should I have power at the I terminal(to the msd box) all the time with ign. on? Thanx
theres 3 ter. one is big main power ,other is trigger from sol, third is suppose to feed the coil or msd. the starter works ok . I'm trying to figure out why I have no power to the msd?wondering if power should be feed to msd with key on ,engine off
the boat is a 460 ford. the starter is as the pic shows . it has a sol.at the top of the bellhousing below the junction bar(for lack of proper term) & a sol on the starter.
The thing is ,it worked last yr wirded this way.I haven't changed any wiring.I agree that the msd diagrams (for a 6al,not what I have)show the red wire to the ignition.perhaps the box is just bad,it's obsolite like 15 yrs ago!
I think the answer to your original question is YES...At least on any msd I know of the key supplies power to the box to switch it on, and shuts off when power to the box is shut off. Where the box gets its power from doesn't matter-you can run a new wire from your ignition switch or any other 12 volt source to bypass all those solinoids- they may be the problem, not the box. Run a wire from the switch power directly to the wire from the box that goes to the I terminal and try it.should I have power at the I terminal(to the msd box) all the time with ign. on? Thanx
I have a diagram that mentions that part on the coil- I will upload it in a minuet-It is an obsolete part.no points. The pic shows ignition wire to the ford sol.I'm not sure were the igntionwire on my boat is going.I do know that the red lead from the msd box is goin to the "i" lead on the starter. thanks for the input .my question has been answered that the "i" lead seems to be the wrong source for the red lead to the box. does anyone have the diagram for this ancient msd 6450 box? I think I'm goin to start from the top on the wiring by putting some colored wires to it ( everything is blackst),lose the "i" terminal!!
There's also a red tab with a connection that stands off the + post of the blaster 2 coil .we don't know what it's is or why it's there.
Are you SURE your starter is wired this way??? I dont recall fords having a solinoid on the starter. What this diagram shows is the solinoid powering the solinoid on the starter, which is...odd. The first solinoid in that diagram can be left out if there is one on the starter.It's only acting as a relay for a low amperage wire...