-------- Original Message --------
Subject: More PSRU oil leak
Date: Tue, 26 Jun 2007 16:19:38 -0700


Velocity 755V, with its 3-rotor 20B powerplant, has completed 40.2 hours of
flight, and is now released from Phase 1 operating limitations.

No need to clutter the list with congratulatory messages.  I appreciate all
the information that has come from this group, and the positive feelings out
there that go with the achievement of this milestone.

Al

Great Al. You would not be planning on going to OSH would you?
Paul Lamar ...No rotor no motor.
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No; not this year.  Still have some issues to address - oil temps are
running a bit high in the warm weather; some strange behaviors still with
the EC2; and the RD-1B oil seal in the drive mounting plate has developed
some leakage.

Al

Another new message. Why doesn't Tracy fix this?

And the oil seal problem is still here after all these years. Shesssssss!!!!!

Appraently PSRU drain back problems are similar to Turbo charger drain
back problems. The lines need to be large and go to the lowest part of
the oil pan that is not covered by oil.


Paul Lamar
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-------- Original Message --------
Subject: PSRU oil return lines
Date: Fri, 23 Feb 2007 05:45:59 -0800


snips....

> Paul, I noticed only one oil return line from the PSRU. There should be
> one more from the front?
> Or may be I don't see it?
> Buly

Yes there are two. Wot you don't see is the nappy to soak up the oil from
the rear seal on the box. Jabaru now make an 8 cylinder firewall forward
package for the RV's.
Ian.


snips...................


I suspect rear PSRU seal problems are caused by Tracy's input shaft not
being concentric with the e-shaft. That means the needle pilot bearing
in the aft end of the e-shaft has not been properly removed or the
input shaft diameter does not fit the hole perfectly.
One needs to check the run out with a dial indicator.