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Lynn,
If an extra wheel was run off the alternator or water pump pulley what
would happen if the belt slipped? Bobby -----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of lehanover@aol.com
Sent: Tuesday, June 13, 2006 11:22 AM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Renesis Crank Angle Sensor
-----Original Message-----
From: Bobby J. Hughes <bhughes@qnsi.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, 13 Jun 2006 09:45:24 -0500
Subject: [FlyRotary] Re: Renesis Crank Angle Sensor
Lynn,
I considered an additional wheel on the front of the crank pulley but
installing belts and mounting the sensor so as not to interfere with the
belts would be a problem. Plus loosing the outer belt (my supercharger
belt) might take out the CAS. Need one on the other end of the engine.
Might be able to sandwich one between the prop and Tracy's redrive.
Bobby
I think the advantage of changing the timing is over-rated and the ease
of triggering the ignition systems I have outlined.
In order to just maintain a backup wheel for operating the injection,
you could run the water pump at half speed using a toothed belt, and
make up a double relutctor wheel for mounting on the water pump pulley.
Or, run one off of the alternator pulley. Just as easy.
The alternator can run the same RPM as the crank, and use another stock
reluctor wheel.
We run the oil pump with a one inche by half inch pitch belt. It is
bullet proof. It can even eat a stone from time to time and keep going.
Very strong and cheap in standard sizes. Many pulley sizes (tooth
counts) available too.
Research may show that the full tooth count is not required at all, and
only the gap in a solid disc may be enough. Or, an older front cover
with a CAS installed along with the late front pulley and pickup, to get
two sources for injection timing.
Lynn E. Hanover
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