Dwell Angle Check And Visual Check Of Pick-Up Coil Assembly
- Visually check trigger wheel and pick-up assembly for damage. Also check air gap between trigger wheel and pick-up coil. See Figure.
- If damaged or if air gap is not to specifications, replace distributor (if components cannot be replaced individually).
- Check dwell angle, and compare it with specifications. If not within specifications, repeat Pick-Up Coil Resistance, Short, and Visual Checks. If OK, then replace control module.
DWELL ANGLE & AIR GAP SPECIFICATIONS
| Application | Dwell Angle @ RPM | Air Gap In. (mm) | |||||||
|---|---|---|---|---|---|---|---|---|---|
| BMW | 32-53°@1500 | .014 -.028 (.36 -.72) | |||||||
| Fiat | 1 | .012 -.019 (.3 -.5) | |||||||
| Mercedes-Benz | 7-25°@ 2 | 3 | |||||||
| Porsche | |||||||||
| 911 SC | 1 | 1 | |||||||
| 928 | 25-39°@1500 | 1 | |||||||
| Volvo | |||||||||
| GLT Turbo | 45-63°@1500 | 1 | |||||||
| GLE | 45-60°@1500 | 1 | |||||||
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