Chrysler RAM TRUCK 2500 1994 Service Manual page 908

•
EXHAUST SYSTEM AND INTAKE MANIFOLD 11 - 19
Fig. 20 Turbine Housing Lock Plates and Clamp
Plates
(20) Remove and discard the piston ring type seal
(Fig. 21).
CAUTION: The w h e e l a n d shaft assembly is bal­
anced a s a unit. If t h e t u r b i n e blades or shaft are
damaged, t h e c o m p l e t e a s s e m b l y m u s t be replaced.
(21) Remove and discard the outer retainer rings
(Fig. 22).
(22) Remove and discard the turbocharger shaft
bearings (Fig. 22),
(23) Remove and discard the inner snap rings (Fig.
Fig. 21 Turbine Wheel Shaft and Heat Shield
CLEANING
Use a stiff bristle nylon brush and solvent to clean
all parts. Do not use a wire brush on the compressor
wheel. Do not bead blast the parts.
Remove the carbon build up from the housing with
a scraper and a 240 grit emery cloth.
Polish the bearing surfaces with crocus and kero­
sene or diesel fuel.
After rinsing i n clean solvent, use compressed air
to dry the parts.
INSPECTION
I n addition to the inspection specified during disas­
sembly, inspect all parts after cleaning.
J9111-14
Fig. 22 Snap Rings and Shaft Bearing
Measure the shaft bearing diameter (Fig. 23). The
minimum diameter should be 10.97 mm (0.432 inch).
ASSEMBLE
SHAFT BEARING
| J9111-15
Fig. 23 Shaft Bearing Diameter
The balance marks must be aligned to make sure
the wheel and shaft assembly is balanced.
(1) Install the piston ring and lubricate the groove
with engine oil.
(2) Install the heat shield (Fig. 24).
(3) Clamp a socket i n a soft jawed vice and posi­
tion the shaft i n the socket.
(4) Install the inner retainer rings. The beveled
face must be towards the bearing (Fig. 25).
(5) Lubricate the turbocharger bearing with engine
oil and install the bearings i n the housing.
(6) Install the outer retainer ring. The beveled face
must be towards the bearings (Fig. 26).
(7) Assemble the turbine shaft and heat shield to
the bearing housing. Rotating the housing as you
press downward will assist i n properly seating the
piston ring.