Looks like a nice shaped diffuser. I
used some heavy duty aircraft rubber I had laying around. It’s
glued to the edge of the fiberglass duct and fits snuggly against the outer
edge of the front of the core. When I pull up the bottom part of the cowl
to install it, this lifts the duct into place on the front of the oil cooler
the rubber protects the core and seals against it. That way I don’t
have to keep applying RTV each time I take off the cowl. Seems to work,
no signs of leaks – but then air leaks don’t necessarily leave nice
easy to spot trails.
Ed
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Jeff Whaley
Sent: Tuesday, December 23, 2008
9:33 AM
To: Rotary
motors in aircraft
Subject: [FlyRotary] : Activity
... update and Season's Greetings
Attached are some
photos of the cowl mod and new diffuser mold … haven’t flown since
Dec 6; have to repaint cowling and install new diffuser to radiator. Any
suggestions for sealing to face of an aluminum radiator?
I was thinking
either marine-grade epoxy or blue RTV. Hope to be flying again by mid January
‘09.
Merry Christmas to
all you rotor-heads and best wishes for the New year.
Jeff
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Jeff Whaley
Sent: Friday, December 19, 2008
11:12 AM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Activity
Thanks for that
suggestion Lynn
…
Activity: I’m
moving my radiator air intake slightly forward (about 3”) to get out of
boundary layer and molding/making a streamlined duct which can be 100% sealed
to face of radiator; the rear iron air purge line to expansion tank (3/8”
hose with 3/32” drilled restrictor insert) has been worked out. Will
provide pictures of cowling/ducting mods next week … expect to do layup
tomorrow.
Jeff
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Lynn Hanover
Sent: Thursday, December 18, 2008
9:19 PM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Activity
Jerry, things are real quiet on your part, how is your
project coming?? We do miss your activity like when you where on the
Tailwind Activities. My project is receiving the finishing touches and
will be ready to go when the snow clears in the spring. It is looking
like I don't have enough prop (68 x 72) on the Rotary, will need to get it out
of the garage after the new year and run it some more with the tach that Bob
White put together for me. Farmer John
The rotary has ports open to the outside all of the
time. Humid air can enter the engine as it goes through heating and cooling
each day. In a barn, in a hanger, even a heated shop. I use motor oil in the
intake and turn over the engine a complete cycle, (three crank
revolutions) and tape the exhaust pipe shut. Turn over three revs monthly when
out of service.
More of them have died sitting still than running.
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