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I’m having issues with my voltage regulator and was wondering if anyone could shed a bit of light on this.
I have cleaned, and reset this controller to factory spec. The condition is very good with no indication of damage. I have also backed out both regulator, and cut-out adjustment screws completely. I have previously installed a VDO voltmeter to which I’m getting my readings. Its been tested and is correct.
The problem is when hooked-up I’m getting a reading of 12, sometimes a bit below, on a cold motor at idle. When I gradually increase the RPMs it will go all the way to 16, which is the max for the gauge. I have set the regulator adjustment screw to fully screwed in, other wise it will set at a tad below 12 with no increase in the voltage when the RPMs are increased. The cut-out adjustment has no affect fully in, between, or out.
A friend let me install his new controller and I got the same reading of 12, sometimes a bit below, on a cold motor at idle with an increase of the RPMs pushing it to 16. Both voltage screw adjust and cut-out adjust were not touched and left at the factory settings.
The way I deal with this is when the motor is warmed up I run my headlights which sets the volts to 11.5 - 12 at idle, and goes to 12.5 - 13 at 3000+ rpm. Its the stop and go traffic that’s slowly draining by battery. After I have trickle charged my battery I can go for a day and a half before my battery poops out.
1964 Mk1-1/2 Midget.
1275: 12CD-DA-H-11092
Controller: Lucas (spade.) Moss #542-100
I have cleaned, and reset this controller to factory spec. The condition is very good with no indication of damage. I have also backed out both regulator, and cut-out adjustment screws completely. I have previously installed a VDO voltmeter to which I’m getting my readings. Its been tested and is correct.
The problem is when hooked-up I’m getting a reading of 12, sometimes a bit below, on a cold motor at idle. When I gradually increase the RPMs it will go all the way to 16, which is the max for the gauge. I have set the regulator adjustment screw to fully screwed in, other wise it will set at a tad below 12 with no increase in the voltage when the RPMs are increased. The cut-out adjustment has no affect fully in, between, or out.
A friend let me install his new controller and I got the same reading of 12, sometimes a bit below, on a cold motor at idle with an increase of the RPMs pushing it to 16. Both voltage screw adjust and cut-out adjust were not touched and left at the factory settings.
The way I deal with this is when the motor is warmed up I run my headlights which sets the volts to 11.5 - 12 at idle, and goes to 12.5 - 13 at 3000+ rpm. Its the stop and go traffic that’s slowly draining by battery. After I have trickle charged my battery I can go for a day and a half before my battery poops out.
1964 Mk1-1/2 Midget.
1275: 12CD-DA-H-11092
Controller: Lucas (spade.) Moss #542-100
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