Subaru LEGACY 2006 Manual page 3952

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DRIVE SHAFT SYSTEM
C: INSPECTION
NOTE:
Do not disassemble propeller shaft. Check the fol-
lowing and replace if necessary.
• Tube surface for dents of cracks
• Splines for deformation or abnormal wear
• Unsmooth joint operation or abnormal noise
• Center bearing for free play, noise or non-
smooth operation.
• Oil seals for abnormal wear or damage
• Damaged center bearing
Check the following points with propeller shaft in-
stalled in vehicle.
1. JOINTS AND CONNECTIONS
1) Remove the center exhaust pipe.
2) Remove the heat shield cover.
3) Check for any looseness of the yoke flange
mounting bolts which connect to the rear differen-
tial and center bearing bracket mounting bolts.
2. SPLINES AND BEARING
1) Remove the center exhaust pipe.
2) Remove the rear exhaust pipe and muffler.
3) Remove the heat shield cover.
4) Turn the propeller shaft by hand to see if abnor-
mal free play exists at splines. Also move yokes to
see if abnormal free play exists at spiders and
bearings.
Propeller Shaft
3. RUNOUT OF PROPELLER SHAFT
1) Remove the center exhaust pipe.
2) Remove the rear exhaust pipe and muffler.
3) Remove the heat shield cover.
4) Set the dial gauge with its indicator stem at the
center of the propeller shaft tube.
5) Turn the propeller shaft slowly by hands to check
for runout of the propeller shaft.
Runout:
Service limit 0.6 mm (0.024 in)
(A) Propeller shaft
(B) Dial gauge
4. CENTER BEARING FREE PLAY
1) Remove the front and center exhaust pipes.
2) Remove the rear exhaust pipe and muffler.
3) Remove the heat shield cover.
4) Move the propeller shaft near the center bearing
up, down, left, right by hand, to check for any ab-
normal free play of the bearings.
DS-00035
DS-12
(A)
(B)
DS-00036
DS-00037