Re: Magnumatic washer pump and heater valve

Posted by d c On 2014/11/17 19:54:12

Thanks Jim. Yes I like to understand and replicate operation of all components in normal operation before dismantelins and had understood the solenoid and lower pump operation as well as the coordinator on the vac wiper through a previous thread with Howards help. The only thing in question was the Vacuum control valve to apply the vac to the coordinator. With your help and Howards and Kevs pics I see now that that valve opens to send vac thru when the "blast" of fluid is ejected from the pump and that pressure overcomes the internal spring press. This is where my issue is along with the spring corrosion. I was hoping to avoid dismanteling an orig unit but there may be no choice. A strong pump spring is a requirement and I will get the one from McVeys.