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No Spark...Need help please....

Joined
Nov 23, 2002
Messages
1,060
Location
Motorcity USA
Corvette
1973 L-48 Coupe
So I had to replace my original starter and had a few problems doing it. To save lots of time detailing here I will cut to the chase....

I have it turning over and have no spark at the plugs now.....Im just looking for a place to start to check where the spark ends, and how to go about it....it ran well before doing the job so im sure i have a wire or something crossed and just need an easy way of running it down by process of elimination.

Thanks in advance , Chas:cool
 

craig32

Well-known member
Joined
Sep 30, 2004
Messages
482
Location
PA
Corvette
1981 repainted black coupe
Chas,
Are we talking points and coil, or electronic ignition? The older ones have the battery lug and two small posts on the starter solenoid. (newer ones only have 1, I'm told) The inside post engages the starter, and the outside one sends spark to the coil while it is cranking, and once it starts it gets power from the resistored wire. This is probably the mis-routed wire. Good luck!

Craig
 

gmjunkie

Well-known member
Joined
Nov 11, 2004
Messages
4,547
Location
Old Fort NC/Vero Beach FL
Corvette
03 Z-51,78 L82 Coupe
Chas,
Are we talking points and coil, or electronic ignition? The older ones have the battery lug and two small posts on the starter solenoid. (newer ones only have 1, I'm told) The inside post engages the starter, and the outside one sends spark to the coil while it is cranking, and once it starts it gets power from the resistored wire. This is probably the mis-routed wire. Good luck!

Craig
:upthumbs :upthumbs :upthumbs
 
Joined
Nov 23, 2002
Messages
1,060
Location
Motorcity USA
Corvette
1973 L-48 Coupe
Many Thanks for the info....This is a converted old to electronic ignition i had done... so your saying i have a wire crossed at the starter?
I had my son do the starter as my back wont allow me to get under it right now....Thanks again:beer :beer Chas
 
Joined
Jan 1, 2002
Messages
7,246
Location
Washington, Michigan
Corvette
'67 Marina Blue Convertible
The coil bypass wire isn't connected properly at the starter solenoid. The inboard small "S" terminal should only have the 12-ga. purple wire on it that energizes the solenoid, and the outboard small "R" terminal should only have a 20-ga. yellow wire on it - that's the circuit that carries power to the ignition while the engine is cranking. If that yellow wire isn't connected to the "R" terminal (or is damaged or broken), you can crank it all day and it'll never start.

:beer
 
Joined
Nov 23, 2002
Messages
1,060
Location
Motorcity USA
Corvette
1973 L-48 Coupe
Many Thanks....Im going out there in a few and will get back with the results.

Chas:beer
 
Joined
Nov 23, 2002
Messages
1,060
Location
Motorcity USA
Corvette
1973 L-48 Coupe
Well the wiring was correct after all...the module was toast in the conversion kit that was installed a few years ago....purrin like a kitten now!
Many thanks for your help guys
Chas
 

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