 MSD 6A Failing?, How can you tell? |
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| Root_Werks |
 Sep 5 2023, 05:26 PM
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#1
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Village Idiot  Group: Members Posts: 8,319 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest 
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914-6 with CIS 2.7, Pertronix instead of points and MSD 6A box for the ignition.
Went for a drive Sunday and the 914 missed a few times, noted the tach jumped to 0, or tried to anyway. Checked connections, visually inspected what I could. Tried to drive again today, same thing. Not very often, but it'll cut out for a second, like a power loss to the coil or the MSD Box? Or is my MSD 6A failing? Anyone experience anything like this. Would sort of figure the 6A would either work or not work. (IMG:style_emoticons/default/confused24.gif) |
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| Justinp71 |
Sep 5 2023, 06:07 PM
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#2
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Senior Member Group: Members Posts: 1,583 Joined: 11-October 04 From: Sacramento, CA Member No.: 2,922 Region Association: None
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I have always heard they work or they don't. Interesting tach went to 0. Problem with the power to the 6al maybe? Maybe the ground on the box is getting corroded?
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| Root_Werks |
Sep 5 2023, 06:08 PM
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#3
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Village Idiot Group: Members Posts: 8,319 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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Fired it up, died, no restart.
Power to the MSD is good, shouldn't the orange wire go live when ignition is on? This would be the wire that goes to the coil. |
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| sixnotfour |
Sep 5 2023, 06:24 PM
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#4
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914 Wizard Group: Members Posts: 10,430 Joined: 12-September 04 From: Life Elevated..planet UT. Member No.: 2,744 Region Association: Rocky Mountains 
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My buddy Fred, Pertronics,,the plastic ring split ,,same symptoms..Then would not start ,,points back in runs good..
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| jim_hoyland |
Sep 5 2023, 07:59 PM
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#5
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Get that VIN ? Group: Members Posts: 9,292 Joined: 1-May 03 From: Sunset Beach, CA Member No.: 643 Region Association: Southern California
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There is an in-between. I went down this road.
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| Root_Werks |
Sep 6 2023, 08:39 AM
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#6
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Village Idiot Group: Members Posts: 8,319 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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QUOTE(sixnotfour @ Sep 5 2023, 05:24 PM)  My buddy Fred, Pertronics,,the plastic ring split ,,same symptoms..Then would not start ,,points back in runs good.. I think you may have nailed it Jeff. Little LED on my 6A says the box is functioning properly. I'll test the Pertronics today and report back. |
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| Root_Werks |
Sep 6 2023, 12:11 PM
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#7
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Village Idiot Group: Members Posts: 8,319 Joined: 25-May 04 From: About 5NM from Canada Member No.: 2,105 Region Association: Pacific Northwest
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QUOTE(Root_Werks @ Sep 6 2023, 07:39 AM) QUOTE(sixnotfour @ Sep 5 2023, 05:24 PM) My buddy Fred, Pertronics,,the plastic ring split ,,same symptoms..Then would not start ,,points back in runs good.. I think you may have nailed it Jeff. Little LED on my 6A says the box is functioning properly. I'll test the Pertronics today and report back. @sixnotfour Yup, was the Pertronics unit. Tested bad, have a new one in the trunk. 20 minutes to swap out. My big, round Charlie Brown head doesn't fit that well close to the dizzy. Took a few minutes to sort things out. I'll order another Pertronics and toss in the trunk as well as a set of points just in case. |
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