Cita
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| posted on 21/9/05 at 05:46 PM |
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6 volt coil
Let me start by telling you guys that I know absolutely NOTHING about electrical stuff.
This is kind of complicated to me but I'm looking for a 6 volt coil (like the ones used on old Triumph,BSA etc...)
I've been told that I cannot use the coil of a 6 volt modern car/bike cause that coil is actually 15 volt .:
I need this "thing" to make a ignition package for an experiment I'm working on.
A small battery a 6 volt coil and a capacitor (?) is all I need (so I've been told).The guy who supposed to build this little item in a matter
of minutes(?) has backed off so here I stand in the middle of nowhere with my balls in my hand
Any advize is more than welcome.
Thanks Cita.
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chris_smith
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| posted on 21/9/05 at 05:55 PM |
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thought the ones on mgb gt's were 6 volt might be wrong have been before
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rusty nuts
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| posted on 21/9/05 at 06:01 PM |
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Early V W Beetles and split screen vans had 6v systems , suspect MGBs had something like a 9v coil
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Cita
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| posted on 21/9/05 at 06:39 PM |
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Dont ask me why but having a 6 volt system does not mean that the coil is 6 volt.
It was explained to me over the phone a few hours ago but it was like I was listening to the news on radio China.
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theconrodkid
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| posted on 21/9/05 at 06:55 PM |
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a 6 volt car will have a 6 volt coil (unless they esed ballast resistors)6 volt went out with early beetles,12v is the norm and they run on...wait for
it 12volts ,on points ignition sometimes they used a resistor and 9 volt coil,all electronic bar early chrysler (afaik) are 12 volt
who cares who wins
pass the pork pies
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britishtrident
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| posted on 21/9/05 at 07:00 PM |
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MGB were very definitely 12 volt (2x 6 volt batteries) except cold climate exports had 10volt coils +ballast.
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Cita
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| posted on 21/9/05 at 07:36 PM |
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quote:
Originally posted by theconrodkid
a 6 volt car will have a 6 volt coil (unless they esed ballast resistors)6 volt went out with early beetles,12v is the norm and they run on...wait for
it 12volts ,on points ignition sometimes they used a resistor and 9 volt coil,all electronic bar early chrysler (afaik) are 12 volt
I've been told that the 6 volt system of a bike ignition with points has a 15 volt coil so a 6 volt system has...wait for it not neccesarely a 6
volt coil 
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theconrodkid
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| posted on 21/9/05 at 08:40 PM |
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if the alternator/dynamo can only produce 6 volts,how can it provide 15 for a coil?
who cares who wins
pass the pork pies
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Cita
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| posted on 22/9/05 at 03:23 PM |
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Remember Conrodsky,i'm the guy with the questions,not the answer's
Seriously, I have no clue.
The reason Im asking for such a coil is that I have a modified single cilinder engine and the magneto is removed so I want to install a battery
operated ignition system.Since the engine will run for short periods only the saving in weigth is worth the hassle.
Now it seems that, aldo the system is 6 volt for example,the coil is something like 15 volt on a modern bike.Dont ask me why or how but....
Maby one of the experts onhere can shed a light on this.
Thanks,Cita
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theconrodkid
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| posted on 22/9/05 at 04:29 PM |
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for a 6v coil i would go to a VW place,they were prob the last people to use that system,posibly something like a honda 50 was 6 v,you then need a 6
volt battery?some points and a condenser
who cares who wins
pass the pork pies
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paulf
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| posted on 22/9/05 at 09:09 PM |
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Why not just use a 12v coil and a small 12 volt dryfit battery , small low amp hour 12v batterys are easily available as used in house alarms etc , or
a small 12v bike battery.
Paul
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Steve @ sVc
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| posted on 23/9/05 at 02:02 PM |
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Don't know what you are trying to do, but we have 6v coils at sVc.
Whilst we don’t generally specialise in high tension parts, I believe that many production cars had 6v ballast coils. The idea (if I remember) was
that the voltage drops when the starter is engaged, so to get a big fat spark to assist in easy starting, you had a 6v coil that was fed through a
resistor as soon as the engine started.
Perhaps someone out there can comment.
Regards
Steve @ sVc
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Cita
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| posted on 23/9/05 at 03:42 PM |
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I just try to get an battery ignition system that is easy to build for dumbo's like me
It's for a single cilinder 350 cc two stroker.
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MikeRJ
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| posted on 29/9/05 at 01:55 PM |
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quote:
Originally posted by Cita
Now it seems that, aldo the system is 6 volt for example,the coil is something like 15 volt on a modern bike.Dont ask me why or how but....
Maby one of the experts onhere can shed a light on this.
Thanks,Cita
Many small two stroke bike engines used a magneto style ignition system, i.e. the generator had a separate winding for the igntion coil, so it not
connected to the battery system at all.
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