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post #1 of (permalink) Old 06-17-2004, 01:42 AM Thread Starter
 
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Need a crash course....

In radiator soldering.

I've got the solder, and either an iron or propane torch.

How do I go about doing this?
It's a decent sized leak on the seam between the core and the top resovoir.

So how does this work?

TIA guys.

(The worst part is, there was no leak before I took the rad out, and did the engine swap.)
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post #2 of (permalink) Old 06-17-2004, 11:13 AM
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Re: Need a crash course....

if the leak is that small, stop leak will usully cure it.
otherwise, clean the area with a wire brush, heat it a bit.. then hit it with flux and clean it again. heat the entire area, apply flux, and use acid core solder for the repair.
I once used a fishing sinker and a propane torch on the trail...
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post #3 of (permalink) Old 06-17-2004, 12:16 PM
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Re: Need a crash course....

</font><blockquote><font class="small">In reply to:</font><hr />
I once used a fishing sinker and a propane torch on the trail...

[/ QUOTE ]

Now THAT (in true Marine fashion) is 'adapting &amp; overcoming'! [img]images/graemlins/40BEER.gif[/img]

Chris: Clint would be proud of ya! [img]images/graemlins/tongue.gif[/img]
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post #4 of (permalink) Old 06-17-2004, 07:00 PM
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Re: Need a crash course....

1. Use as little heat as possible to melt the solder,
2. Heat the metal, not the solder....
3. Let the metal melt the solder.
4. Clean the metal,
5. As has been said,
6. Use FLUX, and ACID CORE solder,
7. If you have to...
8. Don't be afraid to make a brass patch,
9. And solder it in place.
10. The job's not hard,
11. But it does have to hold about 12 - 15 psi.
12. Make sure the tank seam's separated,
13. Not fractured.
14. It's a bit more work with a fracture.
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post #5 of (permalink) Old 06-17-2004, 11:34 PM Thread Starter
 
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Re: Need a crash course....

It's a pretty big leak, it starts leaking even before the thermostat has opened.

I've got a feeling its either seperation or a fracture like LEVE said.

So do I use the propane torch? (blue.. yellow part?) or the iron?

I assume the torch?? I'm not going to have to worry about separating the existing joint am I? if I get the area too hot is it going to fall appart?

Too bad none of you guys live close by.. I could have a nice Cold CANADIAN beer in the fridge for you. [img]images/graemlins/grin.gif[/img]
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post #6 of (permalink) Old 06-18-2004, 03:14 AM Thread Starter
 
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Re: Need a crash course....

Well I think I got it.

If not, I'll have to spring for a nicely tigged alum rad from some expensive company. [img]images/graemlins/grin.gif[/img]

I used the propane torch, on its lowest setting before the flame went out.

Held it quite far (4 or 5 inches) away, and heated the area.

The leak was in one of the actual cores.

It was about 1/2" from the resovoir, and looked like it had contracted and expanded and cracked.

I cleaned it, applied the heat, and then put a little solder in a time... then when I was satisfied, I covered the whole area in the stuff [img]images/graemlins/grin.gif[/img]

This rad was pretty beat up to begin with. [img]images/graemlins/frown.gif[/img] the fins on the front have seen more then their fair share of bugs.. hoses, branches and other assorted crap.

thanks for the info guys.
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