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Rotational Valve Assembly

7th December 1962, Page 61
7th December 1962
Page 61
Page 61, 7th December 1962 — Rotational Valve Assembly
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A NEW method of holding valve springs on to their stems is disclosed in patent No. 903,166.. (Ford Motor Co. Ltd.. 88 Regent Street', London, W.I.) The unit is simple to make and assemble and permits rotation of the valve.

The drawing shows an overhead valve in which the stem is provided with a tui.ned groove (Ii. Into this fits the col

lar (2). The collar has a keyhole" bore so that it can be slipped over the stem and then slid sideways into the groove.

Ahard cap (3) is placed over the end

to receive the thrust. this is an easy fit on the stem and the valve is thus relieved of the tendency for the spring to restrain rotation during the time it is lifted off its seating.