X-Junk-Score: 0 [] X-KAS-Score: 0 [] From: "Marc Wiese cardmarc@charter.net" Received: from pmg.Logan.com ([207.170.160.161] verified) by logan.com (CommuniGate Pro SMTP 6.4.0) with ESMTPS id 3888596 for flyrotary@lancaironline.net; Thu, 20 Mar 2025 13:45:34 -0400 Received: from pmg.Logan.com (localhost [127.0.0.1]) by pmg.Logan.com (Proxmox) with ESMTP id D2CA7227D0 for ; Thu, 20 Mar 2025 13:45:33 -0400 (EDT) Received-SPF: pass (charter.net: 47.43.20.30 is authorized to use 'cardmarc@charter.net' in 'mfrom' identity (mechanism 'ip4:47.43.20.0/24' matched)) receiver=pmg.Logan.com; identity=mailfrom; envelope-from="cardmarc@charter.net"; helo=impout006.msg.chrl.nc.charter.net; client-ip=47.43.20.30 Received: from impout006.msg.chrl.nc.charter.net (impout006aa.msg.chrl.nc.charter.net [47.43.20.30]) by pmg.Logan.com (Proxmox) with ESMTPS for ; Thu, 20 Mar 2025 13:45:33 -0400 (EDT) Received: from HomeDesktop ([68.184.182.131]) by cmsmtp with ESMTPA id vJxLtG6nTXhi8vJxNtiURv; Thu, 20 Mar 2025 17:45:25 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=charter.net; s=c20240129; t=1742492726; bh=KRZ1CzrinOkWsJVH+Z0mhXNoQzdU6X74rwX6oExfXEg=; h=From:To:References:In-Reply-To:Subject:Date; b=f3zpkHJm2U0amRYwvashHgb/vsXyDMLmiHZDlpxpBC0iENJ9t1ZfBVyrY1gdJMmwY h+Z/x8fcS0kHw3MguL6yRZe3XBi6qwk71A/oFrBqTrnmVTJQpkztYIu2UImOthuwhY olfveNM6AIYlu/7EeEejq3ytEcyg90ccCVYnogFVWFbWPKJc6cscn5KU169Kx+nwlj ppac1nW9EXpOzt9Gt3RWzNGHOD0P171eTtMXttliCAHmfXNlS9T52UiNvaaE/X9mcE vKCeCoSuRrKMQPsmLjq/hlKMmdUpLVEQPjedKn4icLaE8aXxfrnWjCetYGw3sUV4qo B2rOtUxgzBg3A== Authentication-Results: charter.net; auth=pass (LOGIN) smtp.auth=cardmarc@charter.net X-Authority-Analysis: v=2.4 cv=H5ndwfYi c=1 sm=1 tr=0 ts=67dc5435 a=qoXC88jkgkm1v/IAzpf30Q==:117 a=qoXC88jkgkm1v/IAzpf30Q==:17 a=DAwyPP_o2Byb1YXLmDAA:9 a=yMhMjlubAAAA:8 a=Ia-xEzejAAAA:8 a=GEzn2TgXg-Jn3swUjX8A:9 a=QEXdDO2ut3YA:10 a=SSmOFEACAAAA:8 a=aSoHyhLl0NT1nvYVUXIA:9 a=F5-MKwykNsnbuC6j:21 a=gKO2Hq4RSVkA:10 a=UiCQ7L4-1S4A:10 a=hTZeC7Yk6K0A:10 a=frz4AuCg-hUA:10 a=Urk15JJjZg1Xo0ryW_k8:22 To: "'Rotary motors in aircraft'" References: In-Reply-To: Subject: RE: [FlyRotary] Re: RD-C input shaft failure Date: Thu, 20 Mar 2025 12:45:23 -0500 Message-ID: <005f01db99bf$dcb738c0$9625aa40$@charter.net> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0060_01DB9995.F3E130C0" X-Mailer: Microsoft Outlook 16.0 Thread-Index: AQKz/f3pyZft63pwZsS8QBjd0lSJprHLg2LQ Content-Language: en-us X-CMAE-Envelope: MS4xfGdAGZfu1/K+Vtbi+OjqDl5iYEZ1ukJ7xUGgkCL1O2IXTM9gM9LtGVVEm4OktadMTm7KKTTfoyBGRZJspRLO7GxpRDqGlxRHgZ4uZ3FDRni4oTHgEPVu pITRspD1J2a8PI4r47SxwhEf7tHfy3s1kWDB3xkPvITJTfkM86BhfgkAXjs76+MKqxuz+Tra/zUigM83ZIPipxDwnZf6fOZdv2E= X-SPAM-LEVEL: Spam detection results: 0 AWL -0.068 Adjusted score from AWL reputation of From: address BAYES_00 -1.9 Bayes spam probability is 0 to 1% DKIM_SIGNED 0.1 Message has a DKIM or DK signature, not necessarily valid DKIM_VALID -0.1 Message has at least one valid DKIM or DK signature DKIM_VALID_AU -0.1 Message has a valid DKIM or DK signature from author's domain DKIM_VALID_EF -0.1 Message has a valid DKIM or DK signature from envelope-from domain DMARC_MISSING 0.1 Missing DMARC policy FREEMAIL_FROM 0.001 Sender email is commonly abused enduser mail provider HTML_MESSAGE 0.001 HTML included in message RCVD_IN_BL_SPAMCOP_NET 1.347 Received via a relay in bl.spamcop.net SPF_HELO_NONE 0.001 SPF: HELO does not publish an SPF Record SPF_PASS -0.001 SPF: sender matches SPF record This is a multipart message in MIME format. ------=_NextPart_000_0060_01DB9995.F3E130C0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Dennis, How did you end up fixing this, and was it a RD-1C redrive? Contrats on = 920 hours on your rotary engine! Is it a series 1 or 2 rx8 engine? Marc =20 =20 From: Rotary motors in aircraft=20 Sent: Monday, November 27, 2023 9:09 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: RD-C input shaft failure =20 The shaft between the RX-8 engine and the reduction drive unit has a = gear secured to the shaft with a steel pin. (The gear drives the = planetary gear set). The steel pin sheared off allowing the gear to = rotate on the shaft. I understand this has happened to others in the = past. I=E2=80=99ve heard that several fixes were proposed or tried = =E2=80=93 welding the pin to the gear, doing more deforming of the pin = at the gear surface or installing a tighter or larger pin. I have = another new shaft/gear assembly I plan to install after I incorporate = improvements. =20 When the pin sheared the gear only rotated about 3/32 inch on the shaft. = The two pieces of the pin outside the shaft were thrown out of the gear = and apparently were chewed into very small particles by the planetary = gear assembly. =20 =20 Any info. You may have will be highly appreciated! I have about 920 hours on my RX-8 engine in my RV-7A =20 Dennis Haverlah=20 512-921-0636 =20 Sent from Mail for = Windows =20 =20 ------=_NextPart_000_0060_01DB9995.F3E130C0 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable

Dennis,

How did = you end up fixing this, and was it a RD-1C redrive? Contrats on 920 = hours on your rotary engine! Is it a series 1 or 2 rx8 = engine?

Marc

 

 

From: Rotary motors in aircraft =
Sent: Monday, November 27, 2023 9:09 PM
To: Rotary = motors in aircraft = <flyrotary@lancaironline.net>
Subject: [FlyRotary] Re: = RD-C input shaft failure

 

The shaft = between the RX-8 engine and the reduction drive unit has a gear secured = to the shaft with a steel pin.  (The gear drives the planetary gear = set). The steel pin sheared off allowing the gear to rotate on the  = shaft.   I understand this has happened to others in the = past.   I=E2=80=99ve heard that several fixes were proposed or = tried =E2=80=93 welding the pin to the gear, doing more deforming of =  the pin at the gear surface or installing a tighter or larger = pin.   I have another new shaft/gear assembly I plan to = install  after I incorporate  improvements.  =

When the pin sheared the gear only = rotated about 3/32 inch on the shaft. The two pieces of the pin outside = the shaft were thrown out of the gear and apparently were chewed into = very small particles by the  planetary gear assembly.  =

 

Any info. You may have will be highly = appreciated!

I have about 920 hours = on my RX-8 engine in my RV-7A

 

Dennis = Haverlah

512-921-0636

 

Sent from Mail for = Windows

 

 

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