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08-20-2017, 08:10 AM | #1 |
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Join Date: Aug 2017
Location: Southern Ohio
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pressurized radiator
I am looking at a 31 Deluxe Sedan and it has a pressurized radiator with the fake top neck. The real filler neck is mounted on the back of the top tank. What are the pros/cons of this setup?
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08-20-2017, 09:54 AM | #2 |
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Join Date: May 2010
Location: NC
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Re: pressurized radiator
I would be concerned about the water pump leaking. They were not made for pressure.
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08-20-2017, 11:18 AM | #3 |
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Join Date: Apr 2017
Location: Lower Left Coast
Posts: 469
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Re: pressurized radiator
Just because it has a newer style radiator, doesn't mean that the system is pressurized. You can crack the top radiator cap and the system will vent out the top and negate the pressurized cap under the hood.
Where is the overflow pipe located? If it is under the top cap, it is already vented. If it is beside the pressurized cap, then just crack loose the top cap and there will be no more pressure. You can drill a small hole behind the false top cap if needed to vent the pressure.
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08-20-2017, 11:25 AM | #4 |
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Join Date: Aug 2011
Location: Millbrae, CA
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Re: pressurized radiator
I have that setup, made by Walker Radiator Co. I have the newer "leakless" water pump. My rebuilt block has some hairline cracks near the top, and I use a 4Lb. cap. I have no visible leakage on trips, but after a 250 mile freeway drive, I lost about 2 quarts of coolant. Engine never gets over 180.
No complaints from me. Water should be checked regularly anyhow due to the block cracks, to make sure nothing is getting worse. |
08-20-2017, 11:33 AM | #5 |
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Join Date: Aug 2017
Location: Southern Ohio
Posts: 45
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Re: pressurized radiator
I will check all this out when I go this week to take a second look at the car. That is why I asked about it. New to all this. I am sure whatever setup that was used on this it is probably ok. The rest of the car seems to be done right. It has a B motor in it also. Are the water pumps different on these?
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08-20-2017, 12:16 PM | #6 |
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Re: pressurized radiator
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08-20-2017, 05:47 PM | #7 |
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Join Date: May 2010
Location: Camarillo, CA and Pine Grove, CA
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Re: pressurized radiator
My pressurized system works well. A four pound cap. I have a sealed pump. I found it necessary to add a surge tank. I bought a nice one that fits between the radiator and shell from Brassworks.
http://www.thebrassworks.net/shop/Pa...3ceb4925253884
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08-20-2017, 06:14 PM | #8 | |
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Location: Southern California
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Re: pressurized radiator
Quote:
Charlie Stephens |
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08-20-2017, 07:02 PM | #9 | |
Member
Join Date: Aug 2017
Location: Southern Ohio
Posts: 45
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Re: pressurized radiator
Quote:
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08-20-2017, 09:50 PM | #10 |
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Join Date: Jun 2010
Location: Middleburg, Virginia
Posts: 421
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Re: pressurized radiator
A good friend of mine has a Brassworks on his cabby and no problems after many, many miles.
Sewall |
08-20-2017, 11:47 PM | #11 |
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Join Date: May 2010
Posts: 106
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Re: pressurized radiator
I am using a Brassworks pressurized radiator, Vintage Precision 180 degree thermostat, Rupert Extreme water pump, works well, consistently runs at 180. Have over 10,000 miles with very good results.
A's Always Dave |
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