Rust

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If a dent causes an area of bare metal to be exposed. To "hold" it so it won't rust until a paint job is ready to be done: gently bump out the dent, sand, rattle can primer, rattle can sealer.
 
If a dent causes an area of bare metal to be exposed. To "hold" it so it won't rust until a paint job is ready to be done: gently bump out the dent, sand, rattle can primer, rattle can sealer.
  
===Fixing rust holes===
+
====Fixing rust holes in body panels====
 
Grind down all the paint and rust from around the hole. Clamp a piece of copper to the other side (roof flashing, penny, etc.). Then, fill in the hole with a MIG welder. When done, unclamp the copper -- it won't stick to the panel. Also, it absorbs the heat, so the panel won't warp as much.
 
Grind down all the paint and rust from around the hole. Clamp a piece of copper to the other side (roof flashing, penny, etc.). Then, fill in the hole with a MIG welder. When done, unclamp the copper -- it won't stick to the panel. Also, it absorbs the heat, so the panel won't warp as much.
  
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What about drilling and patching pinholes?
 
What about drilling and patching pinholes?
  
===Removing rust in seams===
+
====Removing rust in seams====
 
A spot blaster is useful.
 
A spot blaster is useful.
  
 
To do it right, you will generally need to pull the seam apart, remove the rust, and then hit it with a rust conversion product. However, sometimes you can open up the layers slightly with a hammer and putty knife used between the spotwelds. Bend the flange open, media blast into the seam, clean, prime with epoxy primer, brush in urethane seam sealer, and close the seam back up. If the seam is not accessible, flood it with a penetrating cavity wax, like 3M's Rustfighter.
 
To do it right, you will generally need to pull the seam apart, remove the rust, and then hit it with a rust conversion product. However, sometimes you can open up the layers slightly with a hammer and putty knife used between the spotwelds. Bend the flange open, media blast into the seam, clean, prime with epoxy primer, brush in urethane seam sealer, and close the seam back up. If the seam is not accessible, flood it with a penetrating cavity wax, like 3M's Rustfighter.
  
===Rusted window channels===
+
====Rusted window channels====
 
Difficult to fabricate, need more info on this.
 
Difficult to fabricate, need more info on this.
 
===Leaf spring rust===
 
Remove rust, then, ideally, paint them separately. Re-assemble with teflon strips.
 
  
 
===Vinyl tops===
 
===Vinyl tops===
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How to prevent?
 
How to prevent?
 +
 +
===Leaf spring rust===
 +
Remove rust, then, ideally, paint them separately. Re-assemble with teflon strips.
  
 
===Cleaning light surface rust off crankshaft===
 
===Cleaning light surface rust off crankshaft===

Revision as of 18:23, 13 July 2007

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