Samuel, It is clear that this is more an issue of capacity to cool or a restriction somewhere. I think removing the thermostat would only affect the low end and not the high end of the temperature range. I have had no positive comments on uncle ron's radiator flush so I am leaning to home remedys. At this point I am thinking to isolate the radiator and fill it with the following in three steps, flushing in between. Alcohol, .2molar citric acid pH 2 amd .2molar E.D.T.A. pH11. I have tested these chemicals with foil and the foil held up well enough. If I mess up the radiator I figure I am headed there anyway. Just need to figure a way to plug the lower hose port. I will let the list know if this works. regards gary --- "Samuel L. Walters" <samuel.walters@verizon.net> wrote: --------------------------------- After reading Ben T's reply about rear heater removal and coolant flowwhere he mentioned a physics principle called Poiseuille's law, I didsome reading. This law delves into how the size of the pipe effectsthe volume of liquid flowing in a system. The radius of the pipe is inthe equation raised to the 4th power. I did some calculations and avery high percentage of the coolant flow goes through the big hoses tothe radiator, a small % to the heater system hoses. So, if you are getting engine temp reductions out of coolant heatdissappated by the front heater core, that tells you that something isstopping the flow either to or through the radiator and it isn't doingits job. Some other posts I read looking at that (by Dennis Haynes)state that the flow to heater system isn't controlled by thethermostat. So you problem could start at the thermostat although Iremeber reading that they usually break open, not closed. Just some thoughts on this. So I think your idea that the radiator isclogged in some way is a good starting point. -- Samuel L. WaltersAttorney at LawGIS and Demographic ConsultantMediation and Alternative Dispute Resolution2636 N. Calvert St.Baltimore, MD 21218410-235-3086 (voice/fax)410-598-6068 (cell)All incoming and outgoing email scanned by regularly updated Norton AntiVirus.
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