Remove the coil wire from the distributor cap and position the terminal so it is approximately 12 from a good ground. Rats speed shop kauai hi.
How To Install An Msd 6a Digital Ignition Module On Your 1979
Msd ignition box problems. Disconnect the msd white wire from the distributor points or the ignition amplifier. Car still isnt firing though. A new box solved the problem. Make sure the ignition switch is in the off position. You can also perform this test by disconnecting the two prong lead from the msd distributor to the 6a box. This creates a magnetic field that builds strength thanks to the help of the iron core.
How to wire gm hei distributor to msd ignition box how to diy duration. Next day it will start or sometime later. So its not the first time but it seems ive got a box brand new from msd that doesnt work. The new box was purchased from summit. I disconnected it completely and so far cross my fingers the problem has gone away. It hick ups intermitantly like someone is quickly switching the ignition on and off.
Turn the ignition to the on position. After testing it it seems fine. In a typical factory style inductive ignition current from the battery flows through the thicker primary windings when the switching device points or magnetic pickups is closed. Occasionally it will not start altogether. Why the old box had no spark is beyond me. Msd explained in depth just how this occurs.
Took the old box that i thought was crap and hooked it up direct as well. If there is a spark between the coil wire and the engine then both the 6a box and the coil are working which means the problem lies with the ignition pickup in the distributor. I had it installed with an msd adaptor harness for the application. Tested it and voila got spark.
Gallery of Msd Ignition Box Problems
