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Most Advance Design Era (1947-1955) truck owners do not realize the importance of knowing the number of teeth on their flywheel's ring gear. This is because these years were the last years for the 6 Volt Electrical System. In 1955, Chevy went to 12 Volts. In doing so, they also redesigned the Starters drive assembly and changed the number of teeth on the ring gear. This complicates matters when going to the Auto Parts to get a replacement starter. To complicate things further, you never know if the previous owner changed the flywheel when they went to 12 volts. This is because the 6 volt starter is made so well, it works very nicely with 12 volts applied to it. In fact, the starter turns faster if its 6 volts with 12 volt system. To make things even more complicated, you can't tell easily of you have a 6 or 12 volt starter just by looking at it. They both have the same number of teeth, but they are pitched differently to work with their respective ring gears.
To UNcomplicate things is what we are all about here at devestechnet.com. So, count the number of teeth on your flywheel. 4 teeth per inch or 139 teeth total is a 6 volt flywheel made prior to 1955 and requires a 6 volt starter. 5 teeth per inch or 168 teeth total is a 12 volt flywheel. It's important for you to know which one you have so the next time you need a starter, you are not trying the new one hoping its right for your truck. The wrong starter will grind and even if it does engage it will not make it through a full rotation without binding and overheating. You can read all about the particulars of this issue here:
www.devestechnet.com/Home/Flywheel
Seeya next week!
To UNcomplicate things is what we are all about here at devestechnet.com. So, count the number of teeth on your flywheel. 4 teeth per inch or 139 teeth total is a 6 volt flywheel made prior to 1955 and requires a 6 volt starter. 5 teeth per inch or 168 teeth total is a 12 volt flywheel. It's important for you to know which one you have so the next time you need a starter, you are not trying the new one hoping its right for your truck. The wrong starter will grind and even if it does engage it will not make it through a full rotation without binding and overheating. You can read all about the particulars of this issue here:
www.devestechnet.com/Home/Flywheel
Seeya next week!