Re: Magnumatic washer pump and heater valve

Posted by HH56 On 2014/11/16 12:32:08

I tried the electric pump inside the jar many years ago and it was not a success at the time. Possibly with todays pumps it might be different. At the time a pump that would fit inside the larger half of plastic housing and could be hidden was not easily found. The pump I did run across that fit did not have enough output or power to keep the diaphragm (which I think is what you are calling a check valve) in the lid outlet valve assy flexed to allow the vacuum to work the co-ordinator. It did provide a small stream of water thru the nozzles but nothing like the pressure the spring can provide in one burst.

I'm not math inclined but the total volume in one shot would be the diameter of the small section times the distance the piston travels being the factors. The plunger moves fairly quickly upward to charge the water but how fast it exits is totally dependent on the nozzles and if there are any restrictions at the jets or in the hoses. I can well remember a road trip with a very unhappy father driving a 58 Mercury. We were on the road out in the middle of nowhere with the wipers going and the knob would not shut them off. It started because a teenager (me) pushed the washer button not knowing how the washer worked to turn the wipers on or what happens when the jets are clogged and water can't exit. I can tell you that the water pressure will stay on that co-ordinator control diaphragm keeping it active and supplying vacuum to the co-ordinator until hell freezes over or a mechanic that knows how it works pulls the water hose loose.

Not sure what is in the kits in the way of the waxed cardboard piece. BigKev might remember but if there is nothing included you might be able to duplicate the look with a thin piece of brown phenolic or garolite sheet. McMaster has thin sheet material in 6" squares.