Mailing List flyrotary@lancaironline.net Message #43427
From: John Downing <downing.j@sbcglobal.net>
Subject: No Spark from Coils
Date: Fri, 11 Jul 2008 23:29:31 -0400
To: flyrotary <flyrotary@lancaironline.net>
Bob W,  today I joined the non-start rotor club, I expected it not to start after following the Saga of Buly and Chris.  We don't have any ignition.  We checked the wires to the coils and , all coil plugs have ground to block on pin A, ground to EC2 on pin B, voltage on Pin D.  On cranking,  Pin C on the volt ohm meter on cranking shows 9 volts, dropping to 7 volts which is a steady reading on not pulsing.  Pin B which is the ground to the EC2, voltage rises to 27 volts.  What is the voltage that we should be seeing on pins B and C and should C show a pushing voltage?  Is the Tach interface that you sent me, which is connected to EC2 pins 20 and 21 for leading coils having anything to do with the fact that the coils are not firing.  JohnD
 
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