Checking the bearings
Before a dimensional check, inspect bearing for wear. Do this manually with the bearing installed.
Turn the inner ring in both directions: it should run smoothly and quiet, without jamming.
Push the inner ring outwards at different positions to check for play.
Remove any bearings which run hard or are noisy or have play.
Note
Change the bearings at each cylinder head overhaul.
Refitting the camshaft
Push the camshaft bearing (5) fully home against head wall (10) using a suitable drift.
Fit the circlip (14) in its groove.
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