When the case was mounted to the fire wall it should have been grounded and I asked MSD that same question HE said it does need to be they like to see the case rubber mounted
What kind of charging sytem are you running the msd needs around 13.8 to 14.2 to work . we had a problem 69gs was doing the same thing put the 6al back in ran fine put the digital box in newer car no problem you may have a voltage problem causing your problem
According to the MSD literature, the MSD boxes are designed to output full power with supply voltages of 12-18 volts. The 6AL needs 1A/1000 RPM. The Digital6 requires .7A/1000 RPM. I think the most likely cause is some kind of electronic noise affecting the microprocessor like MSD Tech suggested. Wires, and/or plugs. Maybe there is something wrong with the circuit that protects against EMI
just a thought, isn't there a wire loop that needs to be cut to configure the msd box depending on what distributor you are using ?
Yes, I asked him about that in post #2 (magnetic compensation loop) It has to be cut for MSD distributors. Don't know if he dido No:
Yes it cut.......I'm going to a resistor plug see if that help not for a few week I had enough of it right know thanks guys
MSD also sells a shielded pickup harness to replace the stock one that I used to get rid of a high speed miss. Good insurance at any rate....... Bruce
That's what killed mine in my old Camaro. 3 month old battery with half it's cells dead. Now I have to send the box back to see if it can be fixed.
That's strange, the Digital6 requires only .7A/1000 RPM while the 6A(L) requires 1A/1000 RPM. In addition, all MSD boxes are designed to produce full output power with supply voltages of 10-18 volts.
What killed my Digital 6 was charging surge according to MSD. They say that the ignition power wire must be disconnected before charging since a surge can kill it esp. with older style chargers. I now use a Shumacher digital one that doesn't hit it as hard initially. No problem and I'm still not always disconnecting ign power lead before charging at the track.
I disagree with the post about pickup wire orientation NOT changing timing. When I had my first MSD distributor, it failed the magnetic pickup. I replaced it. It ran really bad, so much, I thought I had a new defective pickup. I then called the MSD tech line, didn't get much help, and came across Dave Ray, IgnitionMan. He got me straightened out. Both pickup wires are black, with tracers, and the connector has numbers on it. Black w/green stripe is connector 1 Black 1/orange stripe is connector 2 Reversing these wires moves the timing from its normal phasing, to about 35 degrees off-phase. Dave taught me an easy test for phasing. Check timing. Shut engine down and pull distributor cap, mark distributor for cylinder 1 wire inside cap. Rotate engine to the timing point, check to see if the rotor is aligned with the tab, or significantly off. Slightly off is OK with vacuum advance, 3/4 inch is way off. Also, Dave showed me that if you also reverse the magnet, the pickup gets out of phase as well. The pickup magnet has a line on one end, looks like it was put on with a marking pen. This end should be positioned at the coil end of the pickup for correct polarity. Having both the magnet and wires backwards doesn't make the pickup phase right, it just gets further out of phase. Also, digital MSD is far more sensitive on coils and wire types. Spiral core wires are mandatory to shield the ignition system against leaks, and there are coils Dave says are just not good, some are the red MSD Blaster II's and the Accel's. Hope this helps. Regards, Milton
The pickup wires are black/violet and black/orange. The connector from the box has violet and green wires. all you need to remember is not to connect violet to violet.
I gets weird now I went to the dyno today to work out some carb issue's the car runs great it as the the 6al box in it right now but the the computer for the dyno wouldn't work hooked up the my car when it was running the o2 senser was going crazy and the all the controls on the dyno would work............so i got some real bad RF noise from some where. I ran on that same dyno last year......and it was fine....we hooked up my freinds GN it work...o No:
