X-Junk-Score: 0 [] X-Cloudmark-Score: 0 [] X-Cloudmark-Analysis: v=2.3 cv=EuKsUhUA c=1 sm=1 tr=0 a=DUWv+hUk7Cu2hlvKYqx6KA==:117 a=x7bEGLp0ZPQA:10 a=xXDCcK6TKBsA:10 a=reM5J-MqmosA:10 a=pGLkceISAAAA:8 a=Ia-xEzejAAAA:8 a=hOpmn2quAAAA:8 a=003iTtzkLbJagTl0BBEA:9 a=QEXdDO2ut3YA:10 a=hJtI7KDE8jNbWl33GSIA:9 a=8hT0GhV-mk9iRdqP:21 a=Urk15JJjZg1Xo0ryW_k8:22 a=GyA-uvUxXSCciAkwuKQO:22 From: "Todd Bartrim bartrim@gmail.com" Received: from mail-oi1-f181.google.com ([209.85.167.181] verified) by logan.com (CommuniGate Pro SMTP 6.2.14) with ESMTPS id 745723 for flyrotary@lancaironline.net; Sun, 13 Sep 2020 13:19:15 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.167.181; envelope-from=bartrim@gmail.com Received: by mail-oi1-f181.google.com with SMTP id x19so15266609oix.3 for ; Sun, 13 Sep 2020 10:19:16 -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=qjRaV+gxcTf/KrQAPNpCd9HBiTjItR8/a2kuNcN6KDg=; b=KaczmtXN0BCvDlzu7D7kn3vxG2kFHzPsplwYoWT3r8/fiAaLqOX5ATz7Sz8WQaQK1n 8OsPQIouJxZBGRdCMbeh4SIuXDt9C9tOPXg5h17zEMNjq8gOE3fqFpHLgnqDJrtg4mt0 neyDcbY7OAWrS4fwffSBtR2N4NRWItiPzD4MTznuVbdE0J/TF7BKdYfrCY6MOjttmT4N 3XmwEBrcdVwHZDNLGCl+g+y+mHlIoEUFXycl/pFgU+eFIiDbmtHDAoOYGBHseMtxzRN3 e1cmVAYQM07yk0+uv33CesWlpdqZwWh+y/SaWq4Ptwl/ZrL0XZJ172CIi/HJ/hJOZpg7 DDPA== 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=qjRaV+gxcTf/KrQAPNpCd9HBiTjItR8/a2kuNcN6KDg=; b=Ov4pWMTLwKXpc3/T6SeDTKKCARksDDRkhu/2IR2FdvYwdN1w2pGUO8Zo98Gk0YM5Xy siCu76NqugNG5yzBqJyA15oWDBu04OWAgkk3gAh4VScIuIdE49Ll0vS3ZDqGKTYtNjZW 0imt8MoZoBLFrrpAgZ65mOTJBf0VkwAHvCwvTO2hPszNuVpmLwOvg/s8Xe6tZ3Gs+Dtx 0up0eikSzi7uyRZry06dqQK3pSzwImKh8+wqXHulW1KamFPZmLx94YLwcQjj8gpJZfdf r92bL8XSsrepjuGJDYIF/AWDl2WPwXhJsCYWkQ+EvNqUUnKc6T2hv65W81YPQ9+O7tbY cmpg== X-Gm-Message-State: AOAM533BPHPBplgcQBQeuQ+aEf9J75URMgWfjf7tJ4lXM/9frfkOICDo HVel5QUBZ5UUqTaRk7Va9xia+7klPf2DIQyufmbRC9bxSg== X-Google-Smtp-Source: ABdhPJxCZFo9V4j3hAanGTshUX5FXIwHMxmXICRM4DtFfqc6tdi/QtMf9BfOqC8TAv4Ue9PWSR9mHS5B1GkHGwIy+bU= X-Received: by 2002:aca:6708:: with SMTP id z8mr6713764oix.6.1600017538522; Sun, 13 Sep 2020 10:18:58 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: Date: Sun, 13 Sep 2020 10:18:46 -0700 Message-ID: Subject: Re: [FlyRotary] Re: Turbo oil cut-off valve To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary="00000000000004a1d105af351d01" --00000000000004a1d105af351d01 Content-Type: text/plain; charset="UTF-8" Thanks Dave; Hopefully it will be nothing more than dead weight that I'll never need, but I seem to have a few of those systems in the plane. Todd On Sat., Sep. 12, 2020, 18:40 David Leonard wdleonard@gmail.com, < flyrotary@lancaironline.net> wrote: > Hi Todd, > > You know when it's time to flip the switch when the turbo is no longer > working and you find yourself being restricted to manifold pressures that > are consistent with normal aspiration, yet the engine is otherwise running > normally. If you find yourself wanting to flip the switch, you probably > already know that the turbo is toast. Also, as in one of the instances > that happened to me, someone on the ground might radio and say that you are > 'on fire' because of the large amount of smoke in your exhaust. If at any > point you are in doubt, you can turn sharply and examine your exhaust. If > you seem to be using your uninstalled smoke system, flip the switch. > > Good question though. > > Dave Leonard > > On Sat, Sep 12, 2020 at 12:36 PM Marc Wiese cardmarc@charter.net < > flyrotary@lancaironline.net> wrote: > >> Most certified aircraft have a check valve (that requires regular >> maintenance) in the return line. >> >> Marc >> >> >> >> *From:* Rotary motors in aircraft >> *Sent:* Saturday, September 12, 2020 4:13 AM >> *To:* Rotary motors in aircraft >> *Subject:* [FlyRotary] Turbo oil cut-off valve >> >> >> >> Hi Dave; >> >> Today I installed a small normally open solenoid valve on my turbo oil >> supply line. An AME that happened by was questioning how exactly that I >> would know that my turbo bearings were failed and loosing oil. I couldn't >> give him an answer that he was satisfied with and he now has me questioning >> whether I would know with a reasonable degree of certainty. >> >> So exactly what did your turbo do when it failed that made you certain >> of what it was. >> >> I figure that if I got it wrong and cut off oil when it was still >> working, then worst case is that I just destroy $1AMU turbo, but most >> likely it would just destroy the bearings. >> >> >> >> Todd >> > --00000000000004a1d105af351d01 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Thanks Dave;
=C2=A0 =C2=A0Hopefully it w= ill be nothing more than dead weight that I'll never need, but I seem t= o have a few of those systems in the plane.=C2=A0
Todd

On Sat., Sep. 12, 2020, 18:40 David Leo= nard wdleonard@gmail.com, <flyrotary@lancaironline.net> wrote:
Hi To= dd,

You know when it's=C2=A0time to flip the switch = when the turbo is no=C2=A0longer working and you find yourself being restri= cted to manifold pressures that are consistent with normal aspiration, yet = the engine is otherwise running normally.=C2=A0 If you find yourself=C2=A0w= anting to flip the switch, you probably already know that the turbo is toas= t.=C2=A0 Also, as in one of the instances that happened to me, someone on t= he ground might radio and say that you are 'on fire' because of the= large amount of smoke in your exhaust.=C2=A0 If at any point you are in do= ubt, you can turn sharply and examine your exhaust.=C2=A0 If you seem to be= using your uninstalled smoke system, flip the switch.=C2=A0=C2=A0

Good question though.

Dave Leonar= d

On Sat, Sep 12, 2020 at 12:36 PM Marc Wiese cardmarc@charter.net <flyrotary@lancaironline.net> wrote:

Most ce= rtified aircraft have a check valve (that requires regular maintenance) in = the return line.

Marc

=C2=A0

From: Rotary motors in aircraft
Sen= t: Saturday, September 12, 2020 4:13 AM
To: Rotary motors in = aircraft <flyrotary@lancaironline.net>
Subject: [FlyRotary] Turbo oil cut-off valve

=C2=A0

Hi Dave;

=C2=A0 Today I installed a small no= rmally open solenoid valve on my turbo oil supply line. An AME that happene= d by was questioning how exactly that I would know that my turbo bearings w= ere failed and loosing oil. I couldn't give him an answer that he was s= atisfied with and he now has me questioning whether I would know with a rea= sonable degree of certainty.

=C2=A0 So exactly what did your turbo do when it failed that made you = certain of what it was.

= =C2=A0 I figure that if I got it wrong and cut off oil when it was still wo= rking, then worst case is that I just destroy $1AMU turbo, but most likely = it would just destroy the bearings.

=C2=A0

Todd<= u>

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