Inspect the flanges that mate to the compressor
housing for nicks or gouging.
The flanges must be smooth to provide proper
clearance for compressor wheel and turbine wheel.
Replace the housing if the bores are scored or
show signs of excessive wear.
When lubricating of parts is specified, use the
same type oil as used in the engine.
(Reference numbers in parenthesis refer to
Figure 7, unless otherwise specified.)
If the inboard bearing retainers (18) were
removed, use a sharp pick to install new
retainers into their grooves in the bore of the
center housing. Insure the retainers are properly
seated in the grooves.
Lubricate the housing bearings (19) with clean
engine oil and push them into the bores until
they seat against the retainers (18). Install new
outer retainers (18) after installing bearings.
Install the piston ring (14) into the groove on the
Place the shroud (24) over the turbine end of the
center housing. Carefully insert the shaft (25)
through the shroud and center housing.
Install a new seal ring onto the thrust collar (Fig.
20). Install the thrust washer onto the collar with
the flat surface of the washer next to the large
diameter of the collar (Fig. 21).
Install the thrust collar and washer over the shaft
(25), thrust washer first and engage the holes in
the washer with the anti-rotating pins (Fig. 18) in
the center housing.
1. Thrust Washer
2. Thrust Collar
Install a new seal ring (13) into the groove in the
compressor side of the center housing.
Insure the thrust spring is correctly seated in the
back plate (Fig. 22).
Fig. 22. Thrust Spring In Back Plate
1. Back Plate
2. Thrust Spring
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