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Can it be welded up, redrilled, and
retapped?
Bill B
From: Rotary motors in aircraft
[mailto:flyrotary@lancaironline.net] On
Behalf Of Ed Anderson
Sent: Thursday, December 09, 2010
10:29 AM
To: Rotary
motors in aircraft
Subject: [FlyRotary] Re: Source
for 18mm x 2.0 Bolt
Ah, I had missed the part about already tapping the hole
with the 18x2.0. Yes, that sort of puts you needing a 18x2.0 bolt.
Sent: Thursday,
December 09, 2010 7:37 AM
Subject:
[FlyRotary] Re: Source for 18mm x 2.0 Bolt
Ed,
I totally agree, except were you don't have much other choice, like
when plugging the heater port. There isn't enough material to drill &
tap to a common size. The 18mm was a good fit, and would have worked out
great if we had used a more common pitch, like 1.5. Who would have known
that they make taps for non-existent bolt sizes.
Mark
On Thu, Dec 9, 2010 at 6:15 AM, Ed Anderson <eanderson@carolina.rr.com>
wrote:
I would avoid the "have it made route" if
possible. If for some reason you ever needed a replacement, you'd have to
have it made again. Although, I must admit, I can't imagine what would
ruin an 18x2.0 bolt that wouldn't trash the engine - but you never know
{:>).
I try to stick with easily available standard sizes if at
all possible for just about anything on the aircraft - so I can run down to
local Auto store when away from home and get the part if needed.
Sent: Thursday,
December 09, 2010 6:35 AM
Subject:
[FlyRotary] Re: Source for 18mm x 2.0 Bolt
From the responses received on this it looks like the best route is to
go see the machinist and have one made. Oh, and throw the 18mm x 2.0 tap
in the trash.
Mark
On Wed, Dec 8, 2010 at 9:26 PM, Dave <david.staten@gmail.com>
wrote:
Bought something bigger, cut it down... filed the threads into a taper
at the tip and played with it carefully so it didnt cross thread. Thats what I
did with our first attempt at a block, when we put an aluminum adapter on the
oil pump pad for oil return and PSRU feed.
Later gen used the stock oil return fitting with an AN adapter on it.
On 12/8/2010 3:40 PM, Mark Steitle wrote:
Short story is that this is the tap size I had handy that fit the
hole. We're trying to plug the heater port on the rear
housing. Who would have thought that an 18mm x
2.0 would be an oddball size! We found a place that sells 18mm
x 2.0 nuts, but they tell us that nobody makes an 18 x 2.0 bolt.
That seems hard to believe.
On Wed, Dec 8, 2010 at 3:26 PM, Kelly Troyer <keltro@att.net> wrote:
Try the link below.............What in the
world is it for !!.................There may be other sources but
this is the first one I found.................
Kelly
Troyer
"DYKE DELTA JD2" (Eventually)
"13B
ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold
"TURBONETICS"_TO4E50
Turbo
From: Richard
Sohn <res12@fairpoint.net>
To: Rotary
motors in aircraft <flyrotary@lancaironline.net>
Sent: Wed, December 8, 2010
2:57:49 PM
Subject: [FlyRotary] Re: Source
for 18mm x 2.0 Bolt
You will have a hard time for that. M18 x 2.5 is standard
and first choice fine is 18 x 1.5 . You may have to get it made.
----- Original Message -----
Sent: Wednesday,
December 08, 2010 1:49 PM
Subject: [FlyRotary] Source
for 18mm x 2.0 Bolt
Anyone know where I can purchase an 18mm x 2.0 bolt?
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