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MetalObsession 
AMC Fan 
Joined: Nov/09/2019 Location: 99577 Status: Offline Points: 3 |
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 Topic: msd integrationPosted: Nov/09/2019 at 10:24pm |
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Hey guys. First post as an AMC fan here so hopefully Im not fudgin it up. I looked around for stickies but couldn't find any for my question.
Anyway, My roomate and I are stumped on a small thing. His 1973 Jav 401 had a really hot coil and voltage regulator one day from a battery charger so I suggested to install an msd ignition and replace the coil. The problem is, the previous "mechanic" did an absurdly bad job wiring and Idk how to fix it. Does anyone have a wiring schematic and a tip on how to wire in the msd 6al? I'd like the tach to work and the car still has points. Thx everyone from AK
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Ramzilla
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Joined: Jan/28/2019 Location: arizona Status: Offline Points: 354 |
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Posted: Nov/10/2019 at 6:33pm |
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Just search Holly Web Site and you can download MSD installation instructions for all there products.
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SC Rambler
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Mopar_guy
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Joined: Jun/07/2009 Location: Ohio Status: Offline Points: 4837 |
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Posted: Nov/10/2019 at 6:51pm |
I would suggest getting a service manual (TSM in AMC speak) so you have the schematic for the car to start with. They sell color coded schematics on ebay as well. Installing a MSD is pretty easy but you usually have to put a diode in to keep the car from running with the ignition switch off. It's been covered on here a number of times so you can search for MSD in the electrical section which should get you results. You'll need a tach adapter to get the tach to work with MSD.
Edited by Mopar_guy - Nov/10/2019 at 6:53pm |
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MetalObsession
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Joined: Nov/09/2019 Location: 99577 Status: Offline Points: 3 |
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Posted: Nov/11/2019 at 2:29pm |
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K cool I’ll check for the schematic. I looked quite a bit through all the diagrams for 401 but most were mislabeled it seemed.
Msd is in and car runs. It shuts off when power is removed from msd so I don’t think I’ll need the diode for whatever reason. Ballast resistor for the tach? Thx
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PHAT69AMX
AMC Addicted
Joined: Jul/07/2007 Location: West Virginia Status: Offline Points: 5926 |
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Posted: Nov/11/2019 at 10:15pm |
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I made this schematic when I did it on a 1969 AMX.
MSD 6 Box, Delco Type AMC Distributor with UniLite Conversion, stock AMC in-dash tach. But, of the opinion this is for points or UniLite, unsure if same for 'Hal-Effect' distributor like DuraSpark  |
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AndyAnderson66
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Joined: Jul/27/2020 Location: Chicago Status: Offline Points: 2 |
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Posted: Jul/27/2020 at 8:28am |
The content is very valuable. It shows that you spent time researching this and you have managed to turn it into an incredible piece of valuable content. If you're interested in watching something about Jeeps, look here - https://jeepequipment.com/how-to/ It's something of a hobby of mine.
Edited by AndyAnderson66 - Jul/27/2020 at 8:34am |
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Joseph Lamb
AMC Apprentice 
Joined: Nov/15/2018 Location: tampa florida Status: Offline Points: 112 |
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Posted: May/12/2021 at 5:02pm |
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di you get the msd to work ???
Joe
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1971 Javelin 360 SST
1973 RS Z28 350 L82 4SPD 38 YEARS 1958 Chevy Biscayne 235 powerglide 1997 Jeep TJ 151 5 speed 1960 Lark Convertible |
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Joseph Lamb
AMC Apprentice
Joined: Nov/15/2018 Location: tampa florida Status: Offline Points: 112 |
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Posted: May/12/2021 at 5:05pm |
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I guess what I meant to ask you is if the MSD is working well or if you have had any failures with the 6al box ???
Joe
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1971 Javelin 360 SST
1973 RS Z28 350 L82 4SPD 38 YEARS 1958 Chevy Biscayne 235 powerglide 1997 Jeep TJ 151 5 speed 1960 Lark Convertible |
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MetalObsession wrote:
