If a disc error occurs, you may see the following error messages.

Mainshaft Disassembly, Inspection, and Reassembly (A/T)
Inspect the thrust needle bearings and the needle bearings for galling
and rough movement.
Inspect the splines for excessive wear and damage.
Check the shaft bearing s ...
Disassembly
Compress the damper spring, then remove the nut (A) while holding the
damper shaft with a hex wrench (B). Do not compress the damper spring more
than necessary to remove the nut.
...
Rocker Arm and Shaft Disassembly/Reassembly
NOTE:
Identify each part as it is removed so that each item can be reinstalled
in its original location.
Inspect the rocker arm shaft and the rocker arms.
If reused, the ...