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post #1 of 8 Old 02-05-2017, 02:49 PM Thread Starter
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What to do if i want to weld

I need to know if i want to weld muffler what to do ...

Remove negative pole ???

DD
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post #2 of 8 Old 02-05-2017, 10:34 PM
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Negative poles???

You can clamp or weld exhaust. What are you doing to give us a better idea?

You can weld by brazing with a gas torch or arc weld with an electric torch or even a car battery, jumper cables and a welding rod.

Im more of a clamp guy when it comes to exhaust.
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post #3 of 8 Old 02-06-2017, 05:20 AM
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post #4 of 8 Old 02-06-2017, 08:23 PM Thread Starter
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If you use TIG so you have to remove negatif pole or use a zap ... what are you doing when you weld on tig ...

DD
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post #5 of 8 Old 08-02-2017, 11:10 PM
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I had a 1986 Ford Mustang with 5.0 liter V-8, which I bought in 1993 for $2000. What a rustbucket! It was a big project, only reason I bought it was the mag wheels and tires on it was probably worth what I paid for it. A/C was dead, stereo removed, dash all cracked, rusted out rear hatch. Found out the overdrive band in the AOD was on it's last legs as would hear a scraping sound when it engaged. Bought it from a guy name Marquis DeSade so what do you expect? Funny thing is the engine, with 110,000 miles did not eat a drop of oil.

I did a lot of rust repair on the car where I cut out and replaced the rust with new sheetmetal using a fluxcore MIG welder. Back then, I always disconnected the battery when welding on it. However I forgot to do this on several occasions, and nothing happened. I did about $25K worth of autobody work on that car, if you had a pro do it.

The new cars these days do all kinds of funny things when you disconnect battery power so sorry, your guess is as good as mine. You may want to ask around at your local autobody shops.

More than likely you won't be TIG welding on the car as it's used for finesse work. Most work done on mufflers is arc but MIG gives much better welds.

2013 Ford Mustang GT Premium with Track Pack (11-14 MPG)
2016 Nissan Versa Note SV (36 MPG and climbing)
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post #6 of 8 Old 08-02-2017, 11:52 PM
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Quote:
Originally Posted by VersaQuebec View Post
If you use TIG so you have to remove negatif pole or use a zap ... what are you doing when you weld on tig ...

DD
I use flux core in a cheap A/C welder and disconnect both terminals, never fried anything.
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post #7 of 8 Old 08-06-2017, 07:59 PM Thread Starter
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Hi ... when you mentionned that you disconnect both pole, does it effect on computer if it is not connected?

DD
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post #8 of 8 Old 08-06-2017, 09:27 PM
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As far as the computer is concerned disconnecting two poles is the same as disconnecting one. You have stopped the flow of current/electricity throughout the car with either.
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