Pick-Up Coil Air Gap

Check trigger wheel and pick-up coil assembly for damage. Check air gap between trigger wheel and pick-up coil. If air gap is not within specification, replace distributor (if pick-up coil cannot be replaced separately).
Check dwell angle and pick-up coil air gap and compare with specifications. See DWELL ANGLE & AIR GAP SPECIFICATIONS table in this article. If dwell angle and air gap are not within specifications, check pick-up coil resistance and for short. See PICK-UP COIL RESISTANCE CHECK and PICK-UP COIL SHORT CHECK in this article. If okay, replace electronic control module.

DWELL ANGLE & AIR GAP SPECIFICATIONS

Application

Dwell Angle (Degrees) At 1500 RPM

Air Gap In. (mm)

Audi 5000

43-65 ⁽¹⁾

.010 (.25)

BMW

32-52

.016 (.41)

Fiat

⁽²⁾

Mercedes-Benz

280 Series

33-51

⁽²⁾

450 Series

25-39

⁽²⁾

6.9

30-35

⁽²⁾

Peugeot 604

Cylinder 1, 2 & 3

41-64

⁽²⁾

Cylinder 4, 5 & 6

25-34

⁽²⁾

Porsche

911S & Turbo

⁽²⁾

924

52-70

.010 (.25)

928

25-39

.010 (.25)

Saab

60-80 ⁽¹⁾

⁽²⁾

Volkswagen

1979 Type ⁽²⁾

⁽²⁾

Volvo

4-Cylinder

33-63

⁽²⁾

6-Cylinder

45-63

⁽²⁾

⁽¹⁾	No speed specified by manufacturer.

⁽²⁾	Specification not available from manufacturer.