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> MSD Ignition 6A USE Adapter 8920, wich adapter so use 8910 or 8920
jc914
post Mar 14 2009, 02:46 PM
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I just Installed a MSD 6a WHAT A difference 100% (IMG:style_emoticons/default/aktion035.gif) (IMG:style_emoticons/default/driving.gif) (IMG:style_emoticons/default/biggrin.gif)
Now my tach will not work. I have searched the forum for what I need to do. I have found no real answer some use the MSD adapter 8910 others the 8920.
I have a 73 fuel injected 2.0 with pertronix. According to MSD the 914 (mine) the tach wire used to go to the Negative of the bosch coil and it is called a Voltage Trigger and says to use the 8910. I have read others using the 8920 with no problem. below are two diagrams I found. Which is the correct one to use



8920
(IMG:http://i176.photobucket.com/albums/w177/JCD404/tach.jpg)


8910
(IMG:http://i176.photobucket.com/albums/w177/JCD404/tach3.jpg)
THANKS

I found this on line about the 8920
http://www.msdignition.com/forum/archive/i...php?t-8649.html
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reese5997
post Jan 20 2013, 08:11 AM
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Hello,

I just installed my MSD 6A and I cannot get the engine to run. It will only crank. I used the diagram above for the 8920 tach adapter. I unplugged everything and connected the original set up and it runs, so everything works. Any suggestions as to what I am doing wrong?


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jc914   MSD Ignition 6A USE Adapter 8920   Mar 14 2009, 02:46 PM
jasons   I made the 8920 diagram and that post on MSD's...   Mar 14 2009, 04:39 PM
904svo   If you can't get it to work with either MSD ad...   Mar 14 2009, 05:11 PM
jc914   Thanks for the information I just came across thi...   Mar 14 2009, 07:07 PM
watsonrx13   Here's my posting when I finally got it to wor...   Mar 15 2009, 03:42 AM
Aaron Cox   I dont think you need an adapter.... The dizzy te...   Mar 15 2009, 05:02 PM
ArtechnikA   The dizzy tells the BOX when to fire the coil rig...   Mar 17 2009, 04:51 AM
jc914   Thanks Aaron I am going to try what you said. If ...   Mar 15 2009, 05:14 PM
Kirmizi   Ditto what Aaron said. I've got a Unilite and ...   Mar 15 2009, 11:33 PM
904svo   VDO tach's require at lease 125 volt voltage s...   Mar 17 2009, 07:07 AM
jc914   I just got the MSD adapter 8920 it cast me $7...   Mar 19 2009, 07:37 PM
jc914   :trophy: :beer2: :mueba: :headbanger: :driving...   Mar 21 2009, 10:25 AM
reese5997   Hello, I just installed my MSD 6A and I cannot ge...   Jan 20 2013, 08:11 AM
reese5997   Correction 8910*   Jan 20 2013, 08:28 AM
larryM   i've been running a 6A with 8910 for 15 yrs, ...   Jan 20 2013, 11:57 AM
ConeDodger   I've got an 8910 new in box sitting on the gar...   Jan 20 2013, 12:10 PM
cgnj   I've got an 8910 new in box sitting on the ga...   Jan 20 2013, 08:39 PM
Kirmizi   I suppose my first question would be, are you sure...   Jan 20 2013, 01:04 PM
reese5997   I suppose my first question would be, are you sur...   Jan 20 2013, 05:32 PM
Gint   :agree: Where did you get the MSD box? Used? Yo...   Jan 20 2013, 01:36 PM
Kirmizi   :trophy: Glad to hear it was something simple...   Jan 20 2013, 05:43 PM
reese5997   lol, me too. Thanks   Jan 21 2013, 07:51 AM


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