VALVE REMOVAL AND REPAIR (Cont).
Valves (12) and seats should be
exceeds 0.080 in. (2.03 mm),
Grind valve face (15) to obtain a 45
degree angle completely around.
Measure all valve heads (1 6). If valve
(0.80 mm) thick at any point, replace
hardened. DO NOT grind valve
seats in excess of dimensions
given in step 2. Failure to follow
this caution may result in damage
replacement of cylinder head (1).
Grind valve seats to obtain a 46 degree angle. Intake valve (2) seats must be 0.035-0.060 in.
(0.889-1 .52 mm) wide. Exhaust valve (3) seats must be 0.060-0.080 in. (1 .52-2 .03 mm)
wide. If any valve seat is too wide, replace cylinder head (1).
Obtain valve (12) with next oversize stem. Using appropriate reaming tool for oversize valve
stem, ream valve guide (4).
l Install valve. (See paragraph 3-24)
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