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07-13-2015, 08:56 AM | #41 |
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Re: An argument FOR thermostats. ..
Pardon my ignorance but what is a "wax" thermostat? I have never heard the term or, if I have, have long forgotten. (CRS Syndrome)
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07-13-2015, 09:38 AM | #42 |
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Re: An argument FOR thermostats. ..
The question of thermostats is akin to questions about what oil to use or what spark plugs to use, etc. I think that trial and error, in each case, is the answer for the individual vehicle. For example, I run Autolite 216 spark plugs, (after having problems with champion H-10's). I use 20-50 weight oil, and I don't use any thermostats. I live in Tampa, Florida where it is usually hot & humid and all my Flatheads run at between 170 to 190 degrees, depending on the time of year and the driving conditions i.e., highway or stop and go traffic (to clarify, at some of the forever stop lights, the temp will go up to 200+ degrees however, once traffic is moving, it doesn't take long before the temp is back to normal driving range). I do have 'Skips' water pumps on all my Flatheads and his coils on several, along with distributors rebuilt by Skip and 'Bubba'. The bottom line is; you need to test different scenarios in your vehicles, under the kind of driving conditions that you would expect to encounter 90% of the time, before you come up with the best combination for your Flatheads.
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07-13-2015, 09:43 AM | #43 |
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Re: An argument FOR thermostats. ..
Wow Vic........WELL SAID! DD
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07-13-2015, 12:12 PM | #44 | |
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Re: An argument FOR thermostats. ..
Quote:
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07-13-2015, 12:37 PM | #45 |
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Re: An argument FOR thermostats. ..
Pete
I'd say you have everything just right: A clean block and a clean good radiator. As you mention, there really should not be a big temperature spread if everything is right. I think many of us, myself included, have failed in one way or another to be real sure that the block itself is as clean as it could be. |
07-13-2015, 12:53 PM | #46 | |
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Re: An argument FOR thermostats. ..
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07-13-2015, 01:22 PM | #47 |
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Re: An argument FOR thermostats. ..
I've posted this before, it is a record of a conversation with a Stant thermostat engineer about the operating characteristics of thermostats.
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07-13-2015, 04:09 PM | #48 |
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Re: An argument FOR thermostats. ..
Good read, so I guess it all boils down to( pun intended) each indvidual engine and how/ where it is used and a dozen other variables.
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07-13-2015, 04:41 PM | #49 |
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Re: An argument FOR thermostats. ..
prpmmp, the thermostat does not control cooling, all it does is stop the water from circulating to the radiator till the water in the engine reaches the designed thermo temp, at that temp the water is allowed to flow to the radiator, most engines will run hotter when idling because of reduced water and air flow thru the rad, excessive heat build up can be caused by a bad rad, water pump, and a fan that does not pull enough air thru the rad, when at speed more air is being forced thru the rad, hench the engine runs cooler, if your car runs at lets say 200 degrees, the thermostat has nothing to do with that, it opens at 180 degrees and lets water flow, the cooling is left to the water pump, radiator, fan and a moving car, basically a thermostat is an idiot, it only knows how to do one thing, open at the temp it was designed for
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07-13-2015, 04:44 PM | #50 |
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Re: An argument FOR thermostats. ..
joe imbler, the wax thermostat is referring to the medium used to make the thermo work, a wax thermo stat is one using wax to expand at temp and open the thermostat
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07-13-2015, 05:09 PM | #51 | |
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Re: An argument FOR thermostats. ..
Quote:
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07-13-2015, 05:20 PM | #52 |
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Re: An argument FOR thermostats. ..
Just my take .Ford offered several types of Radiators some with a extra row of tubes for hot climates . Henry didn't like the spaghetti look of the hot manafolding above the engine on the v8s he had in the lab while developing his flathead such as the Cadillac .Since he was in a cold climate Henry decided the exhaust exiting through the block would give him a fast warm up plus a better looking engine , In my experiments having thermostats in a warm climate is not as critical on a flat head because of the fast warm up ,adding one can have a negative affect depending on other factors that's already been pointed out .To run a thermostat you should have Ideally the large Radiator offered by Ford for a hot climate ,To improve a marginal cooling system a shroud can be added and hi flow pumps that will also help ,a blocked Radiator will cause a low pressure zone in the block a hi flow pump will over come this to some degree .Also the sealing off of the top tank with a low pressure cap forces water through ,this is a different scenario to running high pressure so the water doesn't boil out .To run a single thermostat you would need a much higher flow pump like modern cars have .I think this is were the problem is a high flow pump will possibly over come the restricted thermostat and give you the results your looking for, but its what works for you .Ted
Quote Just curious, I do not currently have a running v-8 flathead , but has anyone ever tried a comparison test with two different style thermostats, one in each head, take temp. readings with infa red heat gun, before and after thermostats, out of radiator, various points on heads? Swap sides with thermostats and compare. Swapping sides would cancel other variables, internal heat transfer, water pump differences, ambient temps, air flow, etc. Might give interesting results. Quote Ahh...no, with a pressure cap the temperature can go higher before it reaches it's boiling point, once water reaches it's boiling point the STEAM pressure overrides the cap.... or the radiator fails. You have to ask yourself why does EVERY internal combustion engine manufacturer in the world put a thermostat in? Anyone who thinks an engine runs better without one is kidding themselves. vvv Last edited by FlatheadTed; 07-13-2015 at 06:17 PM. |
07-13-2015, 06:40 PM | #53 | |
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Re: An argument FOR thermostats. ..
Quote:
This one compares the NAPA thermostat referred to with no thermostats: http://www.fordbarn.com/forum/showthread.php?t=113979 This one compares what I think is the highest flow thermostat for the 59A engine (the same NAPA stat referred to) with another thermostat that claims to be high flow and has been heavily promoted as such: http://www.fordbarn.com/forum/showthread.php?t=143576
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07-13-2015, 07:38 PM | #54 |
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Re: An argument FOR thermostats. ..
ok a stupid question on a 1941 59ab how and where do you install thermostats?? will they stay in the hose buy themselves??
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07-13-2015, 07:51 PM | #55 |
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Re: An argument FOR thermostats. ..
See post #28 for one method. And NO, they will not stay in the hose by themselves.
Edit: corrected per Henry Last edited by JSeery; 07-13-2015 at 09:42 PM. |
07-13-2015, 08:17 PM | #56 | |
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Re: An argument FOR thermostats. ..
Quote:
Actually, it's post # 28. Use a single strand of stranded wire. Only one hose clamp necessary placed at the top of the neck to be sure and grab the wires. Cheap, easy, effective, and doesn't change the stock appearance of the engine.
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07-13-2015, 08:17 PM | #57 |
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Re: An argument FOR thermostats. ..
Hey!! This is what I did.I have weiand aluminum heads that have a 2 inch outlet.I had to grind out a little of the inside for the thermostat to set inside,then I had to file the top flat where the stat sits.My tubes that go to the radiator are 1 3/4 so I got a hose reducer from NAPA for the 2 inch to 1 3/4. I then put a little silicone on the top of the outlet,put the stat on slide the 2 inch hose on then put a little silicone on the top of the stat and slide the reducer over the stat and inside the 2 inch hose. Then when you put the tube inside the reducer you put a hose clamp on the bottom of the 2 inch around the outlet and another around at the tube, that holds the stat tight against the outlet and no coolent can get past until the stat opens. Hope you can understand my gibberish!! see avator Pete
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