Austin Overhead-camshaft Valve Gear
10th August 1962, Page 78
10th August 1962
Page 78
Page 78, 10th August 1962
— Austin Overhead-camshaft Valve Gear
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TO REDUCE the overall height of an overhead-camshaft engine and eliminate tappets are the aims ofan arrangement shown in patent No. 890.929. The layout is of the type incorporating rockers. (The Austin Motor Co., Ltd., Longbridgc, Birmingham.)
Referring to the drawing, the tail of each rocker (1) is tapped to receive a tubular screw (2). This forms the adjustment member: it can be turned by a screwdriver and locked by a thin nut (3) in the manner conventional with pushrodoperated valve gear.
Inside the hollow screw is a hardened abutment pin (4) to transmit the thrust. This is made an easy fit in the bore that it can revolve in use and so prey uneven wear.
The drawing shows a valve-seat insl suggesting light alloy as the head mater