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| Small Ring gear to use in a electric revers setup ? http://locostusa.com/forums/viewtopic.php?f=4&t=19250 |
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| Author: | B85 [ January 26, 2018, 5:56 pm ] |
| Post subject: | Small Ring gear to use in a electric revers setup ? |
Looking for a starter ring gear that is 4" to 5" max diameter for a electric revers system. Could be from a electric start ATV,UTV,motorcycle,lawn tractor,or ant thing. Any ideas where to look ? Thanks, Randy |
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| Author: | cs3tcr [ January 26, 2018, 8:02 pm ] |
| Post subject: | Re: Small Ring gear to use in a electric revers setup ? |
Randy, Martin (mgkluft) used a Ski Doo part: http://www.locostusa.com/forums/viewtopic.php?f=35&t=14520&start=90 |
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| Author: | B85 [ January 26, 2018, 8:15 pm ] |
| Post subject: | Re: Small Ring gear to use in a electric revers setup ? |
Thanks, I read that. Wonder what the OD was ? I maybe looking for a gear that is too small ? 5" or less ? Trying to get back on the Lotus 11/15 project. |
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| Author: | BHRmotorsport [ January 26, 2018, 8:59 pm ] |
| Post subject: | Re: Small Ring gear to use in a electric revers setup ? |
B85, Try going to a small engine repair shop and see what they've got available in their scrap heap from a Briggs and Stratton or Tecumseh engine that was electric start. You could probably get the matching starter/drive gear for next to nothing too. |
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| Author: | B85 [ January 26, 2018, 9:24 pm ] |
| Post subject: | Re: Small Ring gear to use in a electric revers setup ? |
Going to try that Saturday,good idea. Was also think UTV,jet ski and the like ? |
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| Author: | Acerguy [ January 26, 2018, 9:40 pm ] |
| Post subject: | Re: Small Ring gear to use in a electric revers setup ? |
I've spent some time looking into this and the starter motors and ring gears for some small tractors (John Deere, Cub Cadet, etc.) look promising. I think they may be a bit larger in diameter than what you're looking for however. |
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| Author: | B85 [ January 26, 2018, 9:43 pm ] |
| Post subject: | Re: Small Ring gear to use in a electric revers setup ? |
Found the guy's in the UK, (lynx) now just need to get a reply ? |
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| Author: | mgkluft [ January 27, 2018, 12:00 am ] |
| Post subject: | Re: Small Ring gear to use in a electric revers setup ? |
Thanks, Rod. The diameter is about 7 1/4" and it was off a 1976 Skidoo. A purely lucky find off Ebay. Randy, I think one of the things to consider is the relationship between the Bendix and the ring gear. Once I found the gear, which was only about $ 40, I did some cross checking, and I found out that the Skidoo Bendix was nearly identical to the SBC starter motor that I found. I can give you some more exact specs if you need them. From a a practical experience, I think that you will find a small engine gear and starter motor to be under powered. My gear is 7 1/4" in diameter and the starter motor is rated at 3.5 hp, and it takes that much to move the car. https://www.youtube.com/watch?v=TdObULcKL94&t=3s |
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| Author: | B85 [ January 27, 2018, 1:15 am ] |
| Post subject: | Re: Small Ring gear to use in a electric revers setup ? |
Martin, your famous I say you on YouTube. Any all all info would help.PM or post is good. I have been looking at your build and think I can make it fit ? The 7 1/4 is going to be the hard part. Hope I can get something from the guys in the UK but we will see ? Is you starter a gear reduction ? Also have been thinking about some kind of soft start system ? Here is the space I'm working with.  And thanks for the help and imput. Randy |
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| Author: | mgkluft [ January 27, 2018, 1:56 pm ] |
| Post subject: | Re: Small Ring gear to use in a electric revers setup ? |
Randy, this is the starter that I used; it is 3 hp not 3.5, so no burgers for lunch, before backing up. https://www.ebay.ca/itm/SBC-BBC-CHEVY-3 ... dF&vxp=mtr The bendix gear is 1.165" OD, and 9 teeth. Here is a good candidate for a ring gear. Don't know the diameter, but it looks about right. Check with the vendor. The center can be machined off, and a mounting plate made to be sandwiched between the flange and the u-joint. https://www.ebay.ca/itm/Yamaha-Snowmobi ... Ui&vxp=mtr I had thought about a soft start, but couldn't find something suitable. Don't know if that would make it more user friendly; it is not the most elegant drive system to begin with, however, it works just fine as it is. My daughters would rather that I don't back up; it sounds too embarrassing, Dad  I find, that with the roll cage, it is just as easy to push the car back. I only use the reverse when I'm already strapped in or in an emergency. |
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| Author: | B85 [ January 28, 2018, 12:13 am ] |
| Post subject: | Re: Small Ring gear to use in a electric revers setup ? |
Thanks. Found a 5 1/2" gear out of the R1 and will see if I can use it ? |
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