X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp102.sbc.mail.gq1.yahoo.com ([67.195.15.61] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with SMTP id 3756407 for flyrotary@lancaironline.net; Mon, 13 Jul 2009 20:55:47 -0400 Received-SPF: none receiver=logan.com; client-ip=67.195.15.61; envelope-from=JLuckey@pacbell.net Received: (qmail 45849 invoked from network); 14 Jul 2009 00:55:11 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=pacbell.net; h=Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:thread-index:X-MimeOLE:In-Reply-To; b=5A/fzZQkBWgyrRYPjgyB9t6HVcf9IXwpMShX9JQcXhjV4U984SaszjOHzixgH++KMGeNz3JtYjU/rSFuV71gAREIovwusM6kSo9ARYhmW6wkgneL6Ci+lX9Ym4w43ymxudB6W63NMYoGDme+4xiRO8XbBOXXxPqpzlMGxDv0XwE= ; Received: from unknown (HELO dcshq1) (JLuckey@99.129.27.228 with login) by smtp102.sbc.mail.gq1.yahoo.com with SMTP; 14 Jul 2009 00:55:10 -0000 X-Yahoo-SMTP: BzokY4CswBDoFuIWJDcnYQ4xOkKNC8.CAYaNO_geXo4- X-YMail-OSG: gI41J9MVM1lvZMgVN5KXJ_uA5ITJEtSVWJBMQw1Zuf2YsF7b4tDW2GXEweIhR4uQKRjlYkra9tBb4LK2fAQBn1X7cK58K75zOhFW9grO3u3JNS10BXwOuRT1nD4vLZ1FPxTnqKXeRs8sQmbmXl84DbYKsY0VoVf6UbeelZQmSEW68N.HP30Bi92DDGnf3QSOHOA.jjNwqigoo_MpZ5q2TB2eY3GuXgbz2HB.VNImDwXN32r84pZqJm9uBKVVOLZ030i0ZdacEmVHQbamUj91zLoqGZ4V3PW_819kpyrlgCDHE9SGyQGXL_7vupaiJjNN9Xdi7DiNs8jIZcOkln2V7TGTON7gVRerK3phzBs7N5xnCA-- X-Yahoo-Newman-Property: ymail-3 From: "Jeff Luckey" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Off topic sort of Date: Mon, 13 Jul 2009 17:55:03 -0700 Message-ID: <009c01ca041d$b96afe40$6601a8c0@dcshq1> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_009D_01CA03E3.0D0C2640" X-Mailer: Microsoft Office Outlook 11 thread-index: AcoEAUTYykGhM9F3QYeKKKA4kEcNMwAFXZZw X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_009D_01CA03E3.0D0C2640 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Bob,=20 =20 That=92s a good one. =20 =20 Assuming that everything is mechanically OK such as: 1. pulleys are aligned properly and in good condition (no nicks or gouges in the belt-contacting surface of any pulley) 2. the proper belt of good quality and proper tension 3. no contamination on belt or pulleys =20 we can then look at the electrical side of the system. =20 =20 It is really a long shot, but let=92s assume that the alternator is putting-out too much power due to a malfunctioning regulator which is applying full field current. (which should not burn-up the belt, but you never know). To determine if this is the case, you need to determine = how much current the alternator is putting out. =20 1. Is there an ammeter? =96 if so it will most likely be pegged or at least staying way to the right indicating lots of amps output 2. If no ammeter, how about a volt meter? Which will also be reading high =96 above 14.5 volts 3. If there is neither type of meter, you need to measure the system voltage with a multi-meter. If this is indeed the problem, you will see voltage go up and past 14.5 volts as engine RPM increases. =20 Like I said earlier, this is really a long shot because I think you = would be experiencing other problems with your electrical system if the voltage = were getting real high. =20 =20 Best of luck, =20 Jeff Luckey =20 =20 =20 _____ =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson Sent: Monday, July 13, 2009 14:31 To: Rotary motors in aircraft Subject: [FlyRotary] Re: Off topic sort of =20 Bob, you say the belt tension =93=85should be right=85=94. Have you = verified that it is. A sort of rule of thumb (but no substitute for using a belt = tension measurer) is the belt should not be able to be depressed more than = =BD=94 at the mid point between the pulleys. =20 =20 I presume it is driven by a =93V=94 belt? A quality belt is being used = such as a =93Gates=94 =96 I have had some imported (and cheap) belts last less = that two flights in my aircraft, so I now use only Gates belts. =20 =20 Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm =20 _____ =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of btilley@mchsi.com Sent: Monday, July 13, 2009 5:10 PM To: Rotary motors in aircraft Subject: [FlyRotary] Off topic sort of =20 Ok folks, =20 I've got a problem! I have a motorhome that keeps burning up altenator belts. They only last about 100 miles. I thought I had found the problem/problems. First someone else had rebuilt the motor when my = parent had the motorhome. The fuel line had been run between the alt bracket = and the belt, and secured with a hose clamp. I thought the clamp was cutting = the belt when it was wobbling. Then when the Secondary batteries were = installed it was asking at times for maximum amperage. So I disconnected them. = Also the spacing was not correct on the pulley alignment. I got the alignment corrected. BUT, it is still burning belts, the tension should be right = and the alt has been replace with one that rotates freely. Help!!!! =20 TIA Bob Tilley Albany, Ga __________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_009D_01CA03E3.0D0C2640 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Bob,

 

That’s a good one.=A0 =

 

Assuming that everything is = mechanically OK such as:

1.       = pulleys are aligned properly and in good condition (no nicks = or gouges in the belt-contacting surface of any = pulley)

2.       = the proper belt of good quality and proper = tension

3.       = no contamination on belt or = pulleys

 

we can then look at the electrical = side of the system.=A0

 

It is really a long shot, but = let’s assume that the alternator is putting-out too much power due to a malfunctioning regulator which is applying full field current. (which = should not burn-up the belt, but you never know).=A0 To determine if this is = the case, you need to determine how much current the alternator is putting = out.

 

  1. Is there an ammeter? – if so it will most likely be pegged or at = least staying way to the right indicating lots of amps = output
  2. If no ammeter, how about a volt meter? Which will also be reading high = – above 14.5 volts
  3. If there is neither type of meter, you need to measure the system = voltage with a multi-meter.=A0 If this is indeed the problem, you will see = voltage go up and past 14.5 volts as engine RPM = increases.

 

Like I said earlier, this is really = a long shot because I think you would be experiencing other problems with your electrical system if the voltage were getting real = high.

 

 

Best of = luck,

 

Jeff = Luckey

 

 

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson
Sent: Monday, July 13, = 2009 14:31
To: Rotary motors in = aircraft
Subject: [FlyRotary] Re: = Off topic sort of

 

Bob, you say the belt tension “…should be right…”.  Have you verified = that it is.  A sort of rule of thumb (but  no substitute for using a = belt tension measurer) is the belt should not be able to be depressed more = than =BD” at the mid point between the pulleys.  =

 

I presume it is driven by a “V” belt?  A quality belt is being used such as a “Gates” – I have had some imported (and cheap) belts = last less that two flights in my aircraft, so I now use only Gates = belts.

 

 

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of btilley@mchsi.com
Sent: Monday, July 13, = 2009 5:10 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Off = topic sort of

 

 Ok folks,

 

I've got a problem!  I have a motorhome that keeps burning = up altenator belts. They only last about 100 miles. I thought I had found the problem/problems. First someone else had rebuilt the motor when my = parent had the motorhome. The fuel line had been run between the alt bracket and = the belt, and secured with a hose clamp. I thought the clamp was cutting the belt = when it was wobbling. Then when the Secondary batteries were installed it was = asking at times for maximum amperage. So I disconnected them. Also the spacing was = not correct on the pulley alignment. I got the alignment corrected. =  BUT, it is still burning belts, the tension should be right and the alt has been replace with one that rotates freely. =  Help!!!!

 

TIA

Bob Tilley

Albany, Ga



__________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) = __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com

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