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Topic: Welding (Read 3194 times) |
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Just a quickie 
When using a gasless mig welder, you obviously have to disconnect the battery. But is it also advisable to remove the alternator output lead as well, to prevent damage to the electrics ?
Would appreciate any advice 
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PJDavis
Senior Member
2 x 1995 Jag X300 3.2 / 4.0 (Henley) 1957 XK140
Posts: 1474
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Re: Welding
« Reply #1 on: Mar 24th, 2011, 7:56am » |
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Gas or no gas, I would always remove battery leads and alternator plug. The only time I can think of when not removing is when doing TAGS welding like on a Stainless Steel exhaust, but even then I'd be disconnecting.
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I love 'Movvy'
1995 Jaguar XJ6 X300 3.2 (Henley)
1995 Jaguar XJ6 X330 4.0 (Dopey)
1957 Jaguar XK140 USA (converted to RHD, and to have fitted Mk10 420G Engine with BW 65 Auto Trans)
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ernie
Newbie
I'm a YaBB newbie!
Posts: 19
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Re: Welding
« Reply #2 on: Mar 25th, 2011, 8:50pm » |
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Always pull the battery negative lead but usually don't bother with the alternator and have had no problems. However on modern lorries with a truly frightening amount of wiring and computers (with even more frightening price tags) I just fire them up and let em tick over.
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a900one
Full Member
A scorpio is for life not just for christmas
Posts: 980
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Re: Welding
« Reply #3 on: Apr 3rd, 2011, 4:38pm » |
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I have one of the things you clip on the battery terminals, a surge protector.
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Welding
« Reply #4 on: Apr 4th, 2011, 9:07am » |
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A surge protector eh ?...that's a good idea ...where do you get them ?
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a900one
Full Member
A scorpio is for life not just for christmas
Posts: 980
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Re: Welding
« Reply #5 on: Apr 14th, 2011, 4:53pm » |
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I got mine at a bootsale for £2 ,  , but they are on ebay for £40 app.
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Welding
« Reply #6 on: Apr 15th, 2011, 2:49am » |
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Something like THIS ?
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a900one
Full Member
A scorpio is for life not just for christmas
Posts: 980
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Re: Welding
« Reply #7 on: Apr 22nd, 2011, 9:17pm » |
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Thats the one
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Welding
« Reply #8 on: Apr 24th, 2011, 4:06am » |
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Thanks mate, I'll definately be investing in one of those ....removing the alternator leads everytime is going to start to become a bit of a drag
Reason I started this post is because the wifes 2.3 estate failed the MOT on O/S rear sill...victim of an over zealous MOT tester ?....hmm 
Anyway, the garage gave me a silly quote for welding & I basically told them to put it where the sun doesn't shine & I'd bring it back the next week for the free retest.
Time to start practicing with that Powercraft gasless mig welder I bought from Aldi last year
Here's the results....
After I cut out the rotten bits of the sill, I thought, "why stop there ?"...the wheel arch was pretty bad as well
Sill & part of the wheel arch welded
Both sill & wheel arch welds finished & ground down
Skimmed off/neatened with some Isopon 'Metalik'
All primed with Zinc 182
What do you think ?....Not too bad for a first attempt at welding, eh
Just gotta get a batch of paint mixed & matched...& some laquer. Think I'll do it with the airbrush, seeing as it's just a small job. Hopefully should look good as new when finished
P.S.... it did pass the MOT a week later & the tester said that it was pretty good job 
Onwards & upwards as they say 
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Mike H
Senior Member
Renault Clio
Posts: 2594
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Re: Welding
« Reply #9 on: Apr 24th, 2011, 12:05pm » |
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Well done that man! 
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Mike H
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lesterlad aka Rodders
Full Member
2.3 Ghia x Estate (Manual)
Posts: 877
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Re: Welding
« Reply #10 on: Apr 24th, 2011, 12:21pm » |
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Well done @ your first go.
I've had about twenty go's (with the powercraft stick welder) on different thickness's of metals and my attempts always finish up looking like blobs of pigeon droppings.  
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There's are methods to my madness!!! I'm not sure what the methods are but there's definitely madness in them
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Mike H
Senior Member
Renault Clio
Posts: 2594
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Re: Welding
« Reply #11 on: Apr 25th, 2011, 2:44pm » |
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Probably be the same if I tried it!
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Mike H
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Scorpio_Mike
Senior Member
Jeep Grand Cherokee 3.0 V6 & 2.8 Sierra XR4i 4x4
Posts: 2354
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Re: Welding
« Reply #12 on: Apr 25th, 2011, 9:12pm » |
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Nice work JC
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Star sign is Scorpio !
Sierra XR4i's are great...especially when fitted with 4WD
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: Welding
« Reply #13 on: Apr 25th, 2011, 11:02pm » |
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Cheers guys
If anyone is wondering why the sill patch is blue...it's because it was cut from the door skin of one of the two doors I replaced on my Scorp a couple of years ago....ideal welding material
The Powercraft welder is okay, but very difficult to get a smooth continuous weld going (wire slippage ?) & tends to easily make holes in bodywork even at the lowest 25 amps setting (if that is what it really is ?).
I'm using 0.9mm flux wire (came with welder)....maybe 0.8mm would be better ?
It is well worth the £90 paid for it, but probably not worth much more than that
I'm looking at a Clarke EN90/100/110 as an upgrade, as I've read some good customer reviews about them
Anyone own one of these ?....& can they recommend them ?
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Tekno
Full Member
Tenho Ruohoranta
Posts: 599
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Re: Welding
« Reply #14 on: Apr 26th, 2011, 8:15pm » |
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there is also 0.7mm flux wire to consider. good for thin but needs low current.
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1998 Ford Scorpio Ultima Estate 2.3i 16V
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PJDavis
Senior Member
2 x 1995 Jag X300 3.2 / 4.0 (Henley) 1957 XK140
Posts: 1474
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Re: Welding
« Reply #15 on: Apr 26th, 2011, 9:25pm » |
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Clarkes are good machines, but also tend to suffer from slip unless the rollers are really forced together. People always tend to use 'pub-gas', but if you can get a hold of an 'active' gas like Argon/O2 mix 10%, you'll find the weld much easier, and a much better finish. Even with an 'Inert' gas like pure Argon the finish would be a lot better. Cleaning and Preparation is the secret as well, and joining in wee spurts from either-end followed by joining up the small welds. I used to do loads of welding on cars, after serving my apprenticeship on the Railway which involved all-sorts of rubbish welding on Locomotives, Gas-Welding was 'my-thing' though, you can't beat Oxy-Acet' welding! Boys and Fire eh!
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IP Logged |
I love 'Movvy'
1995 Jaguar XJ6 X300 3.2 (Henley)
1995 Jaguar XJ6 X330 4.0 (Dopey)
1957 Jaguar XK140 USA (converted to RHD, and to have fitted Mk10 420G Engine with BW 65 Auto Trans)
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