195.6 OHV cooling system...

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   Tom, 
We have a overflow tank from a ford pickup truck(mid 80s') it has a windsheild washer tank with the overflow.  The pump for the windsheild washer is in the tank. We hooked a momentary contact switch to the original switch for the windsheild washer.  Fully electric now.
We watched the overflow tank after the high heat condition and watched the level go down on the trip.  With a refill to the mark on the tank for reference it was fairly constant the rest of the trip.

Nick

Edited by nickleone - Aug/07/2012 at 3:11pm

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nickleone Members Profile Send Private Message Find Members Posts Add to Buddy List AMC Apprentice Joined: Oct/04/2008 Location: westminster co Status: Offline Points: 157	Post Options Post Reply Quote nickleone Report Post Thanks(0) Quote Reply Posted: Aug/07/2012 at 3:09pm
	Tom, We have a overflow tank from a ford pickup truck(mid 80s') it has a windsheild washer tank with the overflow. The pump for the windsheild washer is in the tank. We hooked a momentary contact switch to the original switch for the windsheild washer. Fully electric now. We watched the overflow tank after the high heat condition and watched the level go down on the trip. With a refill to the mark on the tank for reference it was fairly constant the rest of the trip. Nick Edited by nickleone - Aug/07/2012 at 3:11pm
	nick

tomj Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List AMC Addicted Joined: Jan/27/2010 Location: los angeles Status: Offline Points: 591	Post Options Post Reply Quote tomj Report Post Thanks(0) Quote Reply Posted: Aug/23/2012 at 2:41am
	I've been back from this trip a week now, and finally found the upper limit! It ran normal temp the entire trip until the return leg through Las Vegas, Wednesday afternoon (5pm). It was 112 degrees ambient! The system stopped regulating right as outside air crested 106 degrees F. From there, it appears that every degree increase air equalled a degree increase in coolant temp, or pretty close. My temp gauge is 190 center-up. This pic is what it looked like 99.99% of the time: When the temps increased, it looked like these two... and then... I pointed the IR thermo all around the car, everything low and out of the sun (eg. the lower dash) was all the same temp, so I just pressed the button for the picture as-shown. Around this time the asphalt was 120. CRAP IT WAS HOT. I was going 65 - 70 mph. If i slowed down to 60, it didn't drop much, but holding 70 it didn't go up. Just reached the ability of the radiator to dump heat. Since this was on and off during 3 hrs of so driving, once so far since 2007, nothing needs doing. Not even 0.1% of the time. This persisted til I got down to Baker CA. With the electric fans it cooled down to normal in the parking lot of the Mad Greeks (don't eat there, it sucks) (it always sucks, why do I go there?). Didn't lose any juice, though the overflow was fuller. After I got home, the next morning it had purged the air and sucked the juice back in, the overflow was still half full more or less as when I left. So the lesson for me is, the stock 195.6 OHV cooling system in good condition -- with electric fans -- is more than adequate!
	1963 American 440 hardtop 195.6 OHV, modded T-96 Twin Stick, 3.78 axle