Mailing List flyrotary@lancaironline.net Message #29433
From: keltro@att.n <keltro@att.net>
Subject: Buly's input shaft
Date: Wed, 18 Jan 2006 05:20:40 +0000
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Tracy,
   Will double check my installation to avoid possible similar problem !!
--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2




-------------- Original message from Bulent Aliev <atlasyts@bellsouth.net>: --------------


> Tracy,
> I picked up the resurfaced assembly today, and the machinist told me
> that one end to the other of the gear box contact surface was .027 off.
> I removed the original automatic transmission gear box from the
> bellhousing and replaced it with my new mounting plate. So everything
> was centered as the original transmission gear box. All the mounting
> bolt holes were match drilled. With the extra long shaft, .027 will
> give quite difference at both ends of the shaft.
> I don't see anything else to check?
> Buly
>
>
> > Input shaft
> >
> > Buly, got your input shaft today and checked it out. The thrust
> > bearing rollers & races look a little stressed but the roller cage
> > has been completely trashed. I do not think the .005" out of
> > flatness on your bellhousing would explain this and the odd wear
> > pattern on the plate. The marks and discoloration (heat) on the
> > bearing and shaft look as if there is misalignment between the E-
> > shaft and the gear drive. When you built the plate & bellhousing
> > adapter for the drive, how did you verify concentricity? This is
> > much harder to do than verifying the parallelism of the bellhousing
> > and plate but is absolutely vital. There is no question that the
> > drive would have soon failed if you had continued to run it. Glad
> > this showed up before flight.
> >
> > Tracy (Happy to hear that Dave L. is safe! Good flying. )
> >
> > --
>
>
> --
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