Return-Path: <13brv3@bellsouth.net> Received: from imf17aec.mail.bellsouth.net ([205.152.59.65] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP id 884167 for flyrotary@lancaironline.net; Tue, 19 Apr 2005 21:22:51 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.65; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf17aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050420012204.KGUL2434.imf17aec.mail.bellsouth.net@rd> for ; Tue, 19 Apr 2005 21:22:04 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: stock 3rd gen oil filter- bypass valve? Date: Tue, 19 Apr 2005 20:22:27 -0500 Message-ID: <05e401c54547$6a564380$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_05E5_01C5451D.81803B80" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2527 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_05E5_01C5451D.81803B80 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit The question was - Does the stock 3rd gen filter have a bypass? I'm guessing it does. Cheers, Rusty I'm not sure why it would - it is not a full flow filter. The filter block is ported so some oil goes through the filter to the engine, and some bypasses to the pressure control valve - back to the pan. Al I would think the engineers would be interested in protecting the engine, more than the filter, and dirty oil is better than no oil (trust me on that one ). If the filter has no bypass, and it plugs up, you'll have good oil temp and pressure, but a ruined engine. One of the things I like about the 3rd gen filter, is that it's made to run high oil pressures. Even if it plugged up, and didn't have a bypass, I bet it would hold the 157 psi front cover relief pressure. Cheers, Rusty (ordered a K&N filter to test, and see if it fits) ------=_NextPart_000_05E5_01C5451D.81803B80 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable Message
The question = was=20 - Does the stock 3rd gen filter have a = bypass?  = I'm guessing=20 it does.

 

Cheers,

Rusty

I’m = not sure why it=20 would – it is not a full flow filter.  The filter block is = ported so some=20 oil goes through the filter to the engine, and some bypasses to the = pressure=20 control valve – back to the pan.

 

Al 

 

I would=20 think the engineers would be interested in protecting the engine, = more than=20 the filter, and dirty oil is better than no oil (trust me on that one=20 <g>).    If the filter has no bypass, and it = plugs up,=20 you'll have good oil temp and pressure, but a ruined=20 engine.  

 

One of the=20 things I like about the 3rd gen filter, is that it's made to run = high oil=20 pressures.  Even if it plugged up, and didn't have a bypass, I = bet it=20 would hold the 157 psi front cover relief=20 pressure.  

 

Cheers,

Rusty (ordered a=20 K&N filter to test, and see if it=20 fits)  

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