C2 Electrical/Ignition start problem
Thread Starter
Instructor
Joined: May 2003
Posts: 125
Likes: 0
From: Lexington KY
C2 Electrical/Ignition start problem
When I start the car it cranks over fine but it doesn't try to fire until I actually release the key from the start position...It always starts, but if I just conitnue to hold in the start position it will crank but won't start.
It's a unrestored 66 with the original transistor ignition and otherwise all original wiring, starter and ignition switch. Any thoughts gang?
It's a unrestored 66 with the original transistor ignition and otherwise all original wiring, starter and ignition switch. Any thoughts gang?
Le Mans Master
Joined: Nov 2000
Posts: 7,246
Likes: 21
From: Going too fast over the hill. Iowa
I think the pink wire from the starter solenoid to the coil is broken, or the solenoid is not supplying 12volts to it. The wire supplies the 12volt bypass to the coil. When you release the key, the coil gets 8volt power through the ballast resistor on the bulkhead above the LH valve cover.
Pro
Joined: Jul 2001
Posts: 710
Likes: 0
From: Thornton Co
Originally Posted by iniguy
When I start the car it cranks over fine but it doesn't try to fire until I actually release the key from the start position...It always starts, but if I just conitnue to hold in the start position it will crank but won't start.
It's a unrestored 66 with the original transistor ignition and otherwise all original wiring, starter and ignition switch. Any thoughts gang?
It's a unrestored 66 with the original transistor ignition and otherwise all original wiring, starter and ignition switch. Any thoughts gang?
Le Mans Master
Joined: Jan 2000
Posts: 8,918
Likes: 27
From: New Hill NC
There is a wire from the small outermost terminal on the starter to the + side of the coil on all non transistor ignition cars. It is off or the starter solinoid is bad. That is the bypass circuit. This applies full 12V to the coil when cranking. It should fire when the solinoid is engaged.
Thread Starter
Instructor
Joined: May 2003
Posts: 125
Likes: 0
From: Lexington KY
Originally Posted by Milehigh66
This is usually a problem when one changes out the T.I. circuit in the box with the solid state system. I had this problem and didn't have the patients to deal with it and sent it back. Ralph, a friend of mine had the same problem and called the company and his fires up correctly now. I bet you have the replacement circuit in the front box, you wouldn't be able to know unless you took it apart and saw the black solid state circuitry. If you e-mailed Ralph he could walk you through it to make it work correctly, he is a great guy with tons of vette knowledge and probably wouldn't mind an extra e-mail on this. his e-mail is Rponfick@aol.com . He has forgotten more about vettes than I will ever know. I bet he can clear up your problem
Team Owner
Joined: Oct 2000
Posts: 38,897
Likes: 1,927
From: Washington Michigan
Lots of good T.I. info/diagrams etc. at www.tispecialty.com - Dave Fiedler's site - he's the T.I. "guru". 
Racer
Joined: Mar 2005
Posts: 253
Likes: 58
Went through a similar situation a while back,ordered a reconditioned
origional circuit board from Dave Fiedler at T.I. Specialty.Opening and
switching the parts in the T.I. Amplifier is very easy.By the way Dave
is a great guy to deal with.
435er
origional circuit board from Dave Fiedler at T.I. Specialty.Opening and
switching the parts in the T.I. Amplifier is very easy.By the way Dave
is a great guy to deal with.
435er
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From: Camp Verde AZ
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Is there something different about an ignition switch that is for a TI system?
I know on regular paints, you have the balalst,and the solenoid powers the coil while in crank mode bypassing the ballast resistor, and then run position directs the coil current thru the ballast.
Is a TI ignition switch different somehow in that the starter solenoid does not supply power to the coil in crank mode? And if so, why?
Thanks,
Doug (the dinosuar)
I know on regular paints, you have the balalst,and the solenoid powers the coil while in crank mode bypassing the ballast resistor, and then run position directs the coil current thru the ballast.
Is a TI ignition switch different somehow in that the starter solenoid does not supply power to the coil in crank mode? And if so, why?
Thanks,
Doug (the dinosuar)