Hi Bobby,

Yes, no new torbo failures since I decided to keep TOT (the only place I measure exhaust) less than 890C.  Basically,  I treat it like an aircraft engine.  Rich of peak for climbing and decending (TOT around 810C) then lean at altitude when the MAP is lower  (around 870C).  Peak TOT is around 915C.  

Dave Leonard 

On Wed, Aug 22, 2018, 3:18 PM Bobby J. Hughes bhughes@qnsi.net <flyrotary@lancaironline.net> wrote:

Dave

How is the turbo holding up?  Is keeping EGT’s under 1600F keeping it alive?

Bobby 

500 hrs

Sent from my iPad

On Aug 22, 2018, at 5:06 PM, David Leonard wdleonard@gmail.com <flyrotary@lancaironline.net> wrote:

Thanks Kelly!

Yes, I am still using the flywheel and strongly suggest not using the flex plate.  Adaption was easy with a trip to a local machine shop.  Details are in the archives. 

On Wed, Aug 22, 2018, 2:41 PM Kelly Troyer keltro@gmail.com <flyrotary@lancaironline.net> wrote:

Dave,

   Not aware of a flexplate/flywheel replacement made specifically for use with 

Tracy's redrive but Dave Leonard (Turbo/13B-RV6) adapted an aluminum racing

manual transmission flywheel to his redrive after his flexplate developed serious

cracks while qualifying to race at the Reno National Air-Races several years ago.

  Perhaps Dave will jump in here with how he did it.......I know there are a series 

of E mails in the archives with photos of how he did it....As far as I know he still

is flying with this flywheel........FWIW

Kelly Troyer

On Wed, Aug 22, 2018 at 4:17 PM, Pam & Dave Williams padajute@idcnet.com <flyrotary@lancaironline.net> wrote:

Hello,

I am looking for a flex plate for hooking up my 13B to Tracy Crooks redrive.
If that is not available, is anybody making a flywheel replacement?

Thanks,
Dave Williams
Whitewater WI

-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]
Sent: Friday, June 29, 2018 9:37 AM
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: flyrotary : Re Tension Bolts

I too broke a tension bolt several years ago and was fortunate enough to get
a set of the NEW ones 0.500" from a friend - highly recommended.
Mazda increased the size of those bolts for a reason and my original set
were all spiraled with silicone ... put a little silicone on the 0.50" as
well.
Jeff


Dave,

Run a spiral of RTV around the body of those tension bolts next time you
remove them.  That will pretty much eliminate the vibration breakage.  Don't
put it on the threads.

Bill B

Hello,

I am a newbie on the site. I have a Tailwind with a 13B and Tracy's controls
with his redrive. To this point I have been very pleased with the
combination. Last month I broke a tension bolt and have ordered new and
improved .500" bolts from Mazdatrix. My original .312" bolts broke from
vibration. I have 20 hours on the motor and never had any cooling issues. I
suppose that means I am over cooled, but that is okay with me. I will make
cooling improvements when I am back in the air. My 13B is stock and I run it
at 6,300 RPM.

Thanks,
Dave Williams