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Sorry Jerry I misunderstood the conversation.
Bill
-----Original Message-----
From: Jerry Hey <jerryhey@earthlink.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, 31 Jul 2007 4:23 pm
Subject: [FlyRotary] Re: Crank trigger
Yes, that is what I have in mind. I had no intention of only firing one plug. I did not mention a timing split either???? :) Jerry
On Jul 31, 2007, at 6:59 PM, wrjjrs@aol.com wrote:
Jerry,
You really need to fire both plugs! You don't need a timing split > to get best power. A timing split will help fuel efficiency.
Bill Jepson
-----Original Message-----
From: Jerry Hey <jerryhey@earthlink.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, 31 Jul 2007 10:30 am
Subject: [FlyRotary] Re: Crank trigger
Thanks Lynn, I think I will do it this way. Re the single rotor, > is it possible to use two coils (not at the same time of course) > each one firing both plugs, to provide redundancy? The switch on > the panel would be one or the other or off. Jerry
On Jul 29, 2007, at 9:00 PM, Lehanover@aol.com wrote:
Here is the picture of the crank trigger for rotaries. The degree > wheel on the front of this makes timing a real treat. The wheel can > be oriented so that the stock pointer is pointing at 26 degrees (or > whatever you want the timing to be) when the reluctor is in front > of the pickup for number one housing. This pickup would be on the > plug side of the engine. The pickup for the number two housing will > be mounted on the exhaust side.
Both leading and trailing plugs will fire at the same time. No > distribution of the trailing plugs is required.
No split between leading and trailing is required.
You can use two coils per housing as drawn, or use a double ended > coil from a motor cycle. If using MSDs,
use one of their coils.
Timing accuracy is astounding. A timing light looks like a flash > light shining on a stopped engine.
Chrysler amplifiers are about $20.00 each. Two required. Chrysler > (Dodge Plymouth and others) pickups (from the distributor) are > about $5.00 each. Two required Easy hookup. Short wires, Mount the > coils beside the plugs. Amplifiers (or MSDs) can be mounted > remotely. Wiring diagrams in a Motors Manual at the library.
Lynn E. Hanover
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