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rleffler
Joined: 05 Nov 2006
Posts: 680
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 Posted: Mon Oct 10, 2011 1:48 pm Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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I’ve been talking with Dick Carmichael at Plane Power about an alignment issue on my RV-10 between the pulley on the Plane Power 60a alternator and the pulley that came with my IO-540-D4A5, which were both purchased through Van’s. I’ve attached a photo for review. In the photo, I’ve also placed a square against the back of the Lycoming pulley.
As you can plainly see the alternator belt is out of alignment. In talking with Dick, he stated that this is due to the dual belted pulley that came with my engine. He further stated that he couldn’t guarantee that the belt would stay on and it clearly would have a shortened life due to the misalignment.
Since there are no user adjustments for this alignment with the Boss mount, I’m being told by Plane Power to use a single belt pulley on the engine.
Is this the standard pulley for an IO-540-D4A5? Plane Power is giving me the indication that this is not the case. Is there the possibility that the incorrect part was substituted by Lycoming?
Has anyone else run into this problem? If so, what did you do?
Thanks,
bob
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Bob Leffler
N410BL - Phase I
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Bob Turner
Joined: 03 Jan 2009
Posts: 885
Location: Castro Valley, CA
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| Posted: Mon Oct 10, 2011 1:59 pm Post subject: Re: Plane Power and Lycoming Pulley Alignment Issue |
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I have the YIO-540D4A5 (no certification paperwork) bought thru Vans, and it came with a single belt pulley.
I have found Williamsport to be very accomodating; my engine came with a light weight starter and I requested it be changed to the heavier unit (per the starter company's recommendation) and Lycoming immediately sent one to me.
I'd ask them for the correct pulley.
Bob
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Bob Turner
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Deems Davis
Joined: 09 Jan 2006
Posts: 925
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| Posted: Mon Oct 10, 2011 2:44 pm Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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Bob, Why do you have a dual belt prop pulley? The standard pulley is a single belt. The only reason I’m aware of for having a dual belt is to accommodate an A/C compressor. For those installations w/ A/C they have been relocating the alternator to the other side of the engine and placing the compressor where the old alternator was?
Deems
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Bob Leffler
Sent: Monday, October 10, 2011 2:37 PM
To: rv10-list(at)matronics.com
Subject: Plane Power and Lycoming Pulley Alignment Issue
I’ve been talking with Dick Carmichael at Plane Power about an alignment issue on my RV-10 between the pulley on the Plane Power 60a alternator and the pulley that came with my IO-540-D4A5, which were both purchased through Van’s. I’ve attached a photo for review. In the photo, I’ve also placed a square against the back of the Lycoming pulley.
As you can plainly see the alternator belt is out of alignment. In talking with Dick, he stated that this is due to the dual belted pulley that came with my engine. He further stated that he couldn’t guarantee that the belt would stay on and it clearly would have a shortened life due to the misalignment.
Since there are no user adjustments for this alignment with the Boss mount, I’m being told by Plane Power to use a single belt pulley on the engine.
Is this the standard pulley for an IO-540-D4A5? Plane Power is giving me the indication that this is not the case. Is there the possibility that the incorrect part was substituted by Lycoming?
Has anyone else run into this problem? If so, what did you do?
Thanks,
bob
[quote][b]
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rleffler
Joined: 05 Nov 2006
Posts: 680
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| Posted: Mon Oct 10, 2011 3:12 pm Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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That’s what Lycoming shipped when I ordered the engine through Van’s. It wasn’t an option that I chose.
Gus at Van’s stated that is what Lycoming now ships on the YIO-540-D4A5. However, I know of at least two other folks that got the single pulley. Gus stated that Lycoming would swap it out for me.
bob
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Deems Davis
Sent: Monday, October 10, 2011 6:40 PM
To: rv10-list(at)matronics.com
Subject: RE: Plane Power and Lycoming Pulley Alignment Issue
Bob, Why do you have a dual belt prop pulley? The standard pulley is a single belt. The only reason I’m aware of for having a dual belt is to accommodate an A/C compressor. For those installations w/ A/C they have been relocating the alternator to the other side of the engine and placing the compressor where the old alternator was?
Deems
From: owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) [mailto:owner-rv10-list-server(at)matronics.com] ([email][mailto:owner-rv10-list-server(at)matronics.com][/email]) On Behalf Of Bob Leffler
Sent: Monday, October 10, 2011 2:37 PM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: Plane Power and Lycoming Pulley Alignment Issue
I’ve been talking with Dick Carmichael at Plane Power about an alignment issue on my RV-10 between the pulley on the Plane Power 60a alternator and the pulley that came with my IO-540-D4A5, which were both purchased through Van’s. I’ve attached a photo for review. In the photo, I’ve also placed a square against the back of the Lycoming pulley.
As you can plainly see the alternator belt is out of alignment. In talking with Dick, he stated that this is due to the dual belted pulley that came with my engine. He further stated that he couldn’t guarantee that the belt would stay on and it clearly would have a shortened life due to the misalignment.
Since there are no user adjustments for this alignment with the Boss mount, I’m being told by Plane Power to use a single belt pulley on the engine.
Is this the standard pulley for an IO-540-D4A5? Plane Power is giving me the indication that this is not the case. Is there the possibility that the incorrect part was substituted by Lycoming?
Has anyone else run into this problem? If so, what did you do?
Thanks,
bob | Quote: | | http://www.matronics.com/Navigator?RV10-List |
01234567
[quote][b]
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Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler |
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Deems Davis
Joined: 09 Jan 2006
Posts: 925
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| Posted: Mon Oct 10, 2011 3:53 pm Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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Did you get a parts/o-haul manual with your engine? I’ll bet it doesn’t list a dual belt as standard. Go for the exchange. It’s disappointing to hear Van’s give crappy advice/info.
Deems
You might want to see what a single pulley flywheel goes for, and sell the dual pulley, When I ws considering A/C and looking for a dual pulley, it was going to cost me $1200.
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Bob Leffler
Sent: Monday, October 10, 2011 4:02 PM
To: rv10-list(at)matronics.com
Subject: RE: Plane Power and Lycoming Pulley Alignment Issue
That’s what Lycoming shipped when I ordered the engine through Van’s. It wasn’t an option that I chose.
Gus at Van’s stated that is what Lycoming now ships on the YIO-540-D4A5. However, I know of at least two other folks that got the single pulley. Gus stated that Lycoming would swap it out for me.
bob
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Deems Davis
Sent: Monday, October 10, 2011 6:40 PM
To: rv10-list(at)matronics.com
Subject: RE: Plane Power and Lycoming Pulley Alignment Issue
Bob, Why do you have a dual belt prop pulley? The standard pulley is a single belt. The only reason I’m aware of for having a dual belt is to accommodate an A/C compressor. For those installations w/ A/C they have been relocating the alternator to the other side of the engine and placing the compressor where the old alternator was?
Deems
From: owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) [mailto:owner-rv10-list-server(at)matronics.com] ([email][mailto:owner-rv10-list-server(at)matronics.com][/email]) On Behalf Of Bob Leffler
Sent: Monday, October 10, 2011 2:37 PM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: Plane Power and Lycoming Pulley Alignment Issue
I’ve been talking with Dick Carmichael at Plane Power about an alignment issue on my RV-10 between the pulley on the Plane Power 60a alternator and the pulley that came with my IO-540-D4A5, which were both purchased through Van’s. I’ve attached a photo for review. In the photo, I’ve also placed a square against the back of the Lycoming pulley.
As you can plainly see the alternator belt is out of alignment. In talking with Dick, he stated that this is due to the dual belted pulley that came with my engine. He further stated that he couldn’t guarantee that the belt would stay on and it clearly would have a shortened life due to the misalignment.
Since there are no user adjustments for this alignment with the Boss mount, I’m being told by Plane Power to use a single belt pulley on the engine.
Is this the standard pulley for an IO-540-D4A5? Plane Power is giving me the indication that this is not the case. Is there the possibility that the incorrect part was substituted by Lycoming?
Has anyone else run into this problem? If so, what did you do?
Thanks,
bob012345678901234567
[quote][b]
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jesse(at)saintaviation.co
Guest
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| Posted: Mon Oct 10, 2011 3:54 pm Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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That definitely is not right. I've never seen that problem before. Could the alternator bracket is really to only variable that I can think of. Can you get some measurements off that and have people on the list compare?
As Deems said, I have only seen the dual belt pulley used w A/C, although in the most recent installation I have seen the compressor was on the left side and the alternator stayed on the right. That was an RDD installation of the Flightline A/C system.
I think somehow your alternator bracket is wrong.
Jesse Saint
I-TEC, Inc.
jesse(at)itecusa.org
www.itecusa.org
www.mavericklsa.com
C: 352-427-0285
O: 352-465-4545
F: 815-377-3694
Sent from my iPhone
On Oct 10, 2011, at 5:36 PM, "Bob Leffler" <rv(at)thelefflers.com> wrote:
[quote] I’ve been talking with Dick Carmichael at Plane Power about an alignment issue on my RV-10 between the pulley on the Plane Power 60a alternator and the pulley that came with my IO-540-D4A5, which were both purchased through Van’s. I’ve attached a photo for review. In the photo, I’ve also placed a square against the back of the Lycoming pulley
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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rv10flyer
Joined: 25 Aug 2009
Posts: 364
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| Posted: Mon Oct 10, 2011 5:21 pm Post subject: Re: Plane Power and Lycoming Pulley Alignment Issue |
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This change of std pulley shipment started fall 2010 or before. I have the same dual groove/pp setup as Bob.
Not only are the pulleys out of alignment fore-aft, PP's bracket has the pulley/flywheel not in the same plane. Very unacceptable engineering and lack of communication between Vans/Lyc/PP.
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Jim Combs
Joined: 24 Jan 2010
Posts: 140
Location: Lexington, Ky
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| Posted: Mon Oct 10, 2011 6:33 pm Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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Wayne Gillespie also has the same issue. Vans or Lycoming had better get the word out they have a serious field problem about to show up! Wonder how many are out there and no one has spotted the issue. How many are flying or about to?
Wayne invited several RV-builders to pre-inspect his build prior to DAR inspection. We found the same issue on his engine. He is going to correct it prior to flight. Machine new spacers to relocate the alternator slightly aft. But is a problem that must be solved prior to flight.
Jim Combs
N312F - 300+ hours
Do Not Archive
On Mon, Oct 10, 2011 at 5:36 PM, Bob Leffler <rv(at)thelefflers.com (rv(at)thelefflers.com)> wrote:
[quote]
I’ve been talking with Dick Carmichael at Plane Power about an alignment issue on my RV-10 between the pulley on the Plane Power 60a alternator and the pulley that came with my IO-540-D4A5, which were both purchased through Van’s. I’ve attached a photo for review. In the photo, I’ve also placed a square against the back of the Lycoming pulley.
As you can plainly see the alternator belt is out of alignment. In talking with Dick, he stated that this is due to the dual belted pulley that came with my engine. He further stated that he couldn’t guarantee that the belt would stay on and it clearly would have a shortened life due to the misalignment.
Since there are no user adjustments for this alignment with the Boss mount, I’m being told by Plane Power to use a single belt pulley on the engine.
Is this the standard pulley for an IO-540-D4A5? Plane Power is giving me the indication that this is not the case. Is there the possibility that the incorrect part was substituted by Lycoming?
Has anyone else run into this problem? If so, what did you do?
Thanks,
bob
[b]
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RV-10 -> N312F - Flying as of 12/2008 |
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greghale
Joined: 10 Jan 2007
Posts: 91
Location: Tulsa, Oklahoma
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| Posted: Mon Oct 10, 2011 7:34 pm Post subject: Re: Plane Power and Lycoming Pulley Alignment Issue |
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I have the dual flywheel pulley on my rv10 because I have air conditioning. The Plane Power pulley was way off when I first installed it. I had to make a different spacer and mount the alternator on the back side of the bracket to get the belt in alignment. If you are interested in pictures, let me know. I will have my cowling off next week.
The alternator is mounted on the right side of the engine (per Vans) and the compressor is mounted on the left side.
Greg...
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Greg Hale rv10 -- N210KH
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rleffler
Joined: 05 Nov 2006
Posts: 680
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| Posted: Tue Oct 11, 2011 2:33 am Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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Putting together comments from several people, it appears that Van’s and Lycoming made this change about two years ago. The comment that I got was Van’s was that most of their engines are going to Brazil and they use a/c. Somebody made an executive decision and didn’t inform Plane Power.  In talking to them, they are very anxious to solve this problem, but appeared to be caught off guard. I guess folks are modifying brackets and spacers themselves.
From: owner-rv10-list-server(at)matronics.com [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Jesse Saint
Sent: Monday, October 10, 2011 7:51 PM
To: rv10-list(at)matronics.com
Subject: Re: Plane Power and Lycoming Pulley Alignment Issue
That definitely is not right. I've never seen that problem before. Could the alternator bracket is really to only variable that I can think of. Can you get some measurements off that and have people on the list compare?
As Deems said, I have only seen the dual belt pulley used w A/C, although in the most recent installation I have seen the compressor was on the left side and the alternator stayed on the right. That was an RDD installation of the Flightline A/C system.
I think somehow your alternator bracket is wrong.
Jesse Saint
I-TEC, Inc.
jesse(at)itecusa.org (jesse(at)itecusa.org)
www.itecusa.org
www.mavericklsa.com
C: 352-427-0285
O: 352-465-4545
F: 815-377-3694
Sent from my iPhone
On Oct 10, 2011, at 5:36 PM, "Bob Leffler" <rv(at)thelefflers.com (rv(at)thelefflers.com)> wrote:
| Quote: |
I’ve been talking with Dick Carmichael at Plane Power about an alignment issue on my RV-10 between the pulley on the Plane Power 60a alternator and the pulley that came with my IO-540-D4A5, which were both purchased through Van’s. I’ve attached a photo for review. In the photo, I’ve also placed a square against the back of the Lycoming pulley.
As you can plainly see the alternator belt is out of alignment. In talking with Dick, he stated that this is due to the dual belted pulley that came with my engine. He further stated that he couldn’t guarantee that the belt would stay on and it clearly would have a shortened life due to the misalignment.
Since there are no user adjustments for this alignment with the Boss mount, I’m being told by Plane Power to use a single belt pulley on the engine.
Is this the standard pulley for an IO-540-D4A5? Plane Power is giving me the indication that this is not the case. Is there the possibility that the incorrect part was substituted by Lycoming?
Has anyone else run into this problem? If so, what did you do?
Thanks,
bob
<IMG_1650.JPG>
http://www.matronics.com/Navigator?RV10-List |
01234567
[quote][b]
| | - The Matronics RV10-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?RV10-List |
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_________________
Bob Leffler
N410BL - Phase I
http://mykitlog.com/rleffler |
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jesse(at)saintaviation.co
Guest
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| Posted: Tue Oct 11, 2011 3:42 am Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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I installed a dual-pulley ring gear with a standard Plane Power alternator and it lined up perfectly. I wonder what the difference could be.
Jesse Saint
Saint Aviation, Inc.
jesse(at)saintaviation.com (jesse(at)saintaviation.com)
C: 352-427-0285
F: 815-377-3694
On Oct 11, 2011, at 6:22 AM, Bob Leffler wrote:
| Quote: | Putting together comments from several people, it appears that Van’s and Lycoming made this change about two years ago. The comment that I got was Van’s was that most of their engines are going to Brazil and they use a/c. Somebody made an executive decision and didn’t inform Plane Power. In talking to them, they are very anxious to solve this problem, but appeared to be caught off guard. I guess folks are modifying brackets and spacers themselves.
From: owner-rv10-list-server(at)matronics.com (owner-rv10-list-server(at)matronics.com) [mailto:owner-rv10-list-server(at)matronics.com] On Behalf Of Jesse Saint
Sent: Monday, October 10, 2011 7:51 PM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: Re: Plane Power and Lycoming Pulley Alignment Issue
That definitely is not right. I've never seen that problem before. Could the alternator bracket is really to only variable that I can think of. Can you get some measurements off that and have people on the list compare?
As Deems said, I have only seen the dual belt pulley used w A/C, although in the most recent installation I have seen the compressor was on the left side and the alternator stayed on the right. That was an RDD installation of the Flightline A/C system.
I think somehow your alternator bracket is wrong.
Jesse Saint
I-TEC, Inc.
jesse(at)itecusa.org (jesse(at)itecusa.org)
www.itecusa.org
www.mavericklsa.com
C: 352-427-0285
O: 352-465-4545
F: 815-377-3694
Sent from my iPhone
On Oct 10, 2011, at 5:36 PM, "Bob Leffler" <rv(at)thelefflers.com (rv(at)thelefflers.com)> wrote:
| Quote: | I’ve been talking with Dick Carmichael at Plane Power about an alignment issue on my RV-10 between the pulley on the Plane Power 60a alternator and the pulley that came with my IO-540-D4A5, which were both purchased through Van’s. I’ve attached a photo for review. In the photo, I’ve also placed a square against the back of the Lycoming pulley.
As you can plainly see the alternator belt is out of alignment. In talking with Dick, he stated that this is due to the dual belted pulley that came with my engine. He further stated that he couldn’t guarantee that the belt would stay on and it clearly would have a shortened life due to the misalignment.
Since there are no user adjustments for this alignment with the Boss mount, I’m being told by Plane Power to use a single belt pulley on the engine.
Is this the standard pulley for an IO-540-D4A5? Plane Power is giving me the indication that this is not the case. Is there the possibility that the incorrect part was substituted by Lycoming?
Has anyone else run into this problem? If so, what did you do?
Thanks,
bob
<IMG_1650.JPG>
http://www.matronics.com/Navigator?RV10-List |
01234567
8
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[quote][b]
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capsteve(at)iflyrv10.com
Guest
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| Posted: Tue Oct 11, 2011 5:12 am Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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Bob,
Seems to me that the easiest fix would be to machine the difference from the back of the alternator pulley to bring the belt into alignment.
Whether there is a spacer, or if the pulley has a one piece boss, should be easier and cheaper than hunting down a new flywheel..
Take a look, if you need it machined and don’t have a quick resource locally , take a measurement and send it this way.
(one other thought is that you may be able to flip the alt pulley if it has a boss and place an appropriate new spacer under it to correct your issues.
just make sure there is enough thread on the alt shaft for the nut) (assuming it has a keyway rather than a taper )
Steve DiNieri
From: Bob Leffler (rv(at)thelefflers.com)
Sent: Monday, October 10, 2011 5:36 PM
To: rv10-list(at)matronics.com (rv10-list(at)matronics.com)
Subject: Plane Power and Lycoming Pulley Alignment Issue
I’ve been talking with Dick Carmichael at Plane Power about an alignment issue on my RV-10 between the pulley on the Plane Power 60a alternator and the pulley that came with my IO-540-D4A5, which were both purchased through Van’s. I’ve attached a photo for review. In the photo, I’ve also placed a square against the back of the Lycoming pulley.
As you can plainly see the alternator belt is out of alignment. In talking with Dick, he stated that this is due to the dual belted pulley that came with my engine. He further stated that he couldn’t guarantee that the belt would stay on and it clearly would have a shortened life due to the misalignment.
Since there are no user adjustments for this alignment with the Boss mount, I’m being told by Plane Power to use a single belt pulley on the engine.
Is this the standard pulley for an IO-540-D4A5? Plane Power is giving me the indication that this is not the case. Is there the possibility that the incorrect part was substituted by Lycoming?
Has anyone else run into this problem? If so, what did you do?
Thanks,
bob
[quote][b]
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pilotdds(at)aol.com
Guest
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| Posted: Tue Oct 11, 2011 6:43 am Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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Hey Steve what is the status of the other Iflyrv10 projects,
--
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rv10flyer
Joined: 25 Aug 2009
Posts: 364
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| Posted: Tue Oct 11, 2011 7:11 am Post subject: Re: Plane Power and Lycoming Pulley Alignment Issue |
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Machining the pulley may be an option after engineering approval from PP. I would not want to weaken the pulley too much.
While waiting for all of this to get hashed out I am going to pull the rear spacer and machine it down approx .120 then add two 7/16" AN washers to front spacer. Also I am going to straighten tension arm.
Once PP comes up with a fix I can swap out the parts.
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rleffler
Joined: 05 Nov 2006
Posts: 680
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| Posted: Tue Oct 11, 2011 7:32 am Post subject: Re: Plane Power and Lycoming Pulley Alignment Issue |
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So I have had conversations with Vans, Lycoming, and Plane Power.
Vans passed the buck even though they made the change to go with the dual pulley flywheel about two years ago from what I can tell.
In talking with Lycoming, they were unaware of the issue with the Plane Power alternator not aligning with the dual pulley flywheel. It has been escalated to their engineering department and I'm awaiting a response from them at the moment. The mentioned that 2/3's of the YIO-540s sold to Vans are going to Brazil.
Plane Power states that there alternator will not align with the dual pulley flywheel from Lycoming. They are anxious to resolve this issue. Both Vans and Lycoming are big customers of theirs. They were going to call both Vans and Lycoming today to discuss the details. (Jesse they were curious as to how you got your's to align without modification)
At the moment, there appears to be two solutions.
1. Van's must indicate an option to choose whether or not you need a single or dual pulley flywheel.
2. Plane Power must fabricate a new bracket for the dual pulley flywheel.
Both Lycoming and Plan Power seemed frustrated since Van's only wants to order a single sku from them. It appears that Van's made this change, but didn't coordinate with both company's engineering departments to ensure that everything worked.
At this point in time, I'm awaiting responses from all three vendors to see how the choose to resolve this issue. I'll keep everyone posted.
bob
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Bob Leffler
N410BL - Phase I
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n223rv(at)wolflakeairport
Guest
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| Posted: Tue Oct 11, 2011 8:40 am Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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I had a dual pulley, but couldn't use it with the Lightspeed ignition circuit board, it would not fit under the flywheel. So may be something to consider if you are going the Lightspeed route..... Unless the newer flywheels are bigger??
-Mike Kraus
RV-10, Flying
Sent from my iPhone
On Oct 11, 2011, at 11:32 AM, "rleffler" <rv(at)thelefflers.com> wrote:
| Quote: |
So I have had conversations with Vans, Lycoming, and Plane Power.
Vans passed the buck even though they made the change to go with the dual pulley flywheel about two years ago from what I can tell.
In talking with Lycoming, they were unaware of the issue with the Plane Power alternator not aligning with the dual pulley flywheel. It has been escalated to their engineering department and I'm awaiting a response from them at the moment. The mentioned that 2/3's of the YIO-540s sold to Vans are going to Brazil.
Plane Power states that there alternator will not align with the dual pulley flywheel from Lycoming. They are anxious to resolve this issue. Both Vans and Lycoming are big customers of theirs. They were going to call both Vans and Lycoming today to discuss the details. (Jesse they were curious as to how you got your's to align without modification)
At the moment, there appears to be two solutions.
1. Van's must indicate an option to choose whether or not you need a single or dual pulley flywheel.
2. Plane Power must fabricate a new bracket for the dual pulley flywheel.
Both Lycoming and Plan Power seemed frustrated since Van's only wants to order a single sku from them. It appears that Van's made this change, but didn't coordinate with both company's engineering departments to ensure that everything worked.
At this point in time, I'm awaiting responses from all three vendors to see how the choose to resolve this issue. I'll keep everyone posted.
bob
--------
Bob Leffler
N410BL - FWF
RV-10 #40684
http://mykitlog.com/rleffler
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=354679#354679
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aircarepros(at)yahoo.com
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| Posted: Tue Oct 11, 2011 9:07 am Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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John at Flightline here. The best PMA part for a dual groove pulley is the
LW-10184. It retains the original groove from the Lyco 540 10" pulley, as
well as adds the one we need for ac. I can't speak to the alternator
alignment as there are so many, but I haven't heard any complaints about the
belt alignment of the Plane Power or the B&C until this thread. We have had
numerous instances where people have thought that they were being sold a
dual groove pulley with their engine only to find out that it was a trim
groove, not a belt groove to shave weight from the pulley. You might be
looking at such a situation here also. The true 2 groove pulleys are
exactly the same at the bottom of the groove. The single with the shaved
groove is different and typically places the belt right up against the body
of the ring gear support.
The fore mentioned 2 groove (LW-10184) is ideal for lightspeed acceptance
also.
--
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jesse(at)saintaviation.co
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| Posted: Tue Oct 11, 2011 9:23 am Post subject: Plane Power and Lycoming Pulley Alignment Issue |
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That's the one that I installed.
Jesse Saint
Saint Aviation, Inc.
jesse(at)saintaviation.com
C: 352-427-0285
F: 815-377-3694
On Oct 11, 2011, at 1:04 PM, John Strain wrote:
[quote]
John at Flightline here. The best PMA part for a dual groove pulley is the
LW-10184. It retains the original groove from the Lyco 540 10" pulley, as
well as adds the one we need for ac. I can't speak to the alternator
alignment as there are so many, but I haven't heard any complaints about the
belt alignment of the Plane Power or the B&C until this thread. We have had
numerous instances where people have thought that they were being sold a
dual groove pulley with their engine only to find out that it was a trim
groove, not a belt groove to shave weight from the pulley. You might be
looking at such a situation here also. The true 2 groove pulleys are
exactly the same at the bottom of the groove. The single with the shaved
groove is different and typically places the belt right up against the body
of the ring gear support.
The fore mentioned 2 groove (LW-10184) is ideal for lightspeed acceptance
also.
--
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rv10flyer
Joined: 25 Aug 2009
Posts: 364
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| Posted: Tue Oct 11, 2011 9:25 am Post subject: Re: Plane Power and Lycoming Pulley Alignment Issue |
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Mine is LW-12227. The fwd groove is a vee shape and the rear is a u shape. Maybe just for reducing weight but the rear u shaped groove is approx .120" aft of PP alt pulley groove.
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Wayne G. |
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rv10flyer
Joined: 25 Aug 2009
Posts: 364
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| Posted: Tue Oct 11, 2011 9:30 am Post subject: Re: Plane Power and Lycoming Pulley Alignment Issue |
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O.D. of my pulley is approx 9" and I had to purchase a Gates 7328 belt to fit.
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