Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 517
DS-41
Rear Drive Shaft
DRIVE SHAFT SYSTEM
2. EXCEPT FOR STI MODEL
CAUTION:
Wrap shaft splines with vinyl tape to protect the
boot from scratches.
NOTE:
Use specified grease.
EBJ side:
NKG814
DOJ side:
NKG814
1) Install the EBJ boot to the specified position, and
fill it with 50 to 60 g (1.76 to 2.12 oz) of specified
grease.
2) Place the DOJ boot at the center of shaft.
3) Insert the DOJ cage onto shaft.
NOTE:
Insert the cage with the cutout portion facing the
shaft end, since the cage has an orientation.
4) Install the DOJ inner race on shaft and fix the
snap ring in place with pliers.
NOTE:
Confirm that the snap ring is completely fitted in the
shaft groove.
5) Install the cage to inner race fixed upon shaft.
NOTE:
Fit the cage with the protruding section aligned with
the track on the inner race, and turn by a half pitch.
6) Fill 80 to 90 g (2.82 to 3.17 oz) of specified
grease into the inner side of the DOJ outer race.
7) Apply a thin coat of specified grease to the cage
pocket and ball.
8) Insert the ball bearings into the cage pocket.
9) Align the outer race track and ball positions, and
place the shaft, inner race, cage and ball bearings
in the original positions, and then fix outer race in
place.
(A) Cage
(B) Cutout portion
DS-00395
(B)
(A)
DS-00128
(A) Inner race
(B) Cage
(A) Outer race
(B) Grease
DS-00129
(B)
(A)
DS-00126
(B)
(A)
DS-42
Rear Drive Shaft
DRIVE SHAFT SYSTEM
10) Install the snap ring in the groove on the DOJ
outer race.
NOTE:
• Assure that the balls, cage and inner race are
completely fitted in the outer race of DOJ.
• Use care not to place the matched position of
snap ring in the ball groove of outer race.
• Pull the shaft lightly and assure that the circlip is
completely fitted in the groove.
11) Apply an even coat of the specified grease [20
to 30 g (0.71 to 1.06 oz)] to the entire inner surface
of boot. Also apply grease to the shaft.
12) Install the DOJ boot taking care not to twist it.
NOTE:
• The inside of the large end of DOJ boot and the
boot groove shall be cleaned so as to be free from
grease and other substances.
• When installing the DOJ boot, position the outer
race of DOJ at center of the stroke.
13) Put a new band through the clip and wind twice
in the band groove of the boot.
14) Pinch the end of band with pliers. Hold the clip
and tighten securely.
NOTE:
When tightening boot, use care so that the air with-
in the boot is appropriate.
15) Tighten the band using the ST.
ST 925091000
BAND TIGHTENING TOOL
NOTE:
Tighten the band until it cannot be moved by hand.
16) Tap the clip with the punch provided at the end
of the ST.
ST 925091000
BAND TIGHTENING TOOL
NOTE:
Tap to an extent that the boot underneath is not
damaged.
17) Cut off the band with an allowance of about 10
mm (0.39 in) left from the clip and bend this allow-
ance over the clip.
NOTE:
Be careful so that the end of the band is in close
contact with clip.
18) Install the EBJ boot using the same procedures
as for the DOJ boot.
19) Extend and retract the DOJ repeatedly to pro-
vide an equal coating of grease.
E: INSPECTION
Check the removed parts for damage, wear, corro-
sion etc. Repair or replace if defective.
• EDJ (high-efficiency compact double offset joint)
Check for seizure, corrosion, damage, wear and
excessive play.
• DOJ (Double Offset Joint)
Check for seizure, corrosion, damage, wear and
excessive play.
• EBJ (high-efficiency compact ball fixed joint)
Check for seizure, corrosion, damage, wear and
excessive play.
• Shaft
Check for excessive bending, twisting, damage
and wear.
• Boot
Check for wear, warping, breakage and scratches.
• Grease
Check for discoloration and fluidity.
DS-00125
DS-00132
DS-00133
DS-43
General Diagnostic Table
DRIVE SHAFT SYSTEM
9. General Diagnostic Table
A: INSPECTION
NOTE:
Vibration while cruising may be caused by an unbalanced tire, improper tire inflation pressure, improper
wheel alignment, etc.
Symptoms
Possible cause
Corrective action
Noise or vibration from propeller shaft Center bearing
Runout of propeller shaft
Loose or gap at connections
Abnormal wheel vibration
Wheel is out of balance.
Check the wheel balance. <Ref. to WT-6,
WHEEL BALANCING, INSPECTION, Tire and
Wheel.>
Front wheel alignment
Check the front wheel alignment. <Ref. to FS-8,
INSPECTION, Wheel Alignment.>
Rear wheel alignment
Check the rear wheel alignment. <Ref. to RS-8,
INSPECTION, Wheel Alignment.>
Front strut
Check the front strut. <Ref. to FS-26, INSPEC-
TION, Front Strut.>
Rear shock absorber
Check the rear shock absorber. <Ref. to RS-14,
INSPECTION, Rear Shock Absorber.>
Front drive shaft
Check the front drive shaft. <Ref. to DS-34,
INSPECTION, Front Drive Shaft.>
Rear drive shaft
Check the rear drive shaft. <Ref. to DS-42,
INSPECTION, Rear Drive Shaft.>
Front hub unit bearing
Check the front hub unit bearing. <Ref. to DS-19,
INSPECTION, Front Hub Unit Bearing.>
Rear hub unit bearing
Check the rear hub unit bearing. <Ref. to DS-26,
INSPECTION, Rear Hub Unit Bearing.>
Noise from the underbody
Wheel is out of balance.
Check the wheel balance. <Ref. to WT-6,
WHEEL BALANCING, INSPECTION, Tire and
Wheel.>
Front wheel alignment
Check the front wheel alignment. <Ref. to FS-8,
INSPECTION, Wheel Alignment.>
Rear wheel alignment
Check the rear wheel alignment. <Ref. to RS-8,
INSPECTION, Wheel Alignment.>
Front strut
Check the front strut. <Ref. to FS-26, INSPEC-
TION, Front Strut.>
Rear shock absorber
Check the rear shock absorber. <Ref. to RS-14,
INSPECTION, Rear Shock Absorber.>
DS-44
General Diagnostic Table
DRIVE SHAFT SYSTEM
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