Rust repair Questions, Welding, cutting, POR15ing, etc. |
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Rust repair Questions, Welding, cutting, POR15ing, etc. |
rjames |
Feb 18 2006, 05:56 PM
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#1
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I'm made of metal Group: Members Posts: 3,954 Joined: 24-July 05 From: Shoreline, WA Member No.: 4,467 Region Association: Pacific Northwest |
Rust treating, killing, etc, and just want to get some input before I get to crazy with the MIG.
Here are some questions: I have some floor pan issues. Are the holes too big just to try and fill? The following photo is from the driverside, under the seat after the tar has been removed, and I've grinded down to bare metal. Should I advertise for someone who's cutting up a car to cut this pieces out for me, or should I just go buy some sheet metal and make a patch knowing it won't really match, but can at least be made to 'line up'? Attached image(s) |
elocke |
Feb 21 2006, 09:04 AM
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#2
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Member Group: Members Posts: 178 Joined: 9-February 03 From: Georgetown, MA Member No.: 272 |
I basically copied the factory layout. When I cut out the rusty stuff, I observed what the pieces looked like and how they connected and did it that way. This results in 3 layers at the interface of the back edge of the outer rocker, the inner layer, and the lower wheelhouse front edge.
I could have just slapped a thick piece over the rusted area or the long repair kit from RD but I was paranoid that I'd still rust from the inside out. Here are some methods I used as far as metal treatment goes. This could be the wrong way and I'm sure there are better ways. THere are several metal treatment products, all with their own +'s and -'s. At first I was spraying the entire repair piece with weld-thru primer. I'd strip as best I could the surface on the car that I was welding to and apply metal ready. Then I'd mask off the weld area, apply the primer, and weld. Then I decided to treat the entire patch piece with metal ready, mask off the weld area, apply weld primer, and weld. Weld thru primer is a pain to weld. It seems to me (right or wrong) that have to turn up the heat or weld for longer. So basically my thought was to use the weld primer at the weld joints and metal ready for the rest. My intension was then to spray the insides again with either POR15 or Eastwoods rust encapsulator, which I haven't done yet. I have a great Pelican article on drilling holes in the longs and spraying the insides with a wand. I'd love to hear some feedback on rust protection on repairs because I still have some doubts as to how I did it. Ed |