Coupler part # at McMaster-Carr

[rick]

Like Ron says, a Ford / Chevy thing. 

PTFE - good stuff for the lazy pilot. I've been using the same Teflon
coupler w/ my 140RX for about 500-600 flights, and it's still fine. Double
spring clamps to hold it on. No failures, no maintenance, no worries. 

 

-----Original Message-----
From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org] On
Behalf Of Lance Van Nostrand
Sent: Tuesday, August 09, 2005 12:32 AM
To: discussion at nsrca.org
Subject: Re: Coupler part # at McMaster-Carr

 

Ron,

If I were running the hotter 4 strokes I would definitely use PTFE.  But on
2 strokers I don't prefer it.

--Lance

----- Original Message ----- 

From: Ron Van Putte <mailto:vanputte at cox.net>  

To: discussion at nsrca.org 

Sent: Monday, August 08, 2005 9:33 PM

Subject: Re: Coupler part # at McMaster-Carr

 


On Aug 8, 2005, at 9:27 PM, Lance Van Nostrand wrote:

I don't like the teflon approach.  Wierd stuff.  it shrinks to its nominal
size when cold and is really tight.  then when it heats up it gets loose.
It can be pretty stiff too.  A Webra is not a 4 stroke and I like the softer
give of silicone.  I use the clear 5/8" high purity tubing because it's good
to 500 degrees, which is 150 more than regular silicone.  number 51845k38 is
what I order.


Well, I guess that's why they make Fords and Chevrolets. I prefer the Teflon
tubing. I used one piece of 1/2" ID PTFE tubing on the YS 1.40L-powered
Advantage that I flew for 2 1/2 years. I never used any clamps on either
end.

Ron Van Putte

----- Original Message -----

From: Emory Schroeter 
To: Pattern NSRCA 
Sent: Sunday, August 07, 2005 10:26 PM
Subject: Coupler part # at McMaster-Carr

Hello,
 
I was wondering what type of material people are using for couplers for
their two stroke engines. I am going to place an order at McMaster-Carr
(unless some else has a better place to get it) for the Teflon coupler
material. What part # are you using? This will be for a Webra (Mac's header)
and Aeroslave carbon pipe. Both are between 3/4" to 7/8" in diameter.
 
Thanks,
Emory Schroeter.

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