Basic coil question

Beastmaster · Post by **Beastmaster** » Sun Jul 08, 2007 2:11 pm

Two wires going to the coil from loom
1/ 12v feed

2/output to tacho

yes or no?

The Original Tom · Post by **The Original Tom** » Sun Jul 08, 2007 2:14 pm

Vehicle?
But yes, one will be a 12v feed, switched by the ignition circuit. The other may be the tacho, and this should be fastened to the -ve side of the coil, along with the wire from the dizzy (points) or the connection from the ignition amplifier. If you;ve got electric ignition, it's likely the +ve supply for the amplifier will come from the coil too.

Beastmaster · Post by **Beastmaster** » Sun Jul 08, 2007 2:17 pm

Thanks tom,sorry its an rv8 into a sierra,the coil has the ign pack attatched and the white wires go to the dizzy

The Original Tom · Post by **The Original Tom** » Sun Jul 08, 2007 5:51 pm

Sorted

smokeonthewater · Post by **smokeonthewater** » Tue Jul 10, 2007 9:30 pm

Have you any ideas where I might find a wiring diagram for the ignition amplifier etc? Im fitting one (a RV8) into a boat at the moment, I got tthe engine etc of ebay and it has a missmatch of wires and stuff and im not sure were they go.

The Original Tom · Post by **The Original Tom** » Tue Jul 10, 2007 9:56 pm

Firstly how many wires come off the dizzy body? If it's just one then there's no need for an amp. Just connect it (black wire I think?) to the -ve side of the coil.
If there's 2:
Is the amp attached to the dizzy body or does it sit behind the coil?

Normally (a word to be taken with a pinch of salt when refering to RV8 electrics!) there's 2 wires coming from the dizzy to the ign amp (if separate from the dizzy body). These are both white and I don't think it matters which way around they're connected to the amplifier as it's just a magnetic inductance sensing circuit.
Plus 2 wires coming from the amp to connect to the coil. One connects to the low-tension (e.g the spade connectors) coil -ve and the other connects to the coil +ve.
OR
There's 2 wires coming from an amplifier mounted to the dizzy body. One is coil -ve and the other coil +ve.

I'm not sure about wire colours going from amp to coil, sorry.

P.S to I.D your dizzy - look here:
http://www.v8engines.com/electrics-1.ht ... electronic
Any problems ring them up and ask to speak to Ian - pretty much anything electrical with the RV8 he knows, at least that's my experience!

ChrisJC · Post by **ChrisJC** » Wed Jul 11, 2007 7:14 am

Wire colours are:
White - +12V ign feed
White / black - coil negative & tacho feed.

Chris.

Alley Kat · Post by **Alley Kat** » Wed Jul 11, 2007 7:14 am

Pretty sure my diz wires were orange and purple, or something similar and fairly exotic, going to the remote amp. the amp had 2 white wires coming from it but these were redundant in my carbed application. If I remember right, but pretty sure.