Inspect the belt for cracks or damage. If the belt is cracked or damaged, replace it.
Check that the position of the auto-tensioner indicator (A) is within the standard range (B) as shown. If it is out of the standard range, replace the drive belt.

Connecting Rod and Crankshaft End Play Inspection
Remove the oil pump.
Measure the connecting rod end play with a feeler gauge (A) between the
connecting rod (B) and the crankshaft (C).
Connecting Rod End Play
...
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 ...
Valve Stem-to-Guide Clearance Inspection
Remove the valves.
Subtract the O.D. of the valve stem, measured with a micrometer, from the
I.D. of the valve guide, measured with an inside micrometer or ball gauge.
Take t ...