The sealing rings are synthetic resin with chamfered ends. Check the condition of the sealing rings, and replace them only if they are worn, distorted, or damaged.
For a better fit, squeeze sealing rings together slightly before installing them.

Apply ATF to the new sealing rings, then install them on the secondary shaft.

After installing the sealing rings, verify the following:
The rings are fully seated in the groove.
The rings are not twisted.
The chamfered ends of the rings are properly joined.
Safety of Larger Children
WARNING
Allowing a child age 12 or under to sit in
front can result in injury or death if the
passenger’s front airbag inflates.
If a larger child must ride in front, move the
vehicle seat as ...
Block and Piston Inspection
Remove the crankshaft and the pistons.
Check the piston for distortion or cracks.
Measure the piston skirt diameter (A) at a point 16 mm (0.63 in)
from ...
Transmission Side - Release Bearing Removal
Remove the transmission.
Remove the release fork boot (A) from the clutch housing (B).
Squeeze the release fork set spring (C) with pliers to remove the release
...