Thunderbolt IV trigger voltage question
 

What voltage should the Thunderbolt IV module supply the distributor? I am getting about 4 VDC, and the trigger is not switching when I turn it.

Found this out because I was getting no spark anywhere...

Thanks

Re: Thunderbolt IV trigger voltage question
 

Distributor is shot...

wht/red terminal to gnd, 15 Ohm.

wht/red wire on terminal, 4V

wht/red wire off terminal, 12V

wht/green wire to gnd, coil sparks like crazy.

Oh well, a shiny new MSD is in my future...

Re: Thunderbolt IV trigger voltage question
 

all you really need is a pick up, merc has a modified sealed p/u if I remember right under 100.oo

or as you said great excuse to get MSD

Re: Thunderbolt IV trigger voltage question
 

There is a little slop in the bushing, and 2 cap screws are busted off in the base.

I have spent enough on this d&mn thing that the pickup is tempting, but...

Re: Thunderbolt IV trigger voltage question
 

I would just get another merc distributor. It comes complete for about $240. MSD's are good for high HP stuff, but are way more problematic.

Re: Thunderbolt IV trigger voltage question
 

have to agree,


I bronze bushing has slop in it replace the dist