Return-Path: Received: from [216.52.245.18] (HELO ispwestemail2.mdeinc.com) by logan.com (CommuniGate Pro SMTP 4.2b5) with ESMTP id 166266 for flyrotary@lancaironline.net; Thu, 17 Jun 2004 11:46:51 -0400 Received: from ispwest.com (unverified [216.52.245.25]) by ispwestemail2.mdeinc.com (Vircom SMTPRS 3.1.302.0) with ESMTP id for ; Thu, 17 Jun 2004 08:46:18 -0700 Message-ID: X-EM-APIVersion: 2, 0, 1, 0 X-Priority: 3 (Normal) From: "Bill Schertz" To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: second belt on alternator Date: Thu, 17 Jun 2004 08:46:18 -0700 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable I would very much like to see a picture=2E My engine has an e-shaft drive pulley with room for two V-belts, as does my = 13-B water pump=2E My cowl will not allow installation of alternator on top = of engine, so it has to be on the plug side=2E I could run two belts (ident= ical) from water pump and alternator (need 2-groove alternator pulley), but = if one were to break, and cause the other to break, I would lose all cooling= (water pump)=2E I considered a second alternator, so one belt drives each alternator, locate= d in different locations, with the thought (hope) that loss of one belt woul= d be less likely to lose the other=2E Most planes flying 60 amp alternators = or less have only one belt=2E A second thought was if I cannot fit in a second alternator, is to have the = second belt just drive the water pump, with an idler pulley, then if alterna= tor belt departs, the pump still works, and I can start looking for a place = to land using battery power=2E With all electric ignition, and fuel pumps, and EFIS, I need to address redu= ndancy=2E Bill Schertz KIS Cruiser # 4045 ----- Original Message ----- From: Mark Steitle Sent: 6/17/2004 5:55:27 AM To: flyrotary@lancaironline=2Enet Subject: [FlyRotary] Re: second belt on alternator > Bill, > My 20B came setup for multiple belts=2E It has the multi-v type pulleys=2E= I=20 > recently discovered that the 20B w/p pulley won't fit over a 13B w/p=2E I=20= > could take a picture of my dual alternator setup, if that would help=2E >=20 > Mark S=2E >=20 > At 06:25 AM 6/16/2004 -0500, you wrote: > >I have been looking at how a redundant belt that would continue to drive = the > >water pump could be installed, but have not found a viable routing=2E > >Bill Schertz > >KIS Cruiser # 4045 > >----- Original Message ----- > >From: "Wynn, Mike" > >To: "Rotary motors in aircraft" > >Sent: Wednesday, June 16, 2004 12:43 AM > >Subject: [FlyRotary] flyrotary Web Archive > > > > > > > I hadn't thought of the advantages of a second independent belt to act= as > >a > > > back up for the water pump=2E Was actually thinking of an thermostati= cally > > > switched EWP as backup and trying to do something at the other end of = the > > > motor=2E Any option to use the flywheel teeth to drive something or i= s that > >a > > > silly one? > > > Cheers > > > Mike > > > > > > >> Homepage: http://www=2Eflyrotary=2Ecom/ > > > >> Archive: http://lancaironline=2Enet/lists/flyrotary/List=2Ehtml > > > > > > >> Homepage: http://www=2Eflyrotary=2Ecom/ > > >> Archive: http://lancaironline=2Enet/lists/flyrotary/List=2Ehtml >=20 >=20 > >> Homepage: http://www=2Eflyrotary=2Ecom/ > >> Archive: http://lancaironline=2Enet/lists/flyrotary/List=2Ehtml