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09-16-2021, 03:42 PM | #21 |
Junior Member
Join Date: Aug 2021
Location: Henderson, TN
Posts: 20
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Re: Pressurized Radiator
Sounds like "other" trouble to me; hope you find it.
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09-16-2021, 03:43 PM | #22 |
Junior Member
Join Date: Aug 2021
Location: Henderson, TN
Posts: 20
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Re: Pressurized Radiator
I wonder if Evans Coolant would help after a thorough cleaning. Just wondering.
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09-16-2021, 05:08 PM | #23 |
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Join Date: Jan 2018
Location: Tocumwal, NSW, Australia
Posts: 1,748
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Re: Pressurized Radiator
I have fitted a pressurised radiator and a bearing non leaking water pump. I am unhappy with the radiator which has not offered any advantage above non pressurised system because it still over heats. I have fitted a chrome cylindrical over flow but have not run it for a summer as yet. It looks likely I will remove the petition between the radiator ducting from the top tank.
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09-22-2021, 03:43 PM | #24 |
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Join Date: May 2010
Posts: 2,597
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Re: Pressurized Radiator
See correction to my post # 20 ... in BLUE...
Last edited by Benson; 09-25-2021 at 01:00 PM. |
09-24-2021, 08:12 AM | #25 |
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Join Date: Jul 2021
Location: Charleston SC
Posts: 169
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Re: Pressurized Radiator
I will be running a pressurized radiator on my Model A pickup because the old radiator leaks and has junk in it. I will be dailying my truck in sometimes stop and go traffic down in SC. so I need all the cooling I can get. I am going with a Brassworks extreme touring 11fpi pressurized radiator with an overflow tank. A six blade fan that i also bought will help as well. No thermostat, cause it barely drops below freezing here
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09-24-2021, 06:59 PM | #26 | |
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Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,496
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Re: Pressurized Radiator
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Quote:
I have a radiator with a honeycomb core which is nice and clear but honeycomb is not as efficient as a modern core. I'm thinking seriously about having it re-cored with a modern 3 row core. I expect that will be so efficient, I'll have to use a thermostat for ordinary running but I' I'll have plenty of cooling up my sleeve for when I towing in the heat up north.
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02-01-2022, 03:33 PM | #27 |
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Join Date: Dec 2021
Location: Auburn Maine
Posts: 23
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Re: Pressurized Radiator
The thermostat acts as a restrictor the water pump is pushing water too fast to the top of the radiator and it’s going out the overflow
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02-01-2022, 04:44 PM | #28 |
Senior Member
Join Date: May 2016
Location: Scottsdale, Arizona
Posts: 612
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Re: Pressurized Radiator
Just a thought...but if a new radiator is not cooling the engine...then you might want to check that your head gasket is not leaking and that the inside of the block and head water passages are clean or mostly clean...water pump impeller is another place to check...Ernie in Arizona
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02-01-2022, 05:33 PM | #29 | |
Senior Member
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,496
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Re: Pressurized Radiator
Quote:
If water is coming out of the overflow after the system has found equilibrium, there is a problem like exhaust gasses getting in there (blown head gasket or cracked block). |
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02-04-2022, 07:55 AM | #30 |
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Join Date: May 2010
Location: Long Island, NY
Posts: 3,470
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Re: Pressurized Radiator
I have run a low pressure coolant system using an orifice in the radiator's overflow line and a snug fitting radiator cap. The weak link is the water pump. It will leak, so be prepared to adjust the packing on a regular basis. My orifice technique did keep the coolant nearly constant until the pump started leaking. No overflow tank was necessary.
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02-06-2022, 04:21 AM | #31 | |
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Join Date: Jan 2018
Location: Tocumwal, NSW, Australia
Posts: 1,748
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Re: Pressurized Radiator
Quote:
The pressurised radiator has the filling cap on a goose neck. Square one so it is not possible to get a visual check on water level. Shown in posting number 18 left picture. I have an overflow tank fitted, granted a small quantity one as in the picture again submitted by Dave in MN, submission number 18- the centre picture, the long chrome cylindrical tank. It doesn’t hold all the water from the overflow. Maybe a little more than half a gallon lost. This radiator is my ’28 ute. My ’28 tourer has an atmospheric radiator which runs cooler. Both have the same temp gauge and measuring point the same, ie on return to the top of the radiator. The unpressurised radiator is of bigger capacity, but I don’t know how much bigger. I probably will have the baffle removed to hold more volume. Much of my summer running is in temps over 75c, frequently up to 100. When it exceeds 100 I stay home. Melbourne, as you know, because that's where you live, is mostly cooler but with hot northerly winds temps are the same as ours which I have listed.
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I know many things, But I don't know everything, Sometimes I forget things. And there are times when I have a long memory. |
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02-06-2022, 09:14 AM | #32 |
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Join Date: Mar 2012
Location: Ohio
Posts: 1,972
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Re: Pressurized Radiator
Dave, I love that Burtz engine with the dual downdrafts. What cam is in it?
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