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Classic Goldwing Technical Forums
GL1100
Coolant Temp-Hot or Not? (Thread split from "Water pump/front cover" thread)
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<blockquote data-quote="scdmarx" data-source="post: 59208" data-attributes="member: 92"><p>Maybe - maybe not. Of course when you shut it off the coolant stops circulating, things will heat up pretty quickly. Cooling things down with 105+ degree ambient air passing through the radiator ain't gonna be an easy thing to do. I'd wanna see at least 160*, and absolutely no more than 220*-225* max. <span style="color: #FF0000">260*</span> is too late. One thing I learned when I lived in Phoenix for a year, you gotta seal that system up really tight. Hose clamps, o-rings, gaskets, etc. I even had to put a 22lb radiator cap on my 13lb system before the temp would stabilize and hold the coolant in. You got a new t-stat with a gob of holes drilled in it, so that's likely not a problem. What temps are you getting across the radiator? At idle in the cool morning after a cold soak, how long does it take to reach the max operating temp - and will it pretty much stay within an expected range throughout a couple fan cycles? How will it do the same way in the hot part of the day? The hottest coolant will be at the top coming from the motor. That's where you want to measure temp. And how does that compare to the bottom where it's going back into the motor. Measure this while the fan is still running. As you already know, a mechanical gauge with a sensor that actually touches the coolant will be the most accurate temp measurement, but you will only get a reading at one spot. I'd offer to measure the temp across my radiator for comparison, but I'm at sea level pulling 70 degree ambient air through the fins.</p></blockquote><p></p>
[QUOTE="scdmarx, post: 59208, member: 92"] Maybe - maybe not. Of course when you shut it off the coolant stops circulating, things will heat up pretty quickly. Cooling things down with 105+ degree ambient air passing through the radiator ain't gonna be an easy thing to do. I'd wanna see at least 160*, and absolutely no more than 220*-225* max. [color=#FF0000]260*[/color] is too late. One thing I learned when I lived in Phoenix for a year, you gotta seal that system up really tight. Hose clamps, o-rings, gaskets, etc. I even had to put a 22lb radiator cap on my 13lb system before the temp would stabilize and hold the coolant in. You got a new t-stat with a gob of holes drilled in it, so that's likely not a problem. What temps are you getting across the radiator? At idle in the cool morning after a cold soak, how long does it take to reach the max operating temp - and will it pretty much stay within an expected range throughout a couple fan cycles? How will it do the same way in the hot part of the day? The hottest coolant will be at the top coming from the motor. That's where you want to measure temp. And how does that compare to the bottom where it's going back into the motor. Measure this while the fan is still running. As you already know, a mechanical gauge with a sensor that actually touches the coolant will be the most accurate temp measurement, but you will only get a reading at one spot. I'd offer to measure the temp across my radiator for comparison, but I'm at sea level pulling 70 degree ambient air through the fins. [/QUOTE]
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Classic Goldwing Technical Forums
GL1100
Coolant Temp-Hot or Not? (Thread split from "Water pump/front cover" thread)
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