Mag and tacks
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Mag and tacks

  1. #1
    Cantard 71hallett's Avatar
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    Default Mag and tacks

    Can I still use the - terminal on my coil to run the tack. Using the super mag III with external coil.
    Paul
    Last edited by 71hallett; 06-03-2008 at 12:51 PM.
    Quote Originally Posted by gn7 View Post
    It would be a balmy 85* in Steel's shop if he would move a little faster

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    Cantard 71hallett's Avatar
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    Gona try it I guess.
    Quote Originally Posted by gn7 View Post
    It would be a balmy 85* in Steel's shop if he would move a little faster

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    Village Idiot fc-Pilot's Avatar
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    I would say no being that the voltage is not constant like it is on a standard distributor.

    Paul

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    Distinguished Member David 519's Avatar
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    Call Autometer's tech line. I think their part # 9117 tach interface is what you need. I'm using one with an internal coil vertex, but the instructions also show how to use it with an external coil mag. I had trouble with the tach freaking out at high RPM due to solid core plug wires. I swapped to suppression wires and it seems to have fixed it. Won't know for sure until we can deck the throttle and see what it does at high RPM. Hope this helps and good luck.

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    Cantard 71hallett's Avatar
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    Autometer pn# 9118 for me. Thanks for the heads up!!
    Quote Originally Posted by gn7 View Post
    It would be a balmy 85* in Steel's shop if he would move a little faster

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    Cantard 71hallett's Avatar
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    Quote Originally Posted by David 519 View Post
    Call Autometer's tech line. I think their part # 9117 tach interface is what you need. I'm using one with an internal coil vertex, but the instructions also show how to use it with an external coil mag. I had trouble with the tach freaking out at high RPM due to solid core plug wires. I swapped to suppression wires and it seems to have fixed it. Won't know for sure until we can deck the throttle and see what it does at high RPM. Hope this helps and good luck.
    Well the 9118 doesnt work. How did you make out with yours?
    Quote Originally Posted by gn7 View Post
    It would be a balmy 85* in Steel's shop if he would move a little faster

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    Senior Member Morg's Avatar
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    Make sure you wire it exactly like they show in the directions, With the trigger wire & the ground trigger wire on each side of the mag kill switch.

  10. #8
    Distinguished Member David 519's Avatar
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    Quote Originally Posted by 71hallett View Post
    Well the 9118 doesnt work. How did you make out with yours?
    I started to buy the 9118 based on what the Summit on-line catalog said. I ended up calling Autometer before I ordered. They told me the catalog wasn't completely correct and to use the 9117. Call Autometer's tech and make sure, but the 9117 looks like it will work for both internal and external mags...
    We still haven't had a chance to run the boat all out and prove the tach works throughout the RPM range. We are scheduled to test soon, certainly before Bakersfield. Also we're trying to make CFW next week, but my work schedule is kinda insane right now so not sure we'll be able to work that out. Good luck.

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    Senior Member Bubbletop409's Avatar
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    Quote Originally Posted by David 519 View Post
    I started to buy the 9118 based on what the Summit on-line catalog said. I ended up calling Autometer before I ordered. They told me the catalog wasn't completely correct and to use the 9117. Call Autometer's tech and make sure, but the 9117 looks like it will work for both internal and external mags...
    We still haven't had a chance to run the boat all out and prove the tach works throughout the RPM range. We are scheduled to test soon, certainly before Bakersfield. Also we're trying to make CFW next week, but my work schedule is kinda insane right now so not sure we'll be able to work that out. Good luck.

    WORK! We don't need no stinking work. How's it goin David? Got all my alum. back from the anodizer, came out killer. Now I really need to get goin on a motor. Stop by and check it out when you get a chance, as allways up for a delta trip anytime.

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  12. #10
    Cantard 71hallett's Avatar
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    I wired it like the diagram but in the install notes it said may not work with solid core wires. Didnt say anything about that when I ordered it. The new converter is still cheaper than new wires sleves exc. so I guess I will have to try that.
    Quote Originally Posted by gn7 View Post
    It would be a balmy 85* in Steel's shop if he would move a little faster

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    Distinguished Member David 519's Avatar
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    Quote Originally Posted by 71hallett View Post
    I wired it like the diagram but in the install notes it said may not work with solid core wires. Didnt say anything about that when I ordered it. The new converter is still cheaper than new wires sleves exc. so I guess I will have to try that.
    Not sure if you got this worked out, but we had to change our wires. We originally had the solid core wires from Hunt. The tach worked OK at low RPM, but freaked out after about 3500-4000 RPM and then pegged 9000 RPM shorthly after. We switched to suppression wires and it seems to have fixed our issue up to about 5k RPM. Will have to wait until the boat is in the water to check any higher.
    Hope you get it figured out.

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    Cantard 71hallett's Avatar
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    I just ordered the box you have 9117 is it going to work or do I still need to change the wires?
    Quote Originally Posted by gn7 View Post
    It would be a balmy 85* in Steel's shop if he would move a little faster

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    Distinguished Member David 519's Avatar
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    Ours didn't work properly with solid core wires. We had to change them.. I'd try it with what you have and see what happens. Good luck, hope it works out for you.

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    Cantard 71hallett's Avatar
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    Quote Originally Posted by David 519 View Post
    Ours didn't work properly with solid core wires. We had to change them.. I'd try it with what you have and see what happens. Good luck, hope it works out for you.
    The one I have doesnt work either. lol Hope I dont turn into a mallory superstore before this is done.
    Quote Originally Posted by gn7 View Post
    It would be a balmy 85* in Steel's shop if he would move a little faster

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