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Ed
Of course you are correct due to the single drive (as usual).failure of that drive would need some major internal problem. The shaft turn freely supported by 2 ball bearings with no load on it,so the odds are in my favor. In my opinion its still better than only one. For the space between the drive & flex plate, I'm looking at adapting an outboard alternator & at the rear a Glimmer belt drive for the alternator, water & dry sump pump drive (separate belts for the DS)
Georges B.
-------Original Message-------
Date: 05/06/05 10:09:14
Subject: [FlyRotary] Re: Emailing: Possies & CAS 007, Possies & CAS 008, Possies & CAS 009
Very Interesting approach, Georges.
Simpler than trying to adapt the twin distributor 12A front mount. However, with both on the same shaft not certain you have true redundancy - in my opinion the shaft is more likely to fail than the simply electrical circuit used to sense the rotation. For true redundancy, I would think you would want to put a flywheel/pulley angle sensor - probably flywheel end where a flopping belt wouldn't tear it out.
Ed
----- Original Message -----
Sent: Friday, May 06, 2005 12:23 PM
Subject: [FlyRotary] Emailing: Possies & CAS 007, Possies & CAS 008, Possies & CAS 009
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Group
I gave up on the 12a front cover to have igniter redundancy.The first photo is the semi completed unit (need to install upper shaft). Second is the adaptor & 3rd (out of focus)is the upper shaft with the center drilled out for the mounting bolt. The shaft has a ball bearing for support at the top (great support) the bearing retainer is left out as the upper shaft locates the bearing . A star washer between the two shaft will lock the two together.(note: machining accuracy is very important)
The amount of space required shouldn't be a problem on any installation
Georges B.
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