A balmy 101 * F here 45 miles NE of downtown St Paul MN - SCF WI . Seems like you could cut a cube out of the air today . Got 1 1/2 " of rain monday night . Dewpoint - see above .Took the 33 [ bone stock other than 34 intake setup ] on some errands this afternoon to see how it was feeling . Heat gauge { actually a thermometer } ran slightly above center . Normal is just below center . No dripping or drooling including some stoplight waiting time & some traffic delays . Gauge went up to a little below the upper line during the longest delay . Went right back down when I got going again . No stats & the stock 4 blade fan . Started right up after every stop & didn't miss a beat . Lower grade NON-OXY gas of course . I would assume flatjack is using it also . Most every station around here has it . Not trying to stoke the debate- just pointing out that if you can get it it works in HOT weather . Should note this is the car that had vinegar poisioning last summer . Used gennie 33-34 waterpumps , block & radiator are CLEAN & it has 50-50 old fashioned green prestone in it . Oil pressure was low but that's nothing new with this[33] motor .[/QUOTE
David your engine is operating exactly like it should. Your detailed discription of how it performed is exactly how these engines cool in hot conditions. There are 3 or 4 differant Ford impeller designs for 32 to 36 pumps. You must have the truck type impellers that provide more more coolant flow than the passenger car type. Your type of post is what helps others determine that their problem can be easly solved. If you don't have a pressure cap or Skips 3 lb pressure valve with radiator cap with a good tight seal you will lose water out the over flow and run with a lower level of coolant. The system is 22 quarts and with the system full you will find cooling a little better. G.M.