The 1922 Olympia Show.
WOOLER. (Stand 18.)
Overhead Camshaft Flat Twin.
2¾ H.P. Model.
60.5x60 mm. (345 c.c); flat twin cyl. four-stroke; overhead valves; mechanical lubrication; B. and B. carb.; chain-driven mag.; 3-sp. gear; clutch, no kick-starter: gear and chain drive; 26x2¼in. tyres. Price £80.
Dederich Wooler Eng. Co,, Ltd., Alperton, London.
Right from their inception, Wooler motor cycles have always tended to be unconventional, and many of their original features for example, the simple system of front and rear suspension are still retained on this, the latest model. The engine has been re-designed to give the greatest efficiency, and the valves, placed radially in the cylinder heads, are operated through rockers by a camshaft running parallel with the cylinders. A simple adjustment for taking up wear is provided. The method at first adopted of holding down the detachable head by an interrupted thread has been discarded, ordinary bolts now being used. Embodying a sump for the mechanical oil pump, the crank case also holds the three-speed gear. To adjust the driving chain the whole engine unit may be slid bodily forwards on its duplex carrying members. Internal expanding brakes front and rear, suitably-placed footrests, and well dropped handle-bars make the specification of this model workmanlike. It also gives promise of considerable speed.
3½ H.P. Model.
66x73 mm. (499 c.c); flat twin cyl. four-stroke; overhead valves; mechanical lubrication; B. and B. carb.; chain-driven mag.; 3-sp. gear; clutch and kick-starter; gear and chain drive; 26x2½in. tyres. Price: Solo, £94; with Sidecar, £109.
Although an entirely new model not previously seen or illustrated, the 499 c.c. Wooler follows the lines of the 345 c.c. model so closely that little additional description is required. Intended for solo or passenger work, it is shown with a very neat, low sidecar, finished to match the tank. Also shown are chain-driven three-speed and belt-driven variably-geared examples of the touring 345 c.c. model, little altered from last year. Solo the prices are £75 10s. and £65 respectively, or with suitable side-cars £95 10s. and £77 10s.
A 1,000 c.c. Wooler engine embodying the new camshaft is also shown, but apparently it has been designed for use in a light car.