Usage:
- SUPPLEMENT: 08/27/79
SERVICE MAGAZINE, MAY 28, 1979, PAGES 1 AND 2. In the article "A New Method To Clean And Polish Engine Valve Stems", the meaning of the second sentence, "Formerly, solvent or vibratory cleaning were used on valve stems" is not clear. Solvent cleaning, glass bead cleaning (on head and fillet only), and vibratory cleaning are still acceptable procedures. The 6V2033 Brush is an optional cleaning method. For details of all methods, see Guideline For Reusable Parts, Form SEBF8002-01 "Valves And Valve Springs".
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A special 6V2033 Flap-type Finishing Brush is now available to clean and polish (make smooth) engine valve stems. Formerly, solvent or vibratory cleaning were used on valve stems.
The 6V2033 Brush is 8" (203 mm) in diameter and 2" (51 mm) wide. It is made of a fine grade abrasive that will not damage the valve stems. To operate the brush, you need a bench grinder with a speed of 1800 to 3200 rpm (maximum).
To fit the brush on the grinder, use two 6V2032 Adapters. If the grinder shaft is larger than .50" (12.7 mm), the holes in the adapters can be made larger. For instructions to use the brush and for information on different methods to clean valves, see Form SEBF8002-01 Guidelines For Reusable Parts-Valves and Valve Springs.
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Do not use a wire brush or glass beads on the stem area. Glass beads can be used on the head and fillet only (before you grind).
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The 6V2033 Brush can be used to clean and polish all Caterpillar inlet and exhaust valve stems.
