Ford ES — SILICON CONTROLLED

For the Ford ES.

Procedure

1. Connect one ohmmeter lead to each end of diode
2. Reverse ohmmeter leads and again observe re-
3. Replace defective diodes with new, identical
4. Wires 1-2 and 3-4 are wound on thesame iron core.

Specs & torque values

CR14, and CR15, are located on the voltage regulator
printed circuit board. Using an accurate ohmmeter,
Using a 6 volt dry cell battery and a 200 ohm

Source: manual:0900-0335_Service Manual Ford Engine Detector I1_198207.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.