If the cams are worn down past the service limit, replace the camshaft.
Cam Height Standard:
Exhaust 35.043 
35.157 mm
(1.3796 
1.3841 in.)
Intake 38.243 
38.357 mm
(1.5056 
1.5101 in.)
Service Limit:
Exhaust 34.94 mm (1.376 in.)
Intake 38.14 mm (1.502 in.)
Camshaft Runout Inspection
Camshaft Chain RemovalCamshaft, Camshaft Cap Wear Inspection
Remove the camshaft caps (see Camshaft Removal).
Cut the strips of plastigage (press gauge) to journal width.
Place a strip on each journal parallel to the camshaft installed
in the correct position.
Tighten the camshaft cap bolts and upper camshaft chain
guide bolts to the specified ...
Cylinder Head Cover Installation
Replace the cylinder head cover gasket [A] with a new
one
Using a high flash-point solvent, clean off any oil or dirt
that may be on the silicone sealant coating area. Dry
them with a clean cloth.
Apply silicone sealant [B] to the cylinder head as shown
in the figure.
Sealant - Li ...
Tire Tread Wear Inspection
As the tire tread wears down, the tire becomes more susceptible
to puncture and failure. An accepted estimate is
that 90% of all tire failures occur during the last 10% of tread
life (90% worn). So it is false economy and unsafe to use
the tires until they are bald.
Measure the tread depth a ...