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The cylinder blocks have angled surface on sides. The starting lines of the angled surface was marked.
シリンダーブロック側面の傾斜部分の始まるところをケガいておく
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Cylinder block was fixed on mill vice with angle jigs.
角度治具をかませてシリンダーブロックをフライスのバイスに固定。
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Side view of the setting.
横から見るとこんな感じ。
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Angled surface of valve surface was milled.
弁座面を斜めに削っていく。
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When the blue tinted part became thin, move down Z-axis very slightly. When the blue tinting became invisible the milling finished.
青染め部分がこのくらいになったら慎重に少しづつ切り込み、青染めが見えなくなたら切削完了。
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Angle cutting of valve surface finished.
弁座斜め切削完了。
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Also the side of the block was angled.
側面の斜め切削。
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Both top and side of the blocks angled.
斜め切削完了。
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The bottom part of the block was rounded with this setting.
このようなセッティングでシリンダーブロック下端を丸める。
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Rounded blocks.
丸め完了したシリンダーブロック。
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Blocks were wet-lapped with #240 and #600 sand paper.
240番、600番のサンドペーパーで水研ぎし切削痕を消す。
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Finished cylinder blocks.
これでシリンダーブロックは完成。
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