Subaru IMPREZA 2002 Service Manual page 132

PROPELLER SHAFT
DRIVE SHAFT SYSTEM
C: INSPECTION
NOTE:
Do not disassemble propeller shaft. Check the fol-
lowing and replace if necessary.
1) Tube surfaces for dents or cracks
2) Splines for deformation or abnormal wear
3) Joints for non-smooth operation or abnormal
noise
4) Center bearing for free play, noise or non-
smooth operation
5 ) Oil seals for abnormal wear or damage
6) Center bearing for breakage
Check the following points with propeller shaft in-
stalled in vehicle.
1. JOINTS AND CONNECTIONS
1) Remove the rear exhaust pipes and muffler.
2) Remove the heat shield cover. (If equipped)
3) Check for any looseness of yoke flange connect-
ing bolts and center bearing retaining bolts.
2. SPLINES AND BEARING LOCATIONS
1) Remove the rear exhaust pipe and muffler.
2) Remove the heat shield cover. (If equipped)
3) Turn the propeller shaft by hand to see if abnor-
mal free play exists at splines. Also move yokes to
see if the abnormal free play exists at spiders and
bearings.
3.
RUNOUT OF PROPELLER SHAFT
1) Remove the rear exhaust pipe and muffler.
2) Remove the heat shield cover. (If equipped)
3) Turn the rear wheels by hand to check for
"runout" of propeller shaft.
NOTE:
Measure runout with a dial gauge at the center of
front and rear propeller shaft tubes.
Runout:
Limit 0.6 mm (0.024 in)
(A) Propeller shaft
(B) Dial gauge
4. CENTER BEARING FREE PLAY
1) Remove the rear exhaust pipe and muffler.
2) Remove the heat shield cover. (If equipped)
3) While holding propeller shaft near center bearing
with your hand, move it up and down, and left and
right to check for any abnormal bearing free play.
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B3M1604
DS-16