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Need Help! with radiator.

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OH Boy

04-04-2005 08:17:04

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Hi Guys, I spent the whole weekend fixing leaks on the 2N. Even dropped the oil pan to replace rear main seal. That went well and I am hopeful that that drip is history now!

I also have had a coolant leak, never was sure where it was coming from. Took the radiator in to my local radiator guy the other day, he said he couldnt find a leak, even with 12 lbs pressure. ARG!

When I put it back together I filled it up and ran the engine a few minutes. Right away I found a little seapage on the front of the radiator way up high on the brass 'tank' if that is what its called. I thought, well a little solder will seal that right up. I learned there is a sort of a lead plug about 3/4 inch in diameter and the whole thing melted when I heated it! The more I heated trying to add solder the worse it got. Its like there is a 'core' of lead there running from front to back of the radiator. Its still attached at the back side but no longer at the front.

What do I do now? I am considering just taking some sheet brass and soldering over the hole but am I gonna have problems down the road? I am reluctant to go back to that radiator guy, he couldnt even find the leak in the first place. And, because I have now screwed it up even worse!

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HOOKER

04-04-2005 15:51:25

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Re: Need Help! with radiator. in reply to OH Boy, 04-04-2005 08:17:04

you"ll want to use silver solder, i couldn"t get lead core to do anything, silver solder works great
jake

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soundguy

04-04-2005 08:25:45

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Re: Need Help! with radiator. in reply to OH Boy, 04-04-2005 08:17:04

Should be no problem soldering some thin brass stock over it. Just flux the heck out of it and go at it like you would a copepr water pipe/sweat fitting.

In the past I've soldered pennies to thing to stop leaks.. Just hammered then flat on an anvill with a mallet.. worked great!

Soundguy

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OH Boy

04-04-2005 08:30:16

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Re: Need Help! with radiator. in reply to soundguy, 04-04-2005 08:25:45

I actually tried that, the hole is exactly the same size as a penny. It just kept falling out of place though before I had it all soldered in good. I finally quit I was afraid the penny was gonna end up inside the radiator. I bought some thin brass sheeting this morning at the hardware store. Cost $2.50 so if that works I'll be in good shape.

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soundguy

04-04-2005 08:39:24

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Re: Need Help! with radiator. in reply to OH Boy, 04-04-2005 08:30:16

Hammer that penny out.. it'l fit perfect. course.. so will the brass.

Wire brush or lightly sand the area perfectly clean. Flux the beejeezus out of it then 'tin' the area with the solder. Over on your bench do the same with the patch.. clean.. flux.. then 'tin' or 'wet' it. Then lay it over and start heating the joint.. once it flows you are good to go. Add solder IF necescary.. though there should already be enough with both surfaces tinned.

Soundguy

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OH Boy

04-04-2005 08:41:09

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Re: Need Help! with radiator. in reply to soundguy, 04-04-2005 08:39:24

Thanks, that is what I was planning to do.

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soundguy

04-04-2005 08:51:08

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Re: Need Help! with radiator. in reply to OH Boy, 04-04-2005 08:41:09

Sorry.. didn't mean to bore ya with solder instructions. by now most of us here DO already know how to solder!

Good luck

Soundguy

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OH Boy

04-04-2005 09:01:09

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Not boring! in reply to soundguy, 04-04-2005 08:51:08

I wanted and appreciate your input! Id still like to know why that core of lead is in there too if anybody knows. Whats it for?

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Ken Bohannon

04-04-2005 15:54:22

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Re: hole shot in reply to OH Boy, 04-04-2005 09:01:09

Maybe a previous owner thought it was time to put it out of its misery. A drunk deer hunter?

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