Dwell Angle Check And Visual Check Of Pick-Up Coil Assembly
Check trigger wheel and pick-up coil assembly for damage. Also check visually for 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 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 |
Air Gap |
| BMW |
32-53°@1500 RPM |
.014-.028" (.36-.72 mm) |
| Fiat Strada & X1/9 |
|
.011-.019" (.3-.5 mm) |
| Mercedes-Benz |
| |
280 Series |
33-51°@1500 RPM |
|
| |
450 Series |
25-39°@1500 RPM |
|
| Peugeot 604 |
| |
Cyls. 1, 2 and 3 |
41-64°@1500 RPM |
|
| |
Cyls. 4, 5 and 6 |
25-34°@1500 RPM |
|
| Porsche |
| |
911SC |
|
|
| |
924 |
52-70°@1500 RPM |
.010" (.25 mm) |
| |
928 |
25-39°@1500 RPM |
.010" (.25 mm) |
| Saab |
60-80° |
|
| Volvo |
| |
4-Cylinder |
45-63°@1500 RPM |
|
| |
6-Cylinder |
45-63°@1500 RPM |
|