---------------------------------------------------------- RV10-List Digest Archive --- Total Messages Posted Wed 10/12/11: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 03:50 AM - Re: Re: Plane Power and Lycoming Pulley Alignment Issue (Bob Leffler) 2. 05:59 AM - Re: Plane Power and Lycoming Pulley Alignment Issue (rleffler) 3. 07:56 AM - Re: Plane Power and Lycoming Pulley Alignment Issue (dmaib@me.com) 4. 08:16 AM - Re: Plane Power and Lycoming Pulley Alignment Issue (rleffler) ________________________________ Message 1 _____________________________________ Time: 03:50:43 AM PST US From: "Bob Leffler" Subject: RE: RV10-List: Re: Plane Power and Lycoming Pulley Alignment Issue Welcomed to the club Lenny. You are the third person that I'm aware of with this situation. We need to identify more if we can. All three vendors stated that this is new information to them. Van's made this change over a year ago, so there should be quite a few out there. Perhaps the others just machined the alternator and moved on? That's not a route I prefer to go down. I'm looking to Van's to make us whole. They specified this recent change of the flywheel without coordination with Plane Power. It would be interested to understand what the guys in Brazil are doing, since they are the reason for the change. Obviously, they aren't using Plane Power alternators. I'm also curious as to what A/C solution they are using. That second V groove belt seems problematic to me. I sent another round of photos to Lycoming last night, per their request. As I get more feedback, I'll pass it along. I may also post to VAF to see if I can attempt to identify how many of us are in this situation. Van's isn't talking at the moment. bob -----Original Message----- From: owner-rv10-list-server@matronics.com [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Lenny Iszak Sent: Tuesday, October 11, 2011 11:35 PM Subject: RV10-List: Re: Plane Power and Lycoming Pulley Alignment Issue --> I'm almost glad i'm not alone! :) Same thing happened to me. I ordered my engine from Vans with the dual groove ring gear because of my A/C compressor. Talked to PlanePower at OSH, and they told me to just have a machinist grind down from the spacer on one end, and use a washer on the other. Haven't done that yet, but it would be awesome if PlanePower provided the correct spacer. There may be another problem though. The dual groove ring gear i got from Lycoming had two different types of groves. One V shape and the other a V shape with a square bottom. Bill at Airflow Systems machined them to the correct shape so I can use the standard belts. The other smaller problem is that the spacers are glued together onto the alternator, which may not be so much fun to remove. If anyone finds a solution to this, please post it on here. Lenny Read this topic online here: http://forums.matronics.com/viewtopic.php?p=354765#354765 ________________________________ Message 2 _____________________________________ Time: 05:59:05 AM PST US Subject: RV10-List: Re: Plane Power and Lycoming Pulley Alignment Issue From: "rleffler" I just posted this on VAF in an attempt to see how many folks are in the same situation. A little over a year or so ago, Van's had Lycoming change the flywheel to a LW-12227 to accomodate a dual belt system to support both the alternator and air conditioning. This part has the alternator belt on the rear and a V shaped groove in front for the A/C. Myself and several others that purchased a YIO-540-D4A5 and the Firewall Forward kit from Van's have noticed an alignment issue. The Plane Power 60a alternator supplied in the FWF kit from Van's has the alternator about 3/16" forward and prevents proper alignment of the belt. Plane Power has stated that none of their alternators will work with a dual belted flywheel. Van's, Plane Power, and Lycoming are currently looking into the issue, so I'm not looking for alternative or creative solutions to this situation. I'm going to let the three companies work through the engineering and come back with a resolution. What I am looking for is to identify anyone that purchased a YIO-540-D4A5 from Van's in the last two years and the answers to the following questions. 1. Do you have a LW-12227 flywheel or another part (i.e. single belted)? 2. Do you have a Plane Power alternator? 3. If you have a Plane Power alternator and a LW-12227 did you have an alignment issue? 4. If you have a LW-12227 and another brand alternator, did you have an alignment issue? The reason I'm collecting this data is all three companies apparently were caught off guard on this issue and claimed to have just heard about it. I'm skeptical that if this Van's specified configuration has been sold for over year, there have to have been others experiencing similiar issues. If not, I want to attempt to understand why? If you don't want your comments to be made public, please PM or email me. thanks, bob -------- Bob Leffler N410BL - FWF RV-10 #40684 http://mykitlog.com/rleffler Read this topic online here: http://forums.matronics.com/viewtopic.php?p=354789#354789 ________________________________ Message 3 _____________________________________ Time: 07:56:15 AM PST US Subject: RV10-List: Re: Plane Power and Lycoming Pulley Alignment Issue From: "dmaib@me.com" > [quote="Tim Olson"]It wouldn't make much sense that if the big difference is the large pulley/ring gear, and by changing that part, you would only screw up one type of alternator. If the plane power and B&C had the belt in the same alignment plane before, then changing only the large pulley type should wreck the alignment of both alternators the same, unless there are some very strange other engine case factors at work. > My bet is that there is a larger variation in large pulleys more than just the single and the double. > Tim > You are right about variations in the dual belt pulleys, Tim. The one I have on my C4B5 for the Flightline AC air conditioning is part number LW 10184 and was supplied by Flightline AC when I bought the AC kit. No alignment issues with a B&C that I used to have and none with the National Air Parts alternator I now have. Both grooves on my pulley are the same. BTW, I changed to the new Flightline AC mounting bracket that moves the alternator back over to the right side of the engine and puts the compressor on the left. This change was due to bearing failure in the tensioner pulleys in the old setup. -------- David Maib RV-10 #40559 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=354802#354802 ________________________________ Message 4 _____________________________________ Time: 08:16:53 AM PST US Subject: RV10-List: Re: Plane Power and Lycoming Pulley Alignment Issue From: "rleffler" I just got a call from Lycoming. They now agree that there is an alignment issue with the LW-12227 and Plane Power's 60a alternator. They are currently working with Plane Power on how to best resolve the issue. They are also reaching out to the mutual customer in Brazil to understand what alternator they are using. They asked to give them a few days to coordinate with everyone. I'll provide updates as I get them. I just wish that Van's would step up and take leadership here instead of passing the buck to Lycoming and Plane Power. bob -------- Bob Leffler N410BL - FWF RV-10 #40684 http://mykitlog.com/rleffler Read this topic online here: http://forums.matronics.com/viewtopic.php?p=354809#354809 ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv10-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV10-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/rv10-list Browse Digests http://www.matronics.com/digest/rv10-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.