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Venting......@%!&ng Radiator

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Old Apr 25, 2010 | 01:05 PM
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Default Venting......@%!&ng Radiator

Last (ha ha) item to go on the car. Put the air dam on my 73 and secured the last bolt. Then, drip,drip on my head...anti-freeze. Started the car only to find that I had made a pinhole in the radiator.

Bummed.

I was toying with the idea of Stop-leak. I don't want that stuff inside my new engine. I really don't want to pull everything apart.

Very depressing.

I think I may go with a 3 row aluminum with electric fans. Any opinions?

-mike
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Old Apr 25, 2010 | 01:12 PM
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Bummer, I feel your pain. I have DeWitt's with spal fans on both my vettes. Great product.
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Old Apr 25, 2010 | 01:15 PM
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Unsure if you have any mods, but a good aluminum radiator from DeWitts will do the trick without the fans. I put one in mine and it made a big difference in cooling over a rebuilt stock radiator. Putting on fans when you dont need it will only lead to more power from your alternator.
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Old Apr 25, 2010 | 06:12 PM
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I don't believe I had the original radiator repaired 4 years ago and never had a leak during the entire restoration. Maybe, I will just get it fixed again.
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Old Apr 26, 2010 | 09:21 AM
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Originally Posted by 71406
Unsure if you have any mods, but a good aluminum radiator from DeWitts will do the trick without the fans. I put one in mine and it made a big difference in cooling over a rebuilt stock radiator. Putting on fans when you dont need it will only lead to more power from your alternator.
A good aluminum Dewitt's radiator is the way to go. I never understood all the whiz bang electric fans on motors that should run cool if everything is set up properly. The extra fans are usually just masking an underlying, unresolved problem. I am running motors with over 400 hp with stock radiators and clutch fans and they run 180 all day long in the summer.
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Old Apr 26, 2010 | 02:31 PM
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Default I like mine

The change to a DeWitt's and Fan combo is one of my favorite things I have done on my 75.
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Old Apr 26, 2010 | 02:33 PM
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The radiator is a ***ch job to do - especially the shroud .
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Old Apr 26, 2010 | 07:52 PM
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Mike, Give this a try, It should do the trick!

http://www.dewitts.com/pages/product...asp?ProdID=281

John
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Old Apr 26, 2010 | 10:51 PM
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Originally Posted by capevettes
A good aluminum Dewitt's radiator is the way to go. I never understood all the whiz bang electric fans on motors that should run cool if everything is set up properly. The extra fans are usually just masking an underlying, unresolved problem. I am running motors with over 400 hp with stock radiators and clutch fans and they run 180 all day long in the summer.
Move to Texas & let's hear you say that. Besides, ever have a clutch fan fail & embed itself in the radiator? I have, electrics are the only way to go.
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Old Apr 27, 2010 | 08:29 AM
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Originally Posted by ratflinger
Move to Texas & let's hear you say that. Besides, ever have a clutch fan fail & embed itself in the radiator? I have, electrics are the only way to go.
Never had a clutch fan do that in 38 years of driving old Corvettes. Guess I've been lucky. It is a different climate down there that will definitely test your cooling system but there are plenty of people running original setups as long as everything is set up properly.
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Old Apr 27, 2010 | 10:04 AM
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Just ordered my Dewitts. Thanks for the input.
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Old Apr 27, 2010 | 10:13 AM
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Geez... All of that for a pinhole leak??!!! Drain the radiator, wire brush the area of the leak to be clean of paint and corrosion, wipe some flux over the area, heat it up with your propane torch and add a 'dollop' of solder and let it flow smooth. Let it cool and touch up the paint; put in coolant and go.

Replacing the radiator to fix a pinhole leak is like getting a new paint job if you get a rock nick.....
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Old Apr 27, 2010 | 10:22 AM
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Originally Posted by 7T1vette
Geez... All of that for a pinhole leak??!!! Drain the radiator, wire brush the area of the leak to be clean of paint and corrosion, wipe some flux over the area, heat it up with your propane torch and add a 'dollop' of solder and let it flow smooth. Let it cool and touch up the paint; put in coolant and go.

Replacing the radiator to fix a pinhole leak is like getting a new paint job if you get a rock nick.....
I thought about it. I'm sick of doing all of this work. The leak is in a spot that would require removal. WHo is to say that I won't find another once the system is pressurized.

When I got the 36 year old, original radiator fixed there were multiple leaks. I don't wnat to worry about yanking this thing apart again.
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Old Apr 27, 2010 | 11:25 AM
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Originally Posted by mzmgb
Just ordered my Dewitts. Thanks for the input.
You will be pleased with your decision.
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Old Apr 27, 2010 | 03:02 PM
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If the radiator is in "questionable" condition, I respect your hesitancy to keep the original radiator. A DeWitt's unit is certainly a good product to use as a replacement. I had the same decision to make and chose to have my original radiator hot-tanked, re-cored and the tanks/fittings repaired as necessary. It cost me about 1/2 the expense of a new DeWitt's unit and it dropped right back in where it set for the first 35 years of its life. I'm happy with my decision...but this decision is yours.
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Old Apr 27, 2010 | 03:59 PM
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Originally Posted by capevettes
A good aluminum Dewitt's radiator is the way to go. I never understood all the whiz bang electric fans on motors that should run cool if everything is set up properly. The extra fans are usually just masking an underlying, unresolved problem. I am running motors with over 400 hp with stock radiators and clutch fans and they run 180 all day long in the summer.
Engine fans run great. They also run ALL THE FREAKING TIME.

Give me power, get rid of that stupid hoover noise every time I get on the gas pedal (yeah, it's a clutch fan, and the clutch works, but it still makes plenty of noise), and GIVE ME ROOM TO WORK IN FRONT OF THE MOTOR!

Oh my god, I hate pulling the clutch fan every time I swap belts.
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