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overheating

To: "MG List" <mgs@autox.team.net>
Subject: overheating
From: "oliver" <sumton@sbcglobal.net>
Date: Fri, 8 Sep 2006 22:54:45 -0500
hi, all.

i could use some help.

73 mgb roadster, radiator recored at a supposedly reputable shop, new 
thermostat, plastic fan, dealer add-on air conditioning, new sending unit, 
reads same as old sending unit, second gage hooked up reads about the same; 
system flushed by running water through it in the last few year or so, 
antifreeze/water mixture fairly new, prob 60/40 to 50/50, new heater control 
valve and radiator cap.

car runs hot, infrared says about 220 after typical 15 minute drive through 
neighborhood; needle about 3/4 on an 80 degree day.  have had trouble with 
engine running hot for last several months as i've been working through 
replacing/testing various items in cooling system.

try removing thermostat?  what else to check?  could there be a blockage 
somewhere and how to tell/find?

thanks! 




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