0.20 mm (0.008 in.) MAX is a combined
total dimension of the stock removal limit from
cylinder
head
and
block
top
surface
(Deck)
together.
INSTALLATION - CYLINDER HEAD(S)
RIGHT CYLINDER HEAD
CAUTION: THE CYLINDER HEAD GASKETS ARE
NOT INTERCHANGEABLE BETWEEN CYLINDER
HEADS AND ARE CLEARLY MARKED RIGHT OR
LEFT.
The cylinder head bolts are tightened using a
torque plus angle procedure. The bolts must be
examined
BEFORE
reuse.
If
the
threads
are
necked down the bolts must be replaced..
Necking can be checked by holding a scale or straight
edge against the threads. If all the threads do not con-
tact the scale the bolt must be replaced.
CAUTION: When cleaning cylinder head and cylin-
der block surfaces, DO NOT use a metal scraper
because the surfaces could be cut or ground. Use
ONLY a wooden or plastic scraper (Refer to 9 -
ENGINE - STANDARD PROCEDURE - ENGINE
GASKET SURFACE PREPARATION).
1. Clean sealing surfaces of cylinder head and block.
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ENGINE - 3.5L - SERVICE INFORMATION
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CAUTION: Ensure that the correct head gaskets are used and are oriented correctly on cylinder block.
NOTE: Before installing the cylinder head bolts, lubricate the threads with clean engine oil.
2. Install the cylinder head over locating dowels and finger tighten the head bolts.
3. Tighten the cylinder head bolts in the following sequence, using the 4 step torque-turn method. Tighten according
to the following torque values:.
•
Step 1: All to 61 N·m (45 ft. lbs.)
•
Step 2: All to 88 N·m (65 ft. lbs.)
•
Step 3: All (again) to 88 N·m (65 ft. lbs.)
•
Step 4: + 90° Turn Do not use a torque wrench for this step.
4. Bolt torque after 90° turn should be over 122 N·m (90 ft. lbs.) in the tightening direction. If not, replace the bolt.
5. Install the inner timing cover to cylinder head bolts.
Tighten bolts to 54 N·m (40 lbs.ft.).
6. Install camshaft sprocket (2) Counterhold the cam-
shaft sprocket gear (2) and tighten the camshaft
sprocket bolt to 102 N·m plus a 1/4 turn (75 lbs. ft.
plus a 1/4 turn). (Refer to 9 - ENGINE/VALVE TIM-
ING/TIMING BELT/CHAIN AND SPROCKETS -
INSTALLATION).
7. Install the rear camshaft thrust plate (1) and seal
(3) and the EGR valve.
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ENGINE - 3.5L - SERVICE INFORMATION
9 - 2145
8. Rotate the camshaft gear to it’s alignment mark (1) and check the left camshaft gear (7) and crankshaft gear
timing alignment marks (9).
9. Install the timing belt (4) and tensioner (12) (Refer to 9 - ENGINE/VALVE TIMING/TIMING BELT/CHAIN AND
SPROCKETS - INSTALLATION).
TIMING GEAR ALIGNMENT
1 - RIGHT CAMSHAFT GEAR ALIGNMENT MARK
7 - LEFT CAMSHAFT GEAR
2 - RIGHT CAMSHAFT GEAR
8 - LEFT CAMSHAFT GEAR ALIGNMENT MARK
3 - CYLINDER HEAD TO INNER TIMING BELT COVER BOLTS -
RIGHT
9 - CRANKSHAFT GEAR ALIGNMENT MARK
4 - TIMING BELT
10 - CRANKSHAFT GEAR
5 - WATER PUMP PULLEY
11 - TIMING BELT TENSIONER PULLEY
6 - CYLINDER HEAD TO INNER TIMING BELT COVER BOLTS -
LEFT
12 - TIMING BELT TENSIONER
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ENGINE - 3.5L - SERVICE INFORMATION
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10. Install the timing belt outer cover (1) (Refer to 9 -
ENGINE/VALVE TIMING/TIMING BELT / CHAIN
COVER(S) - INSTALLATION).
11. Install the power steering reservoir (2).
12. Install the vibration damper (4) (Refer to 9 -
ENGINE/ENGINE BLOCK/VIBRATION DAMPER -
INSTALLATION).
13. Install the accessory drive belt tensioner (1).
14. Install the accessory drive belt idler pulley.
LX
ENGINE - 3.5L - SERVICE INFORMATION
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