Well . . . sometimes you can, but it's a rare circumstance.
A 12 volt starter motor is designed to work properly at 9-10 volts. Some cars/trucks with light-duty direct-drive starters can be made to have problems when greatly over-batteried and cranking voltage gets up near 12 volts. But, that's pretty hard to do.
One example is my 64 SS Chevelle with a 327. Due to high compression pistons, over-advanced timing specs with a hot cam etc. it was a hard cranker at times. Since I had many big batteries around, I got the bright idea to install two huge tractor batteries in the trunk with 2/0 cable running up front. Cranking voltage jumped from 9.5 up to 11 volts. It made a huge difference in cranking speed. But - no matter what I did, I could not get the Delco starter drives from breaking. Finally went back to one battery and no more failures. Eventualy, I installed a gear-drive starter.
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
... [Read Article]
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1964 I-H 140 tractor with cultivators and sidedresser. Starts and runs good. Asking 2650. CALL RON AT 502-319-1952
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