Show w The most important act in preparing ing ag the automobile for the winter is cleaning and refilling the cooling tem This is 15 more than Just these words imply It requires draining and flush flush- flushing leg ing of the radiator tightening con con- connections connections connections and sealing all aU openings o be- be before tore fore renewal of the water is made The question of an freeze anti mix mix- mixture mixture ture is I an important subject by itself and will 1 b be considered fully next week Draining of the old water Isn't all That water has corroded the Interior of the entire system Scales Seales have formed in the radiator and the cyl cylinder cyl- cyl cylinder inder Jacket The rust might have eaten small holes in the radiator In addition the packing in the water pump might be toes loose and soggy The hose connections might be worn and the clamps loose The cylinder head gasket might be worn and the bolt All AU these should be tightened before new water is put Into the tho system Flushing of the radiator requires more than merely merel allowing water to torun torun torun run through while the pet-cock pet below Is open In such event only the ra radiator ra- ra radiator radiator is cleaned To clean the entire cooling system the motor should be run at nt a little faster than idling rate so 80 that the pump may force the water through the water Jacket as well Besides Use the pump puts a 0 little pressure behind the water and causes it to loosen any scale that might have accumulated in inthe inthe n the Jacket or radiator The flushing operation should con con- continue continue continue until the tho water flowing out at atthe atthe atthe the bottom is clean After the system has been thor thor- thoroughly thoroughly cleaned all connections must be tightened The packing In the water pump should bo be checked up and another turn made on the tho tightening screw The cylinder head bolts should be tightened down firmly and evenly until there Is no leakage through the gasket The hose clamps clam should be tight light ened and the hose hoe couplings should be beIn beIn beIn In perfect shape This operation is especially necessary necessary necessary 1 sary if a e. radiator glycerine or similar freeze anti is to be hied ed in the cool cool- cooling coolIng cooling ing system For For or glycerine finds the slightest opening o and seeps through it Otherwise there is 13 no way in which It can diminish In volume during the winter For this reason it is best to see that there isn't the slightest pinhole in inthe Inthe Inthe the radiator This may be tested first by running the engine a while with no water wat-cr in the system until the radiator is thoroughly dry Then some water should be poured into the radiator being careful that none is spilled out out- side The engine should be kept run run- running running running ning until the radiator Is warm If there Is a hole in the radiator it ft win will reveal itself in the form of mois mols moisture moisture ture or beads of water from within These holes should be soldered up before the freeze anti is poured in Next weeks week's article will discuss the various forms of freeze anti their advantages and disadvantages vantages |