Bronco L6-300 4.9L VIN Y 1-bbl (1983)
For ease of identifying, the Radio Shack Model 63-851, 30X, lighted, magnifier is recommended.
1.
Ferrous Metal
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Light colored vehicles: Small rust orange dots with black in center of stain.
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Dark colored vehicles: Small white or silver dots with a "rainbow hue" around the particle. The surface will also feel rough to the touch.
2.
Industrial Fallout
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The surface feels rough to the touch and may exhibit crystalline deposits.
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Usually ferrous metal is present, as well as water spots.
