I never had much luck repairing bad cutouts I gutted a few and installed diodes. It requires a small amount of soldering. Brattons sells a diode replacement with instructions for around six bucks, Snyders has a different diode conversion for two dollars and something. The diode is good for a twenty amp continious charge. I am running a diode conversionson my 31 tudor. It has performed well for the past 12 years. I run the Fun projects can style regulator on my roadster. It looks like the early 28 cutout. Here is a pictureof the can style voltage regulator on my roadster.
