VALVE STEM OILING

NZ Truth, Issue 1274, 1 May 1930, Page 14

VALVE STEM OILING

Effective Remedy For Striking Especially with some of > the newer gases the engine shoulcPbe given special treatment now and again with a view to lubricating the valve stems. THE process is an effective antidote for sticky valves. . Fortunately the newer types of carburettors are handy for this sort of treatment, especially those that are equipped with a large round air valve of the type that depresses to admit air for high speed. The owner has only to pour valve fluids into this " air valve while the engine is run fairly fast m order to put an oily vapor right into the mixture. Quite a variety of special oils are available for this work, but kerosene is still a good old standby. Another effective fluid that can .be used is the sort of penetrating- oil prepared for springs. When injecting such fluids into the air valve it is important not to pour m too much at once, otherwise the excess will not be taken up by the carburettor and will leak out to the drip pan. TTHE following are the registrations of ne\v motor-cycles for last- month (March), as supplied by the Motor TYade Association, Wellington: — B.S.A. ■54, Ariel -41, A.J.S. 40, Harley 34, Triumph 25, Indian 17, other makes 154-. total 365.