50 to 75 CCA would be an odd duck for sure. The smallest lawn mower batteries are usually 160 CCA. The old rule of thumb always used to be that a starter will draw around 200-250 amps for a v8, 150-200 for a 6 and 100-150 for a 4. The battery doesn't determine how many amps a starter will draw. It's likely that 50 CCA won't even turn the engine on most applications. I've heard of people using 12 volts on 6 volt starters having trouble breaking inertia type starter drive springs but never from too many cranking amps. Doesn't make sense to me. I've been using 12 volts on my 6 volt Farmall M starters since the late 70s and have only broken 1 starter spring.
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Today's Featured Article - My Ford Golden Jubilee - by Troy Estes. This article is about my '53 Ford Jubilee and a story that starts with taking the tractor to my brother's Starter/Alternator Rebuilding shop for a wiring fix. The generator was shot as well as all the wiring. I dropped off the tractor expecting a transformation from a 6 volt to a 12 volt system utilizing the original generator housing, and a total rewiring of the whole tractor. The front end center pin bushing was worn also so I ask that they replace it if they had time. Well, that’s wha
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