how to fix this???

Anonymous-0 · Apr 30, 2010

Hey folks,
This radiator is in real good shape..Except for this flange. I've tried solder, epoxy, etc with no luck. What is the right way to fix it and comeone put it in dummy terms with a few pointers?

Thanks, Dave

jim in N M · Apr 30, 2010

Dave ,eather take it to a Rad shop or remove it along with all the acum-pucky and clean it real got ,tin it and solder it back together, Thats what I'd do with it HTH ...Jim in N M

Anonymous-0 · Apr 30, 2010

Only way a radiator shop will touch it is they redo the entire radiator (about 500 bucks). Any shop/garage that does a service has to gaurantee that service for 2 years. Lot safer to gaurantee a refurb than a solder.
So,
I clean everything completely, sand, brush, wash, degrease, etc.

What's next (what is tin it)?

Certain kind of solder/flux or the same as if I was soldering plumbing?

Thanks,

Dave

Kris Golden · Apr 30, 2010

cleanliness is everything, take the neck completely off so the entire thing can be cleaned up good and bright.

Lou from Wi. · Apr 30, 2010

Fixed many of em. De-solder. wire brush it.clean with sandpaper,make it bright,then put acid core flux paste on it lightly, heat up and use 50=50 solder and flow it out to where its just ever so slightly colored with solder( Thats tinning) put on paste flux, re-insert neck and re-solder it . Done a lot of radiator repair,heater cores, etc. Works out great, LOU

Anonymous-0 · Apr 30, 2010

CLEAN, then FLUX just like copper pipe in pluming used to clean them with acid, nasty stuff I could get from the redy mix co. I worked for, they used it to clean concrete off of the mixer trucks.

Jiles · Apr 30, 2010

I have repaired many that looked worse then yours. As was already stated--CLEAN.
I have found that commercial "bowl cleaner" will clean the metal like new, just experiment. After cleaning, wash and scrub the metal with a mixture of water and baking soda. Sand and solder same as copper pipe.

Keith Molden · Apr 30, 2010

As already said --Clean, I have a dremmel that I like to use on the hard to get at places =even works well on the not so hard to reach places. then use plenty of soldering paste, tin it then solder it--solder should flow freely around it if it's clean. Keith

Keith Molden · Apr 30, 2010

Dave, tinning is just applying a thin coat of solder to the surface before you put the 2 pieces together--It assures the solder will flow and will let you know if it isn't clean enough in any spot==the solder won't flow on a dirty spot. Keith

Spook · Apr 30, 2010

After I clean them up, I use a scotchbrite pad on the parts, you want bright, shiny metal to solder. I have done a lot of soldering. I would use the same solder and flux. Not much different than a hot water tank.

how to fix this???

Anonymous-0

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jim in N M

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Anonymous-0

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Kris Golden

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Lou from Wi.

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Anonymous-0

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Jiles

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Keith Molden

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Keith Molden

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Spook

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