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as some of you probably are aware i have been watching my engine temps. never have had a Healey before and i was a little concerned about the temp it was runnig in mid-60's weather. So i was waiting for a hot day to see what affect it would have on the engine temp. Today was that day.
my engine had been running pretty consistently lately in that 185-190 range and going up maybe 5 degrees or so at a light. well let's say i have seen it go up 10 if i hit a few lights. the thing i see with this car is that it does not easily recover just because you start moving.
i waited until after lunch so the temp would be up there. when it got to 87*, i set out on a run. i did what i would call a mixed run of highway and stops. 15 miles or so with about 6 or 7 stops. Car started out going up to just over 190 and sat there. about my third stop, i had to wait a little and it went up to i will say 200. ran some highway miles after that but the temp never came back down.
about a mile or so from home, i rememdered a suggestion from dad years ago with another car. i flipped the heat valve over to max. the temp on the car dropped 10* in about half a minute. ok, figured it got some cooler fluid in it, let's wait. but the rest of the way home, it never went back up over 190.
i let the car sit for about 1/2 hour while i made some notes and then went back out. when i fired it back up the temp was 170. i drove the same route and stops as the morning. i was probably 2/3's the way thru the route before the gauge hit 190. in fact i am not sure it actually reached the mark. it stayed just under it. i got caught behind a school bus on the last leg or so and had to wait thru a couple stops. it did climb to 195 then but as soon as i got around the bus, it went back to just under 190.
makes sense. that heater core is decent size and probably adds another 15% to the radiator. not to mention how much more coolant is circulating. when i put my bulkhead back together, i put 1/4" foam in those bulkhead vents so air could not just blow thru them when they were closed. (thinking of cold weather then) So any air escaping the heat system was probably thru the defroster vents. No big deal there. as far as in the car, i had the cool air vent open and i did not notice any difference in temps.
probably the best thing i have done to help my cooling system yet.... and it took so little work.
my engine had been running pretty consistently lately in that 185-190 range and going up maybe 5 degrees or so at a light. well let's say i have seen it go up 10 if i hit a few lights. the thing i see with this car is that it does not easily recover just because you start moving.
i waited until after lunch so the temp would be up there. when it got to 87*, i set out on a run. i did what i would call a mixed run of highway and stops. 15 miles or so with about 6 or 7 stops. Car started out going up to just over 190 and sat there. about my third stop, i had to wait a little and it went up to i will say 200. ran some highway miles after that but the temp never came back down.
about a mile or so from home, i rememdered a suggestion from dad years ago with another car. i flipped the heat valve over to max. the temp on the car dropped 10* in about half a minute. ok, figured it got some cooler fluid in it, let's wait. but the rest of the way home, it never went back up over 190.
i let the car sit for about 1/2 hour while i made some notes and then went back out. when i fired it back up the temp was 170. i drove the same route and stops as the morning. i was probably 2/3's the way thru the route before the gauge hit 190. in fact i am not sure it actually reached the mark. it stayed just under it. i got caught behind a school bus on the last leg or so and had to wait thru a couple stops. it did climb to 195 then but as soon as i got around the bus, it went back to just under 190.
makes sense. that heater core is decent size and probably adds another 15% to the radiator. not to mention how much more coolant is circulating. when i put my bulkhead back together, i put 1/4" foam in those bulkhead vents so air could not just blow thru them when they were closed. (thinking of cold weather then) So any air escaping the heat system was probably thru the defroster vents. No big deal there. as far as in the car, i had the cool air vent open and i did not notice any difference in temps.
probably the best thing i have done to help my cooling system yet.... and it took so little work.
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