Re: Electrical systems

Posted by HH56 On 2023/2/9 20:30:48

3.5 v when the points are closed would indicate either a bad ground to the distributor body or some resistance in the points. Ideally the voltage at the coil distributor terminal should be .5 volts or less when points are closed.

Make sure the distributor body to engine block clamp is clean and tight and then crank the car so the points are closed. Use your finger to open the points momentarily and insert a strip of coarse paper -- maybe something from a heavy paper sack or some other rough finish paper between the points. Hold the points gently closed with your fingers while pulling the paper strip thru a couple of times. This should clean off any oxidation that might have formed on the point contact surfaces.