Full Version : Body work
whtractor >>sheet Metal Modification >>Body work


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tickster- 01-17-2008
Karl feel free to move/remove this thread...but thought I'd see if some of are body work gifted members "not me" would like to try & take a stab at some basic body work how to's with pics & some captions? whtractor/whistling2.gif
Like tips & tricks for straighting a grill...takeing dents out?
Nothing complex...just simple stuff the average guy might try who does not have the knowledge. whtractor/not_worthy.gif

nylyon- 01-17-2008
This is a great idea, hopefully it will turn into one of those FAQ's. Thanks for suggesting!

Kelly- 01-17-2008
I've been doing body work for almost 25 years I'd be glad to help. I have a project coming up soon that needs some body work I will post pics, Body work is not rocket science you just have to have patience and take your time. A few basic tools, I've made many of mine over the years. Dollies, No not the ones little girls play with, blocks of steel that have different shapes to fit the many shapes of the parts you are working on, one or two body hammers, at work I use mainly one for most jobs, a metal file, larger the better. a small grinder not the kind with the stone wheel, one with a plastic or fiber back that takes 24 or 36 grit disk, you can use the flaper style but not as good. take an old hood or fender that you don't care about and If it dosn't have a dent in it, put one in it, not to big and pound it out many little hits is better than one big wack work from the outer edge going in. get it close and slap some bondo on it. The metal is think on the older horse's and with a little skill you can metal finnish no bondo, but that takes lots of practice, I spent 6 hours bumping a fender for my Raider 12 but I made sure all the factory press marks were there, just like new but better. Any questions please just ask. Kelly in MI.

combatmp29r- 01-19-2008
Kelly, It was brought up in Eldon's C-520 hood thread about plastic body on our horses. What is your opinion on the subject. Will in hold up on our vibrating toys, or do we need to use something else to fill the voids and smooth the fininsh?

Stigian- 01-19-2008
Good question Joel, and one ive been wondering about since repainting my Raider 10 whtractor/scratchhead.gif
I think the main reason i didnt fill all the rust er.. craters on the hood, was for fear of it cracking sad.gif
Im not keen on filler... Hhhmm well maybe its the rubbing down of filler that im not keen on wink.gif
I guess a lot of you guys fill (sorry) feel the same wink.gif

TT- 01-19-2008
Filler is great for hiding the pits and tiny imperfections in the metal, and if used sparingly, should be alright. I like to use high-build primers for that job, but you must be sure to let them cure for a while before applying the final paint. (the solvents must have time to evaporate and the primer will shrink some -- potentially resulting in defects showing up in the top coat later down the road.)

When I cut and sectioned the grille for my son's Commando 7, I tried to do as much as I could to limit the use of filler of any sort. When you're talking about a 10 year old kid handling a hood, plus actually driving the tractor EVERYWHERE, you become less fussy in a hurry. I did use a very light skim coat of plastic filler to cover the rougher areas, but most everything else was handled by a high-solids primer/surfacer over a base coat of etching primer. (I actually prefer Dupli-Color "rattle can" etching primer that I buy at NAPA)
He beat the snot out of that tractor for 3 years and I never saw signs of cracking or lifting of the filler. All I can add is to spend as much time as you can with the metal. Fillers -- especially plastic -- are not made to fill dents more than 1/8" deep, but I have seen it as thick as 1 inch in some "short-cut" repairs. As soon as moisture gets behind plastic filler, you have problems. Use a waterproof filler such as Dura-Glas first, to help seal the surface. (not normally needed if it's solid metal requiring dent/pit removal only.)
Buy or build various shaped dollies and body hammers if you can, but you can also use what ever you have laying around. I have a 120 lb. anvil that helps me out a lot in the fabrication of metal, and I have a custom made "spoon" dolly that I use to reshape the round hood grille bars too. A heavy sandbag is also used as a "backer" for certain hammer work instead of a solid surface. A lot of times I actually work the grille bars and other similar areas while holding them against my leg! whtractor/thumbsup.gif
A metal file is nice to have around too (for knocking down high spots) as is a tool we used to call a "slap hammer", which is nothing more than a large rough-cut hand file, heated and offset bent in the center with a piece of strap steel welded to the back side for rigidity. It's used mostly for cold shrinking/leveling of metal, and the tiny nicks it produces will help the filler bond to the metal. It does require a solid dolly on the back side of the metal.
Heat shrinking is needed quite a bit on some of the more damaged sheetmetal and isn't really that tough to master. Use a small welding tip on an O/A torch and heat a small spot to a dark red-orange color. While the area is still hot, hit it with cold water. Repeat the process as needed, and keep moving around the damaged area. (Supposedly the molecules in the metal will realign and condense, tightening the metal.) All I know is that my shop teacher showed me how to do it, and it works. whtractor/dunno.gif It can even help take the "oil can" effect out of the top of a hood if you're careful with the heat. whtractor/thumbsup.gif
Well, you guys are lucky....... it's supper time here and I'm gonna quit typing!
That was more than enough to bore you with for a while anyhow. biggrin.gif

combatmp29r- 01-19-2008
Thanks for the input Terry. On the V18 I did all the metal work with careful fitting dolly work and a little lead. I need to smooth the top of the hood (looks like the moon) where its rust pitted. It has etching primer on it now, but I don't think I can ecnomically spary enough coats of primer/surfacer to fill them whtractor/scratchhead.gif

i was planning on skim coating it , but wanted a few opinions from guys who know more about it than I do. I worked 2 summers in one of the local body shops back home in high school, but never did any body work on a tractor biggrin.gif

Greg B.- 01-19-2008
If one gets them really clean (reference the electrolytic process being discussed over on WFM) pits can be filled and leveled with a skim coat of body solder. I did that on a 34 Ford hood and it worked like a champ.

That heat shrinking technique is an excellent trick to know, as well.

Greg B.

Buzz- 02-19-2008
Here's a link to two sites discussing the electrolytic method. I never tried it myself but looks interesting. Maybe someday......... Did anyone here ever try it?

http://antique-engines.com/electrol.asp

http://www.htpaa.org.au/article-electro.php

PetesPonies- 03-15-2008
you can ask any question you have about body work, welding, filler, or painting to me. I do it all with Mustang restorations.

nylyon- 03-15-2008
Great, where were you when I was replacing the floor boards and rockers on by 68 convertible? cool.gif

HorseFixer- 06-10-2008
QUOTE (Buzz @ February 19, 2008 10:19 pm)
Here's a link to two sites discussing the electrolytic method. I never tried it myself but looks interesting. Maybe someday......... Did anyone here ever try it?

http://antique-engines.com/electrol.asp

http://www.htpaa.org.au/article-electro.php

Good info buzz hafta give that a try! whtractor/whistling2.gif

Duke

sorekiwi- 07-05-2008
QUOTE (HorseFixer @ June 10, 2008 11:28 pm)
QUOTE (Buzz @ February 19, 2008 10:19 pm)
Here's a link to two sites discussing the electrolytic method. I never tried it myself but looks interesting. Maybe someday......... Did anyone here ever try it?

http://antique-engines.com/electrol.asp

http://www.htpaa.org.au/article-electro.php

Good info buzz hafta give that a try! whtractor/whistling2.gif

Duke

I throw most of my bits in an electrlytic tank. It works really well and is easy to do. Yesterday I threw in a frozen lift cable for a few hours and it came free.

I use a 5 gallon bucket, arm and hammer washing soda, and a 12V power supply. For the sacrificial electrodes I was using rebar, but have had better results lately by using a big piece of steel plate (about 6" by 12"). The bigger area seems to work a lot quicker.

I'm thinking about getting a big tank together that would be big enough to fit a complete frame in. With the 5 gallon bucket I can onlt dip each end!

With heavily rusted stuff it works best if you hit it with a wire wheel or some sort of abrasive wheel first, to get rid of the flaky stuff. Sometimes it helps to pull the parts out every couple of hours and wipe or hose the gunk off. The sacrificial plate needs the occasional clean up too. Getting good electrical connection is important too. I use a light buld between the power supply and the part so I can make sure the juice is still flowing.

jschahl- 07-09-2008
What do you use for your 12V supply? I've been toying with hooking up a model train transformer and setting up a electrolysis tank in a 10 gallon fish tank that I don't use anymore. When I was a kid, I used to have a CB in my room that I powered that way. Wired it to the transformer, and then turned it up until it was at about 12-13 volts. Just wondered what other people used. Trickle chargers? Full blown battery chargers? Other?

the light bulb is a good idea.... so you know when your contact is getting corroded.

jschahl- 07-23-2008
bump.... nobody?user posted image

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