Camshaft chain wear
Remove the cylinder head cover, hold the chain taut
by rotating the crankshaft slightly, and measure a 20-
If the chain has lengthened beyond the
service limit, replace it with a new one.
Camshaft Chain Measurement
Camshaft Chain 2O-link length
Chain guide wear
Remove the chain guides, and inspect them visually.
Replace a guide if the rubber or any other portion is
Measure the depth of the grooves where the chain
Replace a guide if the wear exceeds the
Chain Guide Rubber Wear
Camshaft Chain Guide Wear
Chain tensionsr Inspection
Remove the camshaft chain tensioner. Visually in-
spect the push rod, the sleeve in thetensioner body and
the lock ball. If there is any damage or dent, replace the
part with a new one.
Measure the spring free length. Replace the spring if
the free length exceeds the service limit.
Chain Tensioner Spring Free length
CYLINDER HEAD, VALVES
Cleaning and inspection
Remove the cylinder head (Pg. 69) and valves (Pg.
70). Scrape out any carbon, and wash the head with a
high flash-point solvent.
Cylinder head warp
Lay a straightedge across the lower surface of the
head at several different points, and measure warp by
inserting a thickness gauge between the straightedge
and the head. If warp exceeds the service limit, repair