In Reply to: 1948 8n starter posted by John McQuaid on November 18, 2017 at 16:54:51:
Do you have a 6-Volt battery or a 12-Volt battery and how is your battery? You need a good, fully charged battery to spin the starter. You need a fully charged battery that will sustain the charge under load. You can test specific gravity with a hydrometer or take the battery to your trusty local starter/alternator shop and they will bench test it usually for free. Bargain-house batteries have short life spans, 2 years or less has been my experience. Some fellas who 'convert' to 12-volts simply slap a 12-volt battery on. It will spin the starter faster, yes, but won't have a long life either. The starter shop can bench test the solenoid as well. Meantime, seek out Wiring Pictograms by JMOR in our HOW-TO's/Electrical for all the correct ways to wire these old N's.