Posted by DR. EVIL on April 11, 2021 at 10:56:44 from (174.192.70.219):
In Reply to: Re: Onan HELP posted by wisbaker on April 11, 2021 at 08:06:17:
You're close, but the reduction gears are WAY more than 3:1 reduction. I have the exact tooth count of each reduction gear in my parts book and Midwest SuperCub catalogs, plus MWSC makes several different over-drive ratio reduction gear sets up to +25% OD, But the reduction gears reduce 3600 engine RPM to 515 RPM with the rear transmission driven PTO which means the reduction gears are 7:1 reduction, 12 tooth driving 84 tooth, But You're talking KOHLER engines and Gramps is playing with ONAN'S. And I'm about 99% sure he's hooking up to a hydro rearend in the Case. Even a Cub Cadet hydro does not have reduction gears.
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