Mailing List flyrotary@lancaironline.net Message #34693
From: Ken Welter <rotary.coot@verizon.net>
Subject: Re: [FlyRotary] redrive lube
Date: Wed, 06 Dec 2006 00:35:13 -0800
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Re: [FlyRotary] redrive lube
   Tracy,s gearbox has plain bearings on the prop shaft so it needs a high flow high pressure oil system to lube them, also being the planet is spinning on the 2.85 its throwing the oil away from it so the planet bearings could get starved so I think it needs an oil jet pointing an oil steam at them so you would not need a real high pressure high flow system to lube them, if you had needle bearings on the prop shaft they would need a minimal of oil as all I use on my cog belt unit is just an oil bath as you mentioned.
 I plan on using 0-40 Mobil One synthetic oil with an electric pump on my Dodge 3.21 redrive.
  Ken




i am asking this question with only the experience back in college years of putting a buick v-6 in a 1953 willys, no race car experience etc......
 
auto transmissions have special fluid and coolers because of the torque converters, right?  manual transmissions just have gear lube, which, it seems, you put in and basically forget about.  what is different about the PSRU redrive from a manual transmission?  why can't it be self-contained with gear lube and forgotten?  are planetary gears different from a manual transmission?  are they fed with an oil flow and coolers in trucks?  i'm sure all of this has already been answered and thought out.  ken said he keeps his redrive lube separate from the dirty engine oil.  why are tracy's redrives plumbed as part of the engine oil flow?   kevin (just curious)

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