Sticking Valves

Poverty Bay Herald, Volume LXI, Issue 18503, 15 September 1934, Page 9

Sticking Valves

VV/IfEN T , because of an accumulation ™ of gummy deposits on (lie stem, an engine valve sticks and refuses to (dose completely, the following expedient can be tried if the motorist is far removed from garage help and it is not found possible to loosen the valve satisfactorily. A correspondent in an oversea technical journal states that he was in a quandary because an inlet valve had stuck open, and although it was prised several times so as to reseat it completely, the stem was so encrusted that the valve spring was not strong enough lo close it. Had it been an exhaust; valve it would have been possible to I drive the vehicle slowly with one cylinder out dT action, but the effect with an inlet valve was that the blow-back | into the induction manifold prevented ! the engine from running. The remedy adopted was to slacken the tappet adjustment so that there was a very wide clearance, the effect being that the j valve then onlv half opened, and did not reach the top of its normal lift, ‘at which point it jammed. »uch a procedure, of course, caused painfully noisy running, but enabled the car to ; be driven nearly 100 miles without i damage or great loss of time.