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09-21-2017, 11:42 PM | #1 |
Senior Member
Join Date: Dec 2011
Location: NW North Carolina
Posts: 461
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Cleaning a radiator
I have a 1941 Ford radiator that came on my truck. When I checked, the local radiator shop was going to charge within $20.00 of what a new aluminum one would cost to check my old radiator and rod it out. So I bought an aluminum one.
Now I find (8 years later) I need a radiator to check out my current flathead build on the run-in stand. I don't want to buy a radiator because I don't know what I am going to put the engine in and I don't want to put the old radiator on a fresh build with a clean block without cleaning it out. I have searched and most suggestions I found are for techniques with engines running in the car. I need some ideas with the radiator off the car.
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09-22-2017, 03:10 AM | #2 |
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Join Date: May 2010
Location: Qld, Australia
Posts: 4,228
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Re: Cleaning a radiator
Take the top tank off,Ann easy job,use a small gas burner and your air gun from the compressor to blow the melted solder out,clean the tubes,clean and tin the tank and top plate stick it back on .
I used a special radiator solder that was about 3/16 diameter. after that my 33 will run in 42-44 C temps and not get hot,thats even towing. Lawrie |
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09-22-2017, 05:27 AM | #3 |
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Join Date: Sep 2010
Location: South Coast NSW Australia
Posts: 2,596
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Re: Cleaning a radiator
I have had 2 goes at rodding out a radiator and both were not real good.
Caused or got a multitude of leaks . Used snake oil in them after and it was satisfactoy to plug the leaks. But only worth it if you have the time to chance it. |
09-22-2017, 06:33 AM | #4 |
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Join Date: Dec 2014
Location: Miami Oklahoma
Posts: 535
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Re: Cleaning a radiator
Might also use a cheap modern radiator and get creative with the hoses? Just a thought.
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Tommy |
09-22-2017, 03:05 PM | #5 |
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Join Date: May 2010
Location: new britain,ct 06052
Posts: 9,393
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Re: Cleaning a radiator
Plug the bottom outlets and fill with vinegar or evaporust and let sit. Flush and backflush. Some guys use lye, etc.
Ck on the A forum for "radiator cleaning". Paul in CT |
09-23-2017, 08:23 AM | #6 | |
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Join Date: May 2010
Location: Florida and Penna.
Posts: 4,471
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Re: Cleaning a radiator
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Quote:
block the bottom outlets and soak with whatever for a few days. Then rinse out and blow tubes clean. G.M.
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