CARBURETTOR REPAIRS

Sun (Auckland), Volume 1, Issue 112, 2 August 1927, Page 11

CARBURETTOR REPAIRS

HINT FOR OWNER-DRIVERS TO DETECT A LEAK The float mechanism of the carburettor which keeps the spirit ready for use at a level just below the exit from the jet is a device which sometimes needs adjustment. The float, generally a thin spun-brass closed cylinder, may need adjustment. In the old days —but very seldom now—the float became punctured. How this happened was a great mystery to the average motorist. But it is generally due to some foreign matter in the sheet of metal while it was being rolled, and from which the two halves of the float were stamped or spun. This foreign matter might remain in position indefinitely, or it might by the constant jumping about of the float in the float chamber become dislodged, leaving a tiny pinhole in the float through which the spirit gradually—very gradually-leaked, thus increasing the weight of the float and causing the level in the float chamber —and in the jet to correspond—to rise so that petrol flowed out of the jet. The trouble came on gradually. The cause was suspected when the float (which should, of course, be empty), was shaken near the ear. The petrol in the float made a sound like shaken sand—a sure indication of petrol in the float. If flooding of the carburettor continues, due to too high level, anil the float is found to have petrol in it, the remedy is to remove