12-04-2020, 05:44 PM | #1 |
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Location: Apple Valley, MN
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Soldering iron
I need to replace the wires going to my horns and horn relay but my Weller gun doesn’t have enough wattage to melt the old solder joints. What wattage irons do you guys use for these joints?
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12-04-2020, 05:51 PM | #2 | |
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Re: Soldering iron
Quote:
Patience my friend, patience
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12-04-2020, 06:02 PM | #3 |
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Re: Soldering iron
This will do it in a heartbeat.
https://www.ebay.com/itm/300W-110V-S...EAAOSwbWpec7Z0 |
12-04-2020, 06:20 PM | #4 |
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Location: Utica, KY
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Re: Soldering iron
If space allows, I use a micro torch, Carefully.
https://www.harborfreight.com/butane...kaAh9HEALw_wcB |
12-04-2020, 07:17 PM | #5 |
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Re: Soldering iron
My gun was not heating up enough either and thought it had gone gunny sack. What happened is that the screws that hold the tip in place had loosened up. I retightened them and it works perfectly again......almost threw away a perfectly good soldering iron!
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12-04-2020, 08:54 PM | #6 |
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Re: Soldering iron
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Thanks! |
12-04-2020, 09:50 PM | #7 |
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Re: Soldering iron
Thats always nice when something works out!!
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12-04-2020, 10:55 PM | #8 |
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Re: Soldering iron
I have two old Wen 250 watt guns, they work great but you do have to keep the nuts tight. Tips are hard to find so I rebuilt my own using the original stubs that go into the gun and braising on 12 gauge solid house wire for the tip.
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12-04-2020, 11:20 PM | #9 |
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Re: Soldering iron
Sometimes adding a bit of flux to the joint to unsolder gets it started.
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12-05-2020, 12:05 AM | #10 |
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Re: Soldering iron
make sure the nuts are tight, and the contact area underneath is clean and your old solder gun will work fine.
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12-05-2020, 06:26 AM | #11 |
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Location: Melbourne Australia
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Re: Soldering iron
Melt some solder onto the tip of the iron while holding it against the job. The melted solder will act as a heat conductor and help melt the joint.
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12-05-2020, 08:27 AM | #12 |
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Re: Soldering iron
Got one of these at HF, you can pull the tip off and use it as a torch.
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12-05-2020, 12:55 PM | #13 |
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Re: Soldering iron
One thing not mentioned, is that solder alloys have different melting temperatures. Some alloys, i.e. 50/50 and 60/40 are in the 183 to 212C range, while some may need as much as 300C to melt. Silver solder can need 450C or higher to melt. So depending on the original alloy, the melting temp may be lower or higher.
https://www.petervis.com/Education/S...elting%20point. |
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