Frost and Water Cooling.

Progress, Volume II, Issue 7, 1 May 1907, Page 254

Frost and Water Cooling.

The long foreshadow of winter ought to make motorists think of things : — inter alia of the fact that water at the moment of

freezing expands. Messrs. Rolls & Co. circularised owners in the United Kingdom last winter in a manner so much to the point and so generally applicable that we hasten to reproduce their counsel for the benefit of motorists as a body, more especially of those who travel in Central Otago, or roam the Canterbury Plain, or journey in the Northern interior about the Hautapu Valley, Taihape, Waiouru, or follow the Taupo-Napier road, and skim through the Rotorua Country. 1. Be sure that before starting the engine the water system is at least sufficiently filled to cover the upper plate (i.e., fill the radiating tubes). 2. In case of the slightest chance of frost all water should be drained from the system by the cock provided. 3. In refilling the system in cold weather always use hot water. This should melt any ice formed by the freezing up of any water lodging or cementing the pump to its casting. 4. In case of the slightest likelihood of frost, take care not to turn the engine round until the hot water suggested has been put into the system. 5. The water in the cooling system should be prevented from becoming acid, either by frequently changing the water, or by addition of a small amount (say a handful) of common washing soda, otherwise the ironwork or electro metals may be dissolved or corroded away. 6. Should the pump stop through the bearings seizing or some foreign substance getting into it, the car need not be stopped, as the water can still flow through the pump, and as long as the water system is nearly full, even of boiling water, the cylinders will be sufficiently cooled for all ordinary purposes.