Chrysler 300/300 Touring/300C, Dodge Magnum. Manual — part 1698
20. Remove front turbo retaining bolts (1).
21. Remove turbo mount retaining bolts.
22. Remove turbo.
23. Disconnect turbo boost pressure servo connector
(2).
INSPECTION
Visually inspect the turbocharger and exhaust manifold
gasket surfaces. Replace stripped or eroded mounting
studs.
1. Visually inspect the turbocharger for cracks. The
following cracks are NOT acceptable:
•
Cracks in the turbine and compressor housing
that go completely through.
•
Cracks in the mounting flange that are longer
than 15 mm (0.6 in.).
•
Cracks in the mounting flange that intersect bolt
through-holes.
•
Two (2) Cracks in the mounting flange that are
closer than 6.4 mm (0.25 in.) together.
2. Visually inspect the impeller and compressor wheel
fins for nicks, cracks, or chips. Note: Some impel-
lers may have a factory placed paint mark which, after normal operation, appears to be a crack. Remove this
mark with a suitable solvent to verify that it is not a crack.
3. Visually inspect the turbocharger compressor housing for an impeller rubbing condition. Replace the turbocharger
if the condition exists.
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EXHAUST SYSTEM
LX
4. Measure the turbocharger end play:
a. Install a dial indicator (1) as shown. Zero the
indicator at one end of travel.
b. Move the impeller shaft fore and aft and record
the measurement. Allowable end play is 0.026
mm (0.0001 in.) MIN. and 0.127 mm (0.005 in.)
MAX. If the recorded measurement falls out-
side these parameters, replace the turbo-
charger assembly.
5. Measure the turbocharger bearing radial clearance:
a. Insert a narrow blade or wire style feeler gauge
(1) between the compressor wheel and the
housing.
b. Gently push the compressor wheel toward the
housing and record the clearance.
c. With the feeler gauge in the same location,
gently push the compressor wheel away from
the housing and again record the clearance.
d. Subtract the smaller clearance from the larger
clearance. This is the radial bearing clearance.
e. Allowable radial bearing clearance is 0.076 mm
(0.003 in.) MIN. and 0.102 mm (0.040 in.)
MAX. If the recorded measurement falls out-
side these specifications, replace the turbo-
charger assembly.
LX
EXHAUST SYSTEM
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INSTALLATION
1. Reconnect turbo boost pressure servo connector
(2).
2. Position and install the turbocharger on the exhaust
manifold, tighten the retainers to 30N.m (22 lbs.ft.).
CAUTION: Make sure the gasket is installed prop-
erly or the turbo oil feed hole will be blocket.
3. Install front turbo retaining bolts and gasket and
install turbo (1).
4. Install left and right exhaust manifold retaining bolts
and gaskets (4).
5. Reconnect EGR tube at manifold to left cylinder
head (3).
6. Reconnect EGR tube at manifold to left cylinder
head (3).
7. Reconnect transmission fill tube and trim cover
bracket and set aside.
8. Install upstream catalytic converter.
9. Raise vehicle and reconnect catalytic converter to
downstream catalytic converter clamp.
10. Install extension pipe and catalytic converter.
11. Reconnect O2 sensor wire connector.
12. Reconnect the extension pipe to muffler.
13. Reconnect the downstream catalytic converter at
the extension pipe.
14. Refill cooling system (Refer to 7 - COOLING/EN-
GINE/COOLANT - STANDARD PROCEDURE).
15. Lower vehicle, install the turbo front bracket retaining bolts (2).
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EXHAUST SYSTEM
LX
16. Install the exhaust clamp (elbow to converter) (1).
17. Install the turbo heat shield (4).
18. Install air tube (turbo to cooler) (3).
19. Install engine cover front bracket (2).
20. Install air intake tube (air cleaner to turbo) (1).
21. Install the engine trim cover.
22. Reconnect negative battery cable.
LX
EXHAUST SYSTEM
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