Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2) with ESMTP id 383319 for flyrotary@lancaironline.net; Sun, 29 Aug 2004 08:04:04 -0400 Received-SPF: none receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from EDWARD (cpe-069-132-183-211.carolina.rr.com [69.132.183.211]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id i7TC31iB008648 for ; Sun, 29 Aug 2004 08:03:03 -0400 (EDT) Message-ID: <001301c48dc0$257ddfa0$2402a8c0@EDWARD> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Engine run - Good news/bad news Date: Sun, 29 Aug 2004 08:03:07 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0010_01C48D9E.9E272050" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1409 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1409 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0010_01C48D9E.9E272050 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable =20 2.. The joy was short-lived because it was only a one minute run = while I had the redrive drain line disconnected. Taking the drain line = off gave the first clue. No sign that a drop of oil had ever been = there. The amount of oil in the container after the run - zippo; not a = drop. I took off the feed line and there was oil sitting in the = fitting. Feeding to a container, I ran again for less than 30 seconds, = and sent more than a pint into the container. Complete blockage inside = the drive. The prospect of removing the prop, drive and disassembly is = not a happy one.=20 Al, something you might try before taking the gearbox off (a pain to = say the least). Its been know for such stuff as the silicon grey = sealant to plug up the drains. Yes, unlikely that it would have plugged = up the front one. But, short of taking off the gear box you might try = removing the drain fittings - just in the remote chance they could be = plugged. Ed Other items: 1.. Adjusted calibration of temp readings to be correct at room = temp, and checked response of all senders with heat gun. All responded = normally. High temperature calibration check coming later; I'm picking = up pyrometer gun from a friend tomorrow. Some spots of flat black paint = in key places should give me a good check - ah-h-h; when I can run = again. He is also giving me a fuel pressure guage to verify FP readout. = 2.. Checked voltage reading, compared voltage at pin 9 connector P3 = (EM2 disconnected) with readout from EM2. Differred by 0.1 volts. For = roughly a 10' run of #22 wire that suggests about 0.6 amps. I don't = recall the EM2 draw, but this seems close enough=20 3.. Tried to check the O2 sensor output using a flame from a propane = torch. Nothing. I'll probably try again to get a voltage reading at = the sensor when I can run again. It still gives close to full scale = reading no matter what mixture setting.=20 ------=_NextPart_000_0010_01C48D9E.9E272050 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

The joy was = short-lived=20 because it was only a one minute run while I had the redrive drain = line=20 disconnected. Taking the drain line off gave the first = clue. No=20 sign that a drop of oil had ever been there. The amount of oil = in the=20 container after the run =96 zippo; not a drop. I took off the = feed line=20 and there was oil sitting in the fitting. Feeding to a = container, I=20 ran again for less than 30 seconds, and sent more than a pint into = the=20 container. Complete blockage inside the drive. The = prospect of=20 removing the prop, drive and disassembly is not a happy = one.=20

Al, something you = might try=20 before taking the gearbox off (a pain to say the least). Its = been know=20 for such stuff as the silicon grey sealant to plug up the = drains. Yes,=20 unlikely that it would have plugged up the front one. But, short = of=20 taking off the gear box you might try removing the drain fittings - = just in=20 the remote chance they could be plugged.

Ed

Other = items:

Adjusted calibration = of temp=20 readings to be correct at room temp, and checked response of all = senders=20 with heat gun. All responded normally. High temperature=20 calibration check coming later; I=92m picking up pyrometer gun from = a friend=20 tomorrow. Some spots of flat black paint in key places should = give me=20 a good check =96 ah-h-h; when I can run again. He is also = giving me a=20 fuel pressure guage to verify FP readout.=20
Checked voltage = reading,=20 compared voltage at pin 9 connector P3 (EM2 disconnected) with = readout from=20 EM2. Differred by 0.1 volts. For roughly a 10=92 run of = #22 wire=20 that suggests about 0.6 amps. I don=92t recall the EM2 draw, = but this=20 seems close enough=20
Tried to check the = O2 sensor=20 output using a flame from a propane torch. Nothing. = I=92ll=20 probably try again to get a voltage reading at the sensor when I can = run=20 again. It still gives close to full scale reading no matter = what=20 mixture setting.

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