EmTee Posted September 27, 2023 Share Posted September 27, 2023 If you are concerned about the radiator, disconnect the lower hose and plug the outlet. Fill the radiator with water, then quickly remove the plug from the lower hose (or radiator nipple) and measure the time it takes for the radiator to empty. Do this a few times and average the results. If the core is open and not blocked it should only take 10 ~ 15 seconds to empty and you should see a strong stream of water exiting the radiator. Long time and/or weak flow from the lower hose suggests there is a blockage. 1 Link to comment Share on other sites More sharing options...
cquisuila Posted September 27, 2023 Author Share Posted September 27, 2023 3 minutes ago, EmTee said: If you are concerned about the radiator, disconnect the lower hose and plug the outlet. Fill the radiator with water, then quickly remove the plug from the lower hose (or radiator nipple) and measure the time it takes for the radiator to empty. Do this a few times and average the results. If the core is open and not blocked it should only take 10 ~ 15 seconds to empty and you should see a strong stream of water exiting the radiator. Long time and/or weak flow from the lower hose suggests there is a blockage. ok* I will redo this work but counting the time from now on and therefore controlling the flow🙂 Link to comment Share on other sites More sharing options...
EmTee Posted September 27, 2023 Share Posted September 27, 2023 Pay attention to the size of the stream of water exiting the radiator. It should start out at the size of the opening and then decrease as the radiator empties. Here's a video of the test on the radiator from my 1938 Buick ("Before & After"): https://www.caparadiator.com/video Link to comment Share on other sites More sharing options...
cquisuila Posted September 27, 2023 Author Share Posted September 27, 2023 (edited) 3 hours ago, EmTee said: Pay attention to the size of the stream of water exiting the radiator. It should start out at the size of the opening and then decrease as the radiator empties. Here's a video of the test on the radiator from my 1938 Buick ("Before & After"): https://www.caparadiator.com/video It is very good ! thank you for this astuce !!! i will make this test to verify good or bad efficient radiator ! before without explosion and after with the explosion !!! Edited September 27, 2023 by cquisuila (see edit history) Link to comment Share on other sites More sharing options...
EmTee Posted September 27, 2023 Share Posted September 27, 2023 Can you see the videos on this site? https://www.caparadiator.com/video Link to comment Share on other sites More sharing options...
Jim Cannon Posted September 27, 2023 Share Posted September 27, 2023 1 hour ago, EmTee said: Can you see the videos on this site? https://www.caparadiator.com/video They only play for about 3 seconds and then they stop, so you cannot see what you are trying to demonstrate with them. Link to comment Share on other sites More sharing options...
cquisuila Posted September 27, 2023 Author Share Posted September 27, 2023 1 hour ago, Jim Cannon said: They only play for about 3 seconds and then they stop, so you cannot see what you are trying to demonstrate with them. it is efficient it was a problem in my enterprise🤢 Link to comment Share on other sites More sharing options...
RivNut Posted September 27, 2023 Share Posted September 27, 2023 Make sure that the radiator cap is not in place. A sealed radiator cap would cause a vacuum in the radiator and restrict the flow you’re watching. Link to comment Share on other sites More sharing options...
cquisuila Posted September 29, 2023 Author Share Posted September 29, 2023 On 9/26/2023 at 11:10 PM, rodneybeauchamp said: Not sure on these engines but my overheating on a Skylark was caused by an air lock after I drained and refilled the system. Perhaps there is an air lock and not enough fluid in the system. Ended up using a funnel to help burp the system. Just my two bobs worth Rodney 😀😀😀😀😀😀 that's too much !!!🤣 Link to comment Share on other sites More sharing options...
60FlatTop Posted September 29, 2023 Share Posted September 29, 2023 These infrared thermometers are really handy. You can read the differentials across the radiator or engine, the exact temperature at the thermostat housing, exhaust manifold variations, all kinds of stuff. https://www.amazon.com/KIZEN-Infrared-Thermometer-Gun-Humans/dp/B07VSHR9M6?th=1 1 Link to comment Share on other sites More sharing options...
XframeFX Posted September 30, 2023 Share Posted September 30, 2023 (edited) 13 hours ago, 60FlatTop said: These infrared thermometers are really handy. OMG, they are so inexpensive, I keep the one with a broken target beam in my Riv's glovebox. Not so much for overheating but for ongoing rough idle troubleshooting. A youtube channel has the dyno test cell operator squirting water on each primary header tube. Huh? A better tool here in 2023 would be sequential testing with an infrared thermometer. Edited September 30, 2023 by XframeFX (see edit history) Link to comment Share on other sites More sharing options...
cquisuila Posted September 30, 2023 Author Share Posted September 30, 2023 (edited) I just bought Edited October 6, 2023 by cquisuila (see edit history) 1 1 Link to comment Share on other sites More sharing options...
EmTee Posted September 30, 2023 Share Posted September 30, 2023 I use mine to check for equal brake adjustment at each wheel. When adjusted correctly the temps for wheels on the same axle are within ~5° F. 3 Link to comment Share on other sites More sharing options...
cquisuila Posted October 25, 2023 Author Share Posted October 25, 2023 remark : I hear a sort of gurgling sound... GLOUGLOU.... every time I turn on the heating ! prooth of air in the circuit ???🤒 1 Link to comment Share on other sites More sharing options...
EmTee Posted October 26, 2023 Share Posted October 26, 2023 (edited) 9 hours ago, cquisuila said: prooth of air in the circuit ???🤒 Yes. Have you pressure-tested the cooling system? That should identify leaks where air can enter. Or, add some florescent dye to the coolant and use a blacklight to identify any leaks. I would pay particular attention to the heater control valve. Edited October 26, 2023 by EmTee (see edit history) Link to comment Share on other sites More sharing options...
cquisuila Posted October 26, 2023 Author Share Posted October 26, 2023 (edited) 7 hours ago, EmTee said: Yes. Have you pressure-tested the cooling system? That should identify leaks where air can enter. Or, add some florescent dye to the coolant and use a blacklight to identify any leaks. I would pay particular attention to the heater control valve. Not test for pressure If it is this water valve on the picture it isn't on my car... i just added a plastic valve but I had the impression that it was causing a problem in the cooling circuit so I removed it Information i have changed the evaporator on a/c Edited October 26, 2023 by cquisuila (see edit history) Link to comment Share on other sites More sharing options...
cquisuila Posted October 26, 2023 Author Share Posted October 26, 2023 8 hours ago, EmTee said: Yes. Have you pressure-tested the cooling system? That should identify leaks where air can enter. Or, add some florescent dye to the coolant and use a blacklight to identify any leaks. I would pay particular attention to the heater control valve. NO coolant leaks on motor Link to comment Share on other sites More sharing options...
cquisuila Posted October 26, 2023 Author Share Posted October 26, 2023 Link to comment Share on other sites More sharing options...
XframeFX Posted October 26, 2023 Share Posted October 26, 2023 ? ? ? ? That image is for a 1963 HVAC Control, not a 1966 unit. Link to comment Share on other sites More sharing options...
RivNut Posted October 26, 2023 Share Posted October 26, 2023 1 Link to comment Share on other sites More sharing options...
cquisuila Posted October 26, 2023 Author Share Posted October 26, 2023 2 hours ago, XframeFX said: ? ? ? ? That image is for a 1963 HVAC Control, not a 1966 unit. it is an example what form for my riviera 1966 ? PLEASE Link to comment Share on other sites More sharing options...
EmTee Posted October 27, 2023 Share Posted October 27, 2023 1966 Riviera heater control valve: https://www.rockauto.com/en/moreinfo.php?pk=815464&cc=1319183&pt=6860&jsn=870&_nck=Ekt6BqBF1pwlXdx0gYlm1esw98pF26vehMm%2FGG3C%2Fl2QOXSJubi7WSpUmUSdg3OxWOs2f5z9h422EONy36O0PjCuaadDqI1r86y%2FvJ1lBqxeBNhI9mMX8H1x0fHFzmF%2Bemc5SoFjBM4YwvQ2tLgA0bBeGftY6hwHyLHQiRSVBbt6CTUiyOsVm6ULZDb3KHE%2FdcHxolESy83EuTcu3RPj%2BI%2FCM0faq7MnmxiP6Bf51ULhgFvMgzFxqaVw%2FIXI1YwW4H5Ltpx9IvC%2BIQHSmkVc0V%2FXBRIEOWbal9uAjwxTDzWNb4pF6UxLEWHprHXaykb9tQo%2BkTthu3ou8lKoYDfsHU6n%2Fk0mpdrbt4NuYn1KFbgwGRtr0ZWMtyOG%2BQURUfem Link to comment Share on other sites More sharing options...
cquisuila Posted October 27, 2023 Author Share Posted October 27, 2023 It is good It is the part that i haven't. I added but i removed because i thought that it was the problem Link to comment Share on other sites More sharing options...
cquisuila Posted October 27, 2023 Author Share Posted October 27, 2023 Link to comment Share on other sites More sharing options...
cquisuila Posted October 27, 2023 Author Share Posted October 27, 2023 FOR GLOUGLOU solution ? i have to pass water in pression in the hoses to heat core (entry hose and return hose) Link to comment Share on other sites More sharing options...
EmTee Posted October 27, 2023 Share Posted October 27, 2023 Are you sure the heater core is not leaking? Is the carpet in the passenger side foot well dry? Link to comment Share on other sites More sharing options...
cquisuila Posted October 27, 2023 Author Share Posted October 27, 2023 (edited) 16 minutes ago, EmTee said: Are you sure the heater core is not leaking? Is the carpet in the passenger side foot well dry? i haven't carpet for this moment the ground is again bare metal ! and i don't observe leaking i will verify again the level in coolant radiator is normal >>>> 🙄And pass water in pression in the hoses to heat core (entry hose and return hose) is a good job ?? Edited October 27, 2023 by cquisuila (see edit history) 1 Link to comment Share on other sites More sharing options...
cquisuila Posted January 15 Author Share Posted January 15 for information the job is not yet done it is winter in France😀 Link to comment Share on other sites More sharing options...
RivNut Posted January 15 Share Posted January 15 (edited) 7 hours ago, cquisuila said: for information the job is not yet done it is winter in France😀 Should not be a problem for you. I just checked the temperatures in you community. 55 degrees F there. Below 0 degrees F here. 55 F = 13 C. 😎. 0 F = -17 C. 🥶 Get to work, it’s a lovely day in Mount-de-Marsan . 😁 Edited January 15 by RivNut (see edit history) 1 Link to comment Share on other sites More sharing options...
cquisuila Posted January 16 Author Share Posted January 16 (edited) 15 hours ago, RivNut said: Should not be a problem for you. I just checked the temperatures in you community. 55 degrees F there. Below 0 degrees F here. 55 F = 13 C. 😎. 0 F = -17 C. 🥶 Get to work, it’s a lovely day in Mount-de-Marsan . 😁 the france is great...😜 and has various temp Edited January 16 by cquisuila (see edit history) Link to comment Share on other sites More sharing options...
RivNut Posted January 16 Share Posted January 16 2 hours ago, cquisuila said: the france is great...😜 and has various temp Last August my wife and I were in the Normandy area for a few days then traveled through Paris on our way to Frankfurt and Bavaria for a number of days. 1 Link to comment Share on other sites More sharing options...
cquisuila Posted January 16 Author Share Posted January 16 35 minutes ago, RivNut said: Last August my wife and I were in the Normandy area for a few days then traveled through Paris on our way to Frankfurt and Bavaria for a number of days. i live in west south at MONT DE MARSAN 1 Link to comment Share on other sites More sharing options...
RivNut Posted January 16 Share Posted January 16 6 hours ago, cquisuila said: i live in west south at MONT DE MARSAN I figured that why it’s in your signature block. 1 Link to comment Share on other sites More sharing options...
cquisuila Posted January 17 Author Share Posted January 17 I have a question : what's the matter of my original radiator please ?😄 Link to comment Share on other sites More sharing options...
EmTee Posted January 17 Share Posted January 17 3 hours ago, cquisuila said: what's the matter of my original radiator please ? I'm guessing the core is plugged. Have you tried performing a flow test? Cap the lower hose nipple, fill the radiator with water, then quickly remove the plug from the lower hose opening and measure the time needed to empty the radiator. Also note the diameter and distance of the stream of water exiting the radiator. Fatter and longer is better. Link to comment Share on other sites More sharing options...
cquisuila Posted January 17 Author Share Posted January 17 yes you told me this test thank you !! i have to make this when I have time to disassemble😁 Link to comment Share on other sites More sharing options...
RivNut Posted January 17 Share Posted January 17 (edited) 4 hours ago, EmTee said: I'm guessing the core is plugged. Have you tried performing a flow test? Cap the lower hose nipple, fill the radiator with water, then quickly remove the plug from the lower hose opening and measure the time needed to empty the radiator. Also note the diameter and distance of the stream of water exiting the radiator. Fatter and longer is better. In the beginning you should see a “fatter and longer” flow. But as the radiator empties the flow will be less fat and less long. The weight of the water in the radiator exerts pressure on everything below it.. As the weight diminishes, so does the pressure. When the cooling system is operating, water is flowing into the top tank and exiting through the bottom. Anything that might be clogging the tank settles on the tops of the tubes. Turn the radiator upside down and run water from the bottom down and out the top. Some of the clog will be forced out. I had poor heat in a car one time and the mechanic diagnosed it as a clogged heater core. He reversed the hoses going into the tank so the flow was in the other direction. Cleaned out the heater core without having to remove it. Edited January 17 by RivNut (see edit history) Link to comment Share on other sites More sharing options...
cquisuila Posted January 17 Author Share Posted January 17 thank you ! yes > I hear a sound of air when I open the heating control and i will reverse the hoses going to heat core Link to comment Share on other sites More sharing options...
RivNut Posted January 17 Share Posted January 17 36 minutes ago, cquisuila said: thank you ! yes > I hear a sound of air when I open the heating control and i will reverse the hoses going to heat core You might not be able to do that on your Riviera. One side of the heater core takes a 5/8” hose, the other side takes a 3/4” hose. My car was a 1997 Chrysler JXi with a V6. Probably all metric and the same size hoses. Link to comment Share on other sites More sharing options...
cquisuila Posted January 22 Author Share Posted January 22 yes i found a repair garage for car radiators in Mont de Marsan, my city😇 i will give him to test my radator 2 Link to comment Share on other sites More sharing options...
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