Lancia Beta Forum

Technical stuff => Electrical => Topic started by: droptop on March 09, 2014, 08:40:56 AM



Title: Bosch ignition coil terminal identification
Post by: droptop on March 09, 2014, 08:40:56 AM
I'm commencing work on my new spider project and the first item of business is changing the coil.
The car had a Ford coil with the ford bullet style connections connected to the original spade terminals via insulating tape so at least the original terminals are still intact.
Anyway, I have two Bosch coils of the correct type but instead of "+" and "-" they are marked "1" and "15" and even the wiring diagrams show the polarity as symbols rather than the numbers.
Can anyone tell me which is which? ???
Thanks


Title: Re: Bosch ignition coil terminal identification
Post by: HFStuart on March 09, 2014, 10:53:16 AM
15 is +ve
1 is -ve


Title: Re: Bosch ignition coil terminal identification
Post by: droptop on March 09, 2014, 11:01:16 AM
Thank you kindly.
That will simplify things, that and leaving the homemade immobiliser that was causing the intermittent spark failure disconnected!


Title: Re: Bosch ignition coil terminal identification
Post by: lukasdeopalenica on March 10, 2014, 09:25:30 AM
Usually 15 is a battery +
These markings come from DIN (Deutsches Institut für Normung) and there you can find more electric terminal markings:
http://en.wikipedia.org/wiki/DIN_72552 (http://en.wikipedia.org/wiki/DIN_72552)
In case of ignition coil it is supplied through an ignition switch