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Old Jan 18, 2007 | 10:27 AM
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I have a car that has been sitting for a long time (16yrs). I have been in the process of replacing all of the "soft" parts in the engine (belts, hoses) and fluids. Upon closer inspection of the radiator I saw some crystalized anti-freeze a the drain plug.

I have removed the raditor for a pressure check and cleaning. It was found there were some minor "high pressure" leaks in the ends and main center body of radiator. The ends can be repaired, but can the radiator be dismantled and this center area repaired? What are your experiences?

I thought it was the original "Harrison" radiator due to finding a sticker under some black paint which clues me to a preivous repair, but it appears to be copper and brass. I thought the original radiators on these were aluminum? Should I proceed to get this repaired? Is it worth it? I don't know the quality of repairs this shop does, but they have been around for a long time. It will probably run around a $100 to $150. I saw the price of a resto replacement from Dewitts...and well I would like to get thing on the road to assess what else it needs before dropping $800 for a radiator.

Thank you in advance for suggestions.
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Old Jan 18, 2007 | 10:52 AM
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FWIW, If your comfortable spending 100-150 in order to get everything up to par, that's not a bad idea. I had a copper/brass unit center section repaired and it was fine until I got my new DeWitts. The real pleasure and true performance of the cooling system will come with the DeWitts unit. In your efforts make sure your vacuum diaphram in the distributor advance it working, it's a system function related to cooling the engine at idle. Check the archives on the forum for additional ideas and tips. Dennis
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Old Jan 18, 2007 | 10:56 AM
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I would have it repaired. The radiator shop should tell if they can fix to run correctly or if the fix is simply a band aid. I suspect that if the rad is simply repaired and not recored then it will look like a repair with the spots where the leaks were covered in solder.
I have rads repaired whenever possible, (subject to price, ie the 100-150 vs 800).


oWEN
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Old Jan 18, 2007 | 11:02 AM
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if the radiator was cooling OK for you way back when, and if it's a copper & brass radiator; then it can (and should be recored).
Bill
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Old Jan 18, 2007 | 11:43 AM
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Thanks for the input. I'll talk to them about getting recored. I didn't know the stack units could be recored.

I'll check that vac diaphram, never even occurred to me. I got a hold of an aluminum cross flow, but I really would rather have the original in place, not to mention they are very efficient.

It's funny I used to poke fun at my Dad for being a "Purist" with regard to restoring cars, but as I get older I begin to miss the simplicity and originality of it all. I now find myself learning "numbers" and looking for matching stuff. Just funny how it works.
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Old Jan 18, 2007 | 02:53 PM
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Originally Posted by Sundevil64
Thanks for the input. I'll talk to them about getting recored. I didn't know the stack units could be recored.
The stacked-plate Harrison aluminum radiators can't be re-cored or repaired - they're ALL "core", with no separate end tanks. If the one you have is copper/brass (has end tanks), it's an aftermarket replacement, and it can be re-cored.
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Old Jan 18, 2007 | 02:59 PM
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This is the "stack" style. I thought it was copper brass. I could easily be mistaken. There are no side tanks. It must be aluminum. I don't know where I got that thought. So, it sounds like a new Dewitt. Guess I will use my other aluminum until I save my change...
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Old Jan 18, 2007 | 04:46 PM
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Originally Posted by Sundevil64
This is the "stack" style. I thought it was copper brass. I could easily be mistaken. There are no side tanks. It must be aluminum. I don't know where I got that thought. So, it sounds like a new Dewitt. Guess I will use my other aluminum until I save my change...
Don't forget we offer an alternative to the Restoration radiators. They are call Direct Fit and slightly less in btu than the stack unit but still 25% more than a copper replacement.

I feel there is really only two good choices when it comes to midyear radiators and that is #1 the resto rad or #2 the Direct Fit.

The A63M is a real nice piece, all aluminum, and affordable at $525.
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Old Jan 18, 2007 | 05:29 PM
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I have the direct fit pictured above and had Tom paint it black. I have a stock SHP motor and don't care about judging so it was the best choice for me. IN true poser fashion I slapped a repro Harrison sticker on it. 95% of the people who see the car will not know the difference and best of all IT WORKS VERY WELL.


Brian
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Old Jan 18, 2007 | 05:54 PM
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From: Austin Tx
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Thanks Tom for jumping in. I was actually talkin to Gary at Austin Corvette and he spoke very highly of your radiators. I'll be in touch.
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Old Jan 18, 2007 | 10:57 PM
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I was all set to go with Tom's Direct Fit replacement radiator for my driver '64. .. .. In the end it was a Restoration unit that fit the bill. The stacked plate look of the Restoration style radiator has always appealed to me as being 'Corvette', in my mind. I guess I just couldn't get past that nagging thought! ..
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Old Jan 18, 2007 | 11:20 PM
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Aren't there some "high efficiency" copper replacement cores now available?

More fins per inch or whatever?
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