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Old 01-17-2014, 08:44 AM
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DanEC DanEC is offline
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Join Date: Apr 2009
Location: Little Rock area, AR
Cobra Make, Engine: ERA Street Roadster #782 with 459 cu in FE KC engine, toploader, 3.31
Posts: 4,519
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Default Some testing results

Too cold and windy right now to get the car out where I can run it but I have run through all of the continuity and voltage checks with the engine off.

1. Ignition on/engine off - voltage from Y/P wire at VR harness plug to VR ground - 12.5V

2. Voltage from Y/R wire in VR plug to battery (+) terminal - 12.7V

3. Verified all wires on alternator, VR plug and on fuse box are in the correct position.

4. Continuity W/B wire at VR plug to alternator connection for stator - Yes. Continuity to ground - No.

5. Continuity U/B wire at VR plug to alternator field connection - Yes. Continuity to ground - Yes??????

6. Continuity orange wire at alternator to fuse block at VR fuse - Yes. Continuity to ground - No.

7. Continuity through VR fuse - Yes.

8. Continuity of G/R wire at VR plug to dash light - Yes. Oddly, I have the parallel resistor wired in place and when I disconnected one wire from the light I only had continuity through one of the two leads. It seems like it should have circled through the resistor to the other side with the disconnected lead. May be nothing.

9. Anyone ever toy with testing continuity through a VR. On the solid state one I got no continuity between any of the terminals which may well be because of the solid state hardware.

On the Mechanical Regulator I have continuity as follows:

I to F and S

A none

S to F

F to I and S

Probably means absolutely nothing. I see nothing amiss inside the regulator such as poor solder joints or anything.

Does it seem right that the field connection off of the VR plug shows continuity to engine ground?

Thanks in advance for any observations from this.
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