Just got my hoses from http://www.bus-boys.com/index.htm and gonna put them in. Pretty easy job, but wanted to bleed system due to loss while removing the cooler.  Wanted to clarify: 15% angle(front up) and warm up w/heater. Bleed front till no air and top off in rear?
  Any idea(no torque wrench, my kid borrowed) how tight the retainer nut goes on the cooler?It's about 27mm or 30mm
  Thnaks, Michael
  91GL'Gringo'.

Thanks, Michael Sullivan