How do you plan to do the high pressure oil seal
  to the CS hyd prop Doug?

  Paul Lamar ...No rotor no motor.

  Paul & Doug,
  If I might interject, the way several systems are handling the high
  pressure connection to the prop shaft is to put a plain bearing surface
  on the shaft and compareable inlet holes on the shaft and exterior
  bearing. If the housing is wet you don't put seals on it at all, rather
  you let the oil exit the plain bearing like all the rest, The volume
  won't be high. The typical low pressure end seal and at most an oil
  flinger are all that is needed. Marcotte has been doing this on their
  system, and I've seen several others in the works. The only thing
  against this system is that you must have the room for a 1 to 1-1/2"
  wide bearing on the exterior of the shaft. I'm supprised Tracy hasn't
  done one. He could extend the front bearing just a little and groove the
  exterior bearing with a second feed from the governor. Perhaps there's
  no room in the housing.
  Bill Jepson

  Here are some pictures about what Bill is talking about.

  Paul Lamar

Paul,
 I favor the second picture, OR an exterior bearing that is grooved at
the transfer area. You do not have to have a bearing anywhere near as
long as the Lyc front bearing, UNLESS you plan to cary the prop loads
also. If you use exterior bearings (ball or plain) for the loads the
"transfer" bearing needs only be about 1 inch wide if closely fitted
(.0005-.001 in.) or a bit longer if you increase that number by half.
Bill Jepson

Better knock out a 3D Bill.

Paul Lamar

OK Paul,

I haven't shown the housing, but the housing would be bored through
with a press fit for the plain bearing. The end bearings would be preloaded
with a nut and bellville. I believe you show that method on the website
Paul.
The housing could also be split if desired.
Bill Jepson


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