The outer diameter of the valve seats is as follows.
Inlet valve seat outer diameter = 29.600 ÷ 29.611
Exhaust valve seat outer diam-
eter
= 27.600 ÷ 27.611
Position the lower cylinder head in the vice using the tool (sup-
port).
Fit the valves in the seats, then support them using the wooden
stand and secure it using suitable bolts.
Place the valve guide oil seal (1 a) in position using the tool (1b
extractor/tting tool).
Grind the valve seats to the recommended size.
Valve seat band
Angle in contact with valve = 45° +/- 1’
Grind the valve seats using a suitable tool.
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