186 Section 2 Nonstructural Repairs Copyright Goodheart-Willcox Co., Inc. panel to raise the low area. The pick needs a surface to rest against for leverage. Be sure this surface is strong. Figure 9-25 shows how this process works. Sharply pointed picks can easily pierce or stretch metal. Be careful. Round picks are less likely to pierce, but they can still stretch the metal since the force is concentrated in a small area. A pry pick is effective for raising small low areas. One difficulty in using the pry pick is positioning the pick to raise the correct spot. This requires good eye/hand coordination, because when the pick is placed inside the panel, it is hidden from view. Unin- tentional raising of an undamaged area will cause stretching. To test for the correct location, insert the pick and slightly raise the metal. Watch for movement on the outside of the panel. Adjust the location of the pick as needed to raise the right spot. Carefully push the metal out with the pick. Gradually restore the crown, starting at the ends and working toward the center of the damage. Raising a single point from the center of the low area can cause problems on a high-crown panel. See Figure 9-26. Attachments can be glued to the painted panel’s low spot. The attachments can be pulled with a bridge, a slide hammer, or hydraulic power. Another way to raise metal is to use welded-on draw pins. This method does Goodheart-Willcox Publisher Figure 9-24. When leveling with a hammer and dolly, tap on the highs and lows to vibrate the metal. Dolly A B Corrective force Goodheart-Willcox Publisher Figure 9-25. A pry pick can be used to raise low areas. The pick uses the inner panel for leverage. This setup can easily stretch metal, so raise the low area gradually. Outer panel Normal contour Inner panel Pry pick Goodheart-Willcox Publisher Figure 9-26. Raising the panel at point A will not restore the crown. Instead, raising at point A will tend to form a straight line between point A and points B and C. This may raise point A to the proper height, but it will not restore points B and C. To restore crown, raise points B and C then gradually work toward point A. This requires some stretching of the metal. A B C