---------------------------------------------------------- RV8-List Digest Archive --- Total Messages Posted Thu 10/15/09: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:26 PM - Re: Flap motor - failure, prevention and request (Speedy11@aol.com) 2. 03:59 PM - Re: Re: Flap motor - failure, prevention and request (Matt Dralle) 3. 07:11 PM - Re: Re: Flap motor - failure, prevention and request (scott bilinski) ________________________________ Message 1 _____________________________________ Time: 03:26:01 PM PST US From: Speedy11@aol.com Subject: RV8-List: Re: Flap motor - failure, prevention and request Vince, I've heard of a lot of RV-8 flap motor failures, but never has anyone (that I'm aware of) investigated the reason for them - and certainly none have discovered the wiring problems you spoke of. I am just reaching 20 hours on my RV-8A and I'm going to take your advice and strengthen the wiring. I took care to secure the flimsy wires when building, but I'm going to address the issue again. Thanks for reporting your info. Stan Sutterfield Twenty hours on my RV-8 and the flap motor went south. Inspection reveals t he wire insulation right where the wires enter the motor housing opened up (both wires) and shorted then broke. I suspect a lot of the intermittent op eratio problems posted on the list are due to the wires internally breaking . The cleaning and reinstallation may temporarily cause the wires to reconn ect thus masking the real problem. ________________________________ Message 2 _____________________________________ Time: 03:59:07 PM PST US From: Matt Dralle Subject: Re: RV8-List: Re: Flap motor - failure, prevention and request At 03:15 PM 10/15/2009 Thursday, you wrote: >Vince, >I've heard of a lot of RV-8 flap motor failures, but never has anyone (that I'm aware of) investigated the reason for them - and certainly none have discovered the wiring problems you spoke of. >I am just reaching 20 hours on my RV-8A and I'm going to take your advice and strengthen the wiring. I took care to secure the flimsy wires when building, but I'm going to address the issue again. >Thanks for reporting your info. >Stan Sutterfield > >Twenty hours on my RV-8 and the flap motor went south. Inspection reveals t >he wire insulation right where the wires enter the motor housing opened up >(both wires) and shorted then broke. I suspect a lot of the intermittent op >eratio problems posted on the list are due to the wires internally breaking >. The cleaning and reinstallation may temporarily cause the wires to reconn >ect thus masking the real problem. Here are a couple of pictures of how I wired up my RV-8 flap motor. Notice how the attached red/black wires are secured to the motor with a couple of wire ties and that there is a generous service loop going into the connector. With this arrangement, there is never any movement of the wires going to the motor connector when the flap motor is moving. Seems like it should be pretty long-term durable... Matt Dralle RV-8 #82880 N998RV http://www.mattsrv8.com Adding Rubber Gaskets To Baffling... ________________________________ Message 3 _____________________________________ Time: 07:11:24 PM PST US From: scott bilinski Subject: Re: RV8-List: Re: Flap motor - failure, prevention and request The usual reason for failures, at least years ago, was grease from the thre aded shaft getting into the brushes. This issue is the first I have heard o f. - Scott =0ARV-8a --- On Thu, 10/15/09, Speedy11@aol.com wrote: From: Speedy11@aol.com Subject: RV8-List: Re: Flap motor - failure, prevention and request =0A=0A =0A=0A=0AVince,=0AI've heard of a lot of RV-8 flap motor failures, b ut never has anyone (that =0AI'm aware of) investigated the reason-for th em-- and certainly none =0Ahave discovered the wiring problems you spoke of.=0AI am just reaching 20 hours on my RV-8A and I'm going to take your ad vice =0Aand strengthen the wiring.- I took care to secure the flimsy wire s when =0Abuilding, but I'm going to address the issue again.=0AThanks for reporting your info.=0AStan Sutterfield=0A-=0ATwenty =0A hours on my RV- 8 and the flap motor went south. Inspection reveals t he =0A wire insulation right where the wires enter the motor housing opene d up =0A (both wires) and shorted then broke. I suspect a lot of the intermittent =0A op eratio problems posted on the list are due to the wires internally =0A bre aking . The cleaning and reinstallation may temporarily cause the wires =0A to r econn ect thus masking the real problem.=0A=0A-=0A=0A == =0A=0A=0A ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv8-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV8-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/rv8-list Browse Digests http://www.matronics.com/digest/rv8-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.