(d) Check the surface of the valve stem tip for wear.
If the valve stem tip is worn, regrind it with grinder or
replace the valve if necessary.
NOTICE: Do not grind off more than minimum overall
length.
Minimum overall length:
Intake 113.0 mm (4.449 in.)
Exhaust 111.9 mm (4.406 in.)
(f) Gradually heat the cylinder head to approx. 90C
(194 F).
(g) Using SST a and hammer, drive in a new valve guide
bushing unit the snap ring makes contact with the
cylinder head.
SST 09201–6001 1
11. INSPECT AND GRIND VALVES
(a) Grind the valve only enough to remove pits and
carbon.
(b) Check that valve is ground to the correct valve face
angle.
Valve face angle: 44.5
(c) Check the valve head margin thickness.
Standard margin thickness: 1.0 mm (0.039 in.)
Minimum margin thickness: 0.6 mm (0.024 in.)
If the valve head margin thickness is less than mini–
mum, replace the valve.
(h) Using a sharp 8 mm (0.31 mm) reamer, ream the valve
guide bushing to obtain standard specified clearance
(See page EG1–23) between the valve guide bushing
and new valve.
–ENGINE ENGINE MECHANICAL
EG1–25
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