Date: Thu, 09 Dec 2004 21:56:23 -0500 From: Dave and Mysti Plummer To: Land Cruiser Mailing Reply-To: Land Cruiser Mailing > I thought this subject was pretty cool so surfed around and gathered a lot > of tips from several sources. Here they are for the archives. > http://www.icehouse.net/overland/derusting.html > http://www.bhi.co.uk/hints/rust.htm > > I am going to try my mig welder as a source +20 V @ 105 amps :-)Not all at > once of course! I have infinitely adjustable volts and amps on the welder... I was just wondering today if a DC welder could be used to jump start a vehicle. I don't remember this part of welding class but I guess they step down the voltage in order to get the amps...but how far? Dave From: "Mark C. Baker" To: "'Land Cruiser Mailing'" Subject: RE: [LCML] Speaking of welders and juice Date: Thu, 9 Dec 2004 22:30:26 -0500 Reply-To: Land Cruiser Mailing -----Original Message----- On Behalf Of Dave and Mysti Plummer Sent: Thursday, December 09, 2004 9:56 PM > I was just wondering today if a DC welder could be used to jump start a > vehicle. I don't remember this part of welding class but I guess they step > down the voltage in order to get the amps...but how far? I suppose it could if it can handle the required current, you observe the proper polarity when connected (Remember if you are welding with flux wire the polarity is the reverse of what it is with gas), you have the voltage set correctly. Not worth all the things that can go wrong... :-) Mark Baker aka Coolerman !Oy my 2/71 FJ40 (not road legal yet) From: "Drew" To: "'Land Cruiser Mailing'" Subject: RE: [LCML] Speaking of welders and juice Date: Fri, 10 Dec 2004 01:41:08 -0800 Reply-To: Land Cruiser Mailing -----Original Message----- On Behalf Of Dave and Mysti Plummer Sent: Thursday, December 09, 2004 9:56 PM > I was just wondering today if a DC welder could be used to jump start a > vehicle. I don't remember this part of welding class but I guess they step > down the voltage in order to get the amps...but how far? Hmmm... Im not familiar with how much voltage a welder uses. I mean im not familiar with how they create their power. Do they hook into 120 outlet or a 240? (commonly 110-220) I mean, your gonna pop the circuit breaker at around 17 amps on a wall outlet, same with the 240. I guess if I actually went and read up on how welders actually work I could answer your question but I don't know so... My advice, don't try it. :) Lets see, messing with a welder next to a very explosive large battery. Not a good scene IMO. But if you are crazy enough, heh, I'd start at the lowest amperage you can go! Because you don't want to arc and you sure as hell don't want to create too much heat. Bear in mind 12V car batteries aren't meant to handle more than 12V and like I said, I don't know how much voltage a welder uses, probably not to high a number since that wouldn't be very efficient. Heh goodluck Date: Fri, 10 Dec 2004 07:56:13 -0500 Subject: Re: [LCML] Speaking of welders and juice From: Dave and Mysti Plummer To: Land Cruiser Mailing Reply-To: Land Cruiser Mailing > Im not familiar with how much voltage a welder uses. I mean im not > familiar with how they create their power. Do they hook into 120 outlet > or a 240? (commonly 110-220) I mean, your gonna pop the circuit breaker > at around 17 amps on a wall outlet, same with the 240. I guess if I > actually went and read up on how welders actually work I could answer > your question but I don't know so... My advice, don't try it. :) > > Lets see, messing with a welder next to a very explosive large battery. > Not a good scene IMO. > > But if you are crazy enough, heh, I'd start at the lowest amperage you > can go! Because you don't want to arc and you sure as hell don't want to > create too much heat. Bear in mind 12V car batteries aren't meant to > handle more than 12V and like I said, I don't know how much voltage a > welder uses, probably not to high a number since that wouldn't be very > efficient. > > Heh goodluck Well, I didn't saw I WAS going to try it....just "wondering". ;) Dave From: "scott urquhart" To: landcruisers@birfield.com Subject: RE: [LCML] Speaking of welders and juice Date: Fri, 10 Dec 2004 12:24:47 -0800 Reply-To: Land Cruiser Mailing >From: Dave and Mysti Plummer >Date: Thu, 09 Dec 2004 21:56:23 -0500 > >I was just wondering today if a DC welder could be used to jump start a >vehicle. I don't remember this part of welding class but I guess they step >down the voltage in order to get the amps...but how far? > > >Dave Yes it can be done. I used to have to use the welder in the logging camp to jump start the tank drills. It is a scary thing to do so I do not recomend it. Scott Urquhart, 72/87 V8J40 TBI, K3 Gixxer 1000 Date: Fri, 10 Dec 2004 12:56:19 -0800 (PST) From: Ed V Subject: Re: [LCML] Speaking of welders and juice To: Land Cruiser Mailing Reply-To: Land Cruiser Mailing >From: Dave and Mysti Plummer >Date: Thu, 09 Dec 2004 21:56:23 -0500 > >I was just wondering today if a DC welder could be used to jump start a >vehicle. I don't remember this part of welding class but I guess they step >down the voltage in order to get the amps...but how far? > > >Dave My welder starts vehicles _very_ well (cuz it's a ReadyWelder, powered by two or three group31 batteries! ;) I do not think typical welders (consumer, AC powered) would be a good source to start a vehicle, because I don't think the starter motor is very voltage tolerant. My understanding is that they are not well-regulated voltage sources: the open circuit voltage (while current is not flowing) can be significantly different than the voltage under load (e.g., while welding... or turning a starter motor). They also exhibit voltage spikes during current transitions (when you start/stop welding). How much depends on the design, which can vary wildy (esp in newer welders). OK, since I haven't really helped much, I'll at least share a link that's more useful than me! http://www.lincolnelectric.com/knowledge/articles/list.asp -Ed '70FJ40 Date: Fri, 10 Dec 2004 20:48:37 -0700 From: Floyd Bufkin To: Land Cruiser Mailing Subject: Re: [LCML] Speaking of welders and juice Reply-To: Land Cruiser Mailing scott urquhart wrote: > Yes it can be done. I used to have to use the welder in the logging > camp to jump start the tank drills. It is a scary thing to do so I do > not recomend it. I remember when I worked at the coal mine, the guys would pre heat engines by clamping arc welder leads to the engine and turning up the juice. It worked fast too. Funny thing is, I never saw one of them do this to his personal vehicle. Floyd Date: Fri, 10 Dec 2004 23:06:02 -0700 To: Land Cruiser Mailing From: John Subject: Re: [LCML] Speaking of welders and juice Reply-To: Land Cruiser Mailing 08:48 PM 12/10/04, you wrote: >scott urquhart wrote: > >>Yes it can be done. I used to have to use the welder in the logging camp >>to jump start the tank drills. It is a scary thing to do so I do not >>recomend it. >> >> >I remember when I worked at the coal mine, the guys would pre heat engines >by clamping arc welder leads to the engine and turning up the juice. It >worked fast too. Funny thing is, I never saw one of them do this to his >personal vehicle. > >Floyd Howdy! I wonder if the mine equipment was diesel instead of gas powered. Wouldn't that make it a little more "spark resistant". And, of course, they didn't have to depend on driving the mine equipment home at the end of the shift. 8^} JoHn Bricker 76 FJ-55 Safari Grade all around Phoenix, Az. Date: Sat, 11 Dec 2004 07:13:51 -0700 From: Floyd Bufkin To: Land Cruiser Mailing Subject: Re: [LCML] Speaking of welders and juice Reply-To: Land Cruiser Mailing John wrote: > Howdy! I wonder if the mine equipment was diesel instead of gas > powered. Yes, big stuff. D9 and 988 Cats. Stuff like that. Sometimes very hard to start when it is really cold. Floyd Date: Sat, 11 Dec 2004 10:09:26 -0700 To: Land Cruiser Mailing From: John Subject: Re: [LCML] Speaking of welders and juice Reply-To: Land Cruiser Mailing >Yes, big stuff. D9 and 988 Cats. Stuff like that. Sometimes very hard >to start when it is really cold. > >Floyd Howdy! Yup, those might be a tad large to drag around the barn lot with a one-lung John Deere or a multi-fuel Farmalls to get the juices flowing. Seems like my dad could make throttle adjustments from the side of the engine so he didn't have to run back up on top when he was hand-cranking that old rascal. He always kept one tractor parked in the cattle shed in hopes that the heat from the livestock would make it a bit easier to start in the winter time. Landcruiser content: My Piggy still has the hand-crank mounted under the back seat, although it doesn't do much good on a 350 Chevy small block 8^} JoHn Bricker Date: Sat, 11 Dec 2004 15:13:50 -0800 From: Mark Subject: Re: [LCML] Speaking of welders and juice To: Land Cruiser Mailing Reply-To: Land Cruiser Mailing > I remember when I worked at the coal mine, the guys would pre heat > engines by clamping arc welder leads to the engine and turning up the > juice. It worked fast too. Funny thing is, I never saw one of them do > this to his personal vehicle. Ya, magnetic cranks and blocks are great for engine longevity. Mark J