X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=RZTu9Glv c=1 sm=1 tr=0 a=lJsrbrKi/Kdh1Ege8BKFPQ==:117 a=x7bEGLp0ZPQA:10 a=xXDCcK6TKBsA:10 a=nTHF0DUjJn0A:10 a=5kgCHx-JAAAA:8 a=Ia-xEzejAAAA:8 a=HZJGGiqLAAAA:8 a=C_IRinGWAAAA:8 a=ieCHrYlQ_s-xqK1x0KwA:9 a=QEXdDO2ut3YA:10 a=EIp9Qn7mad9uQHGnNmMA:9 a=y7eglxqd_4Mx47oA:21 a=r8ZRCeaX8sBb4OpKaTiC:22 a=Urk15JJjZg1Xo0ryW_k8:22 From: "Todd Bartrim bartrim@gmail.com" Received: from mail-ot1-f43.google.com ([209.85.210.43] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 397152 for flyrotary@lancaironline.net; Sat, 20 Jun 2020 17:15:54 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.210.43; envelope-from=bartrim@gmail.com Received: by mail-ot1-f43.google.com with SMTP id g5so10059397otg.6 for ; Sat, 20 Jun 2020 14:15:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=ljOVkmM052z4wgHQsKT7LKIuqd3ApPPfCLmHhcQ6VmQ=; b=RT1yBY4qh79ewxMwvT9T6Lyr78XM9ozcJ6P6CMqa5eJSoQPXl591331LOlUyteMAz8 U/Mx1yjgsW4tNbYKb2YSssUFpnXNQgraWl4C/si81BOnRvSZ2TB82mor8SGcLHAwKg1W bjoA7po0ZB12Z1EgiOhMDwKSNMaJpIt2hcO3eAiSPGDUBsIeAnolYn+3S+/DA2eXbAm2 wBolI65oYKGmKXOA4Xf3RyFsuSm6OzomnrTa8w9vwJnC5Iq3gRa903KTzlUzMsRGD8EE H25k/iVKWjpIGOalztz8bC57aZtN/1YVx8bNiF3O0hSvE7Bzo6lwclgcXhP32w18qwWf hyNg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=ljOVkmM052z4wgHQsKT7LKIuqd3ApPPfCLmHhcQ6VmQ=; b=sjIt2tpPJIM1SE7X7Oe6zulr+OtgMhDcM6VDg2uKeX4woYdkceSMQQr8G8NvKhHsKi XO/NlsnDOpz/5cdlhrlIZGDUlVSd1jg6l9s0WM7p2A+Ojg71jpSWvWmfHcJrDClQZeo0 M1q/vqLIcdYa5D3cYaY+FfMSYvWm4iZFu2QEffg5zkgUoAs80+zzcxT8J2oLriJQLXZE YZ2yBURx9G+LoEmWoXlLHcNxgMV/g+xpXoL5li1SWMDnnRZknaOwxdivJ5kgm/bz6+Fe NDi3K2G3etElcmucKyAx6HCSgXR4+5wQx3HLGmPbx+EvKsD76ePutc2c/wz1p09WiEfd oBOw== X-Gm-Message-State: AOAM532nQCa87aeDOX3MIJN4HDX+0N8BeFz+o5OmvL3CCrhYzO3+Nx4s EUYQrSdvKjb+FOzM0jXbrbx8oN9nzLoxYPMIgcfYHBtSlA== X-Google-Smtp-Source: ABdhPJw/bNgDSs0Tzd0QSIxJ+x+nFQ2X0wTbUCPjOL7qvlPQsD85me+Kqv8S0SfuX5BWX53sZO8FYS8EW9SseYizv94= X-Received: by 2002:a9d:7852:: with SMTP id c18mr8202072otm.82.1592687737207; Sat, 20 Jun 2020 14:15:37 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Sat, 20 Jun 2020 14:15:20 -0700 Message-ID: Subject: Re: [FlyRotary] Re: Radiator Clamp Question To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="000000000000d080ec05a88a8247" --000000000000d080ec05a88a8247 Content-Type: text/plain; charset="UTF-8" I have in the past, used crimp style clamps and punch-lok clamps as I'm not crazy over worm gear clamps, but I'm now fully back to using worm gear clamps. I don't recommend punch-lok clamps as it requires a hammer strike to set them and that just feels wrong. But the biggest argument in favour of worm gear clamps is the ease of field repairs. Crimp clamps don't lend themselves well to this. And in tight quarters, while it may be possible to reach in with a tool to squeeze the clamp, it can sometimes be quite difficult to have room to either twist off or cut the clamp off for removal. Due to my nature of always changing and experimenting, this is a definite advantage of worm gear clamps. Even if the install is intended to be permanent in design, hoses can and do age, so at some point removing the clamp is inevitable. Todd Bartrim On Sat, Jun 20, 2020 at 1:08 PM Thomas Mann tmann@n200lz.com < flyrotary@lancaironline.net> wrote: > Anybody try Oetiker crimp style clamps? > Nothing to unscrew there. > > > > ------------------------------ > *From*: "Ernest Christley echristley@att.net" > > *Sent*: Saturday, June 20, 2020 12:23 PM > *To*: "Rotary motors in aircraft" > *Subject*: [FlyRotary] Re: Radiator Clamp Question > > > Also, in the past, I have turned the screw so the slot is parallel to the > hose, then wrapped safety wire through the slot, around the screw housing > and under the threaded end of the screw. > > On Saturday, June 20, 2020, 12:33:30 PM EDT, David COOK > hoursaway1@comcast.net wrote: > > > If it's a worm clamp bend free end over screw, will not loosen. > > On 06/20/2020 12:23 PM Thomas Mann tmann@n200lz.com < > flyrotary@lancaironline.net> wrote: > > > Good Morning, > > Question for the group ... > Has anyone experienced a clamp in the cooling system loosening over time > due to vibration? > Do you safety wire them? > Use a particular type of clamp (such as Oetiker) to avoid this situation? > > What's the recommendation? > > T Mann > > > --000000000000d080ec05a88a8247 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
I have in the past, used crimp style clamps and punch-lok = clamps as I'm not crazy over worm gear clamps, but I'm now fully ba= ck to using worm gear clamps. I don't recommend punch-lok clamps as it = requires a hammer strike to set them and that just feels wrong. But the big= gest argument in favour of worm gear clamps is the ease of field repairs. C= rimp clamps don't=C2=A0lend themselves well to this. And in tight quart= ers, while it may be possible to reach in with a tool to squeeze the clamp,= it can sometimes be quite difficult to have room to either twist off or cu= t the clamp off for removal.
=C2=A0 =C2=A0Due to my nature of always ch= anging and experimenting, this is a definite=C2=A0advantage of worm gear cl= amps. Even if the install is intended to be permanent in design, hoses can = and do age, so at some point removing the clamp is inevitable.=C2=A0
<= div>
Todd Bartrim


On Sat, Jun 20, 2020 at 1:08 PM Thomas Mann tmann@n200lz.com <flyrotary@lancaironline.net> wrote:
Anybody try=C2=A0Oetiker crimp sty= le clamps?
Nothing to unscrew there.
=C2=A0
=C2=A0
=C2=A0
= From: "Ernest Christley echristley@att.net" <flyrotary@lancaironline.net> Sent: Saturday, June 20, 2020 12:23 PM
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net&= gt;
Subject: [FlyRotary] Re: Radiator Clamp Question
=C2=A0
=C2=A0
Also, in the past, I have turned the screw so the slot is = parallel to the hose, then wrapped safety wire through the slot, around the= screw housing and under the threaded end of the screw.
=C2=A0
On Saturday, June 20, 2020, 12:33:30 PM EDT, David COOK hoursaway1@comcast.net &l= t;flyrotar= y@lancaironline.net> wrote:
=C2=A0
=C2=A0
If it's a worm = clamp bend free end over screw, will not loosen.
On 06/20/2020 12:23 PM Thomas Mann tmann@n200lz.com <flyrotary@lancaironline.net> wrote= :
=C2=A0
=C2=A0
Good Morning,
=C2=A0
Question for the group ...
Has anyone experienced a clamp in the cooling system loosening over ti= me due to vibration?
Do you safety wire them?
Use a particular type of=C2=A0clamp (such as Oetiker) to avoid this si= tuation?
=C2=A0
What's the recommendation?
=C2=A0
T Mann
=C2=A0
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