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: 3,955 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) |
scotty b |
Feb 19 2006, 07:13 AM
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#2
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rust free you say ? Group: Members Posts: 16,375 Joined: 7-January 05 From: richmond, Va. Member No.: 3,419 Region Association: None |
Sorry about the delay, I had a dinner date last night (moms birthday) If you don't want to completely remove and replace the outer rocker (I'm sure you don't) you really should get someone to sandblast that upper edge to get the metal perfectly clean. Then you can very carefully weld up those small holes, but like I said before, be prepard to burn through alot! Take your time and don't let the metal heat up to much. OSPHO ia a phosphoric acid that attacks and neutralizes the rust, it also forms a barrier to prevent it from restarting. Been used in restoration shops for years. About $25.00 per gallon, and is water consitency so it can be sprayed through a cheap paint gun. First and foremost cut out the section around the jack post and look in the tunnel VERY well with a light to make sure the inner rocker isn't rusted through as well. If it is (IMG:http://www.914world.com/bbs2/html/emoticons/sad.gif) car is proably not werth fixing.As for the lines running inside the tunnel it is a cardboard(esque) tube and you need to be careful when cutting through the outer skin not to hit it. Most of the structural metal on these cars is 18 gauge whiile the body metal is 20 gauge (I think)ONe other thing on the OSPHO, if it is in an area you can easily access you would be best off to let it dry for a day, come back with a brush and some water to clean it with, this will neutralize the acid in it, and then paint over it with your etching primer to ensure a good repair.
Ospho link: http://www.ospho.com/directions.htm |