Correctamundo. Get it clean so solder will stick. Clean the area to be soldered with brush or somehow. Use acid core solder or acid flux. Heat the copper up well and it will do the whole job in one heating.
One of the gas tank repair places like in Hemmings can do the welding if anyone really wants welding per se. Otherwise, do not try this at home. We are professionals. Ha ! ed >Date: Fri, 22 Jan 2010 12:02:03 -0600 >From: "R A Bennell" <b...@mts.net> >Subject: Re: [MBZ] Fuek leak/Fuel tank repair > >My father used to do this sort of thing as well. Not commercially, but I do >recall him soldering tanks that leaked. > >I think the primary concern is getting the area clean enough for the solder to >stick properly. My guess is that >what you want is the flux - essentially acid - that was used when soldering >eavestroughing back when it was >galvanized steel instead of aluminum or plastic. Wipe that stuff on and it >would eat anything that might cause >trouble. Then the solder joint would stick pretty good. > >Randy > >-----Original Message----- >From: mercedes-boun...@okiebenz.com >[mailto:mercedes-boun...@okiebenz.com]on Behalf Of Robert Bigham >Sent: Friday, January 22, 2010 11:54 AM >To: mercedes@okiebenz.com >Subject: Re: [MBZ] Fuek leak/Fuel tank repair > > >Hello All > >The safe way to repair a fuel tank is with soft solder and an old-fashioned >soldering copper. > >In this process, there need not be fire anywhere near the tank, there is no >spark ever, and the temperature of the >tank can be moderated with partial water fillingor sponging with water similar >to in bodywork welding. > >One of my many old bosses used to do this a lot. It was something of a trade >secret to him; he would not allow >outsiders to actually see him do it. He used to cackle about how much money he >could get for so little work on tank >repair. But he used to cackle about a lot of things. > >Stay away from fuel tank welding; it's too dangerous. > >Regards ed > > >> 3. Re: fuel leak (Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC, 53310) >> 4. Re: fuel leak (pm7...@comcast.net) >> 6. Re: fuel leak (R A Bennell) >>Message: 3 >>Date: Tue, 19 Jan 2010 14:21:50 -0500 >>From: "Dillon, Meade M CIV SPAWARSYSCEN-ATLANTIC, 53310" >>Subject: Re: [MBZ] fuel leak >> >>Another trick that I've heard about but never witnessed is called >>'pressing up' the tank, whereby you fill it with water so that the fuel >>is pressed up to the top of the tank, and then you weld so that the >>water gets heated and not the fuel. How do you keep the water leaking >>out of the break from mucking up your welding? I don't know... >> >>-Max >> >>>[mailto:mercedes-boun...@okiebenz.com] On Behalf Of Jim Cathey >>Sent: Monday, January 18, 2010 9:14 PM > >>Subject: Re: [MBZ] fuel leak >> >>> What do I use to weld this? Torch? >> >>Fuel tank welding is rather tricky. I've done it. The secret >>ingredient is a lawnmower putting away filling the tank with non-oxygen, >>and keeping it that way. >> >>I don't really recommend it. >> >>-- Jim > > >>Message: 4 >>Date: Tue, 19 Jan 2010 19:57:00 +0000 (UTC) >>From: pm7...@comcast.net >>Subject: Re: [MBZ] fuel leak >> >>Oh my, this is going to require ear plugs so the large BANG does't scare you >>too much. >> >>Than of course there is all the hollering and screaming that comes from burn >>victims. >> >>I've used epoxy with good results, not as dramatic of course.... >> >> >>-- >> >>Peter Arnold >> >>Windsor, CT >> > > >_______________________________________ >http://www.okiebenz.com >For new and used parts go to www.okiebenz.com >To search list archives http://www.okiebenz.com/archive/ > >To Unsubscribe or change delivery options go to: >http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > > > >------------------------------ > >Message: 13 >Date: Fri, 22 Jan 2010 12:05:37 -0600 >From: Fmiser <fmi...@gmail.com> >To: Mercedes Discussion List <mercedes@okiebenz.com> >Subject: Re: [MBZ] OT '95 E300 project - OM606 fun (was oscope) >Message-ID: <20100122120537.a61ca2c7.fmi...@gmail.com> >Content-Type: text/plain; charset=US-ASCII > >> Curt Raymond wrote: > >> I think Marshall said heat and time and that heat was a >> function of RPM and load. > >> IIRC Marshall suggested getting some big friends to ride in >> the backseat while you drove up big hills... > >Hmm. That requires big hills. And friends.... > >-- Philip > > > >------------------------------ > >Message: 14 >Date: Fri, 22 Jan 2010 13:12:24 -0500 >From: "Allan Streib" <str...@cs.indiana.edu> >To: "Mercedes Discussion List" <mercedes@okiebenz.com> >Subject: [MBZ] looking at '87 300D >Message-ID: <1264183944.22213.1356069...@webmail.messagingengine.com> >Content-Type: text/plain; charset="us-ascii" > >Well I had said that I was not buying any cars this year but I'd seen this >W124 sitting in a yard with a for sale sign for a while. I had some time this >morning so I stopped to look at it. It's an '87 300D with (if the odo is >correct) about 173K miles. > >Nobody was around so I noted the phone number. The car looked solid, no >visible rust, but paint was flat on the hood. Interior looked decent, no rips >or obvious abuse. > >If I were to look at this more closely, anything in particular I should be >alert to? > >Asking %5,000 obo. Seems a little high... considering it's been for sale for >a while now. What are these going for these days? > >Allan >-- >1983 300D > > > > > >------------------------------ > >_______________________________________ >http://www.okiebenz.com >For new and used parts go to www.okiebenz.com >To search list archives http://www.okiebenz.com/archive/ > >To Unsubscribe or change delivery options go to: >http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > >End of Mercedes Digest, Vol 50, Issue 132 >***************************************** _______________________________________ http://www.okiebenz.com For new and used parts go to www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
