Jeep 12v vs 6v Condensers

On older gas powered farm machinery the condenser is the same. The main difference is in the charging system (alternator, generator, voltage regulator) starter, lights, and battery.

thanks very much for your help

A 12v condenser will be fine on a 6v system. If a condenser is specifically designed for 6v, it might not be safe to use with 12 volts.

thanks very much regards eugene

r u asking about condenser inside distributor ?

and i assumeits a wilys jeep

http://www.google.co.uk/search?q=willys+jeep&sourceid=ie7&rls=com.microsoft:en-gb:IE-SearchBox&ie=&oe=&rlz=1I7DKUK_en-GB&redir_esc=&ei=XOMJTIHOBZKi0gStx8xl

yes i am asking about the condenser inside the distributor and it is a willys jeep do you happen to have any information on this, regards Eugene...

the condenser is the same as far as i know on 12 and 6 but if ifnd different i will report back

try it if it doesnt work i was wrong, It wont cause any seriuos harm if i am wrong it simply wont run or will missfire

additional info

http://www.google.co.uk/search?q=ignition+condenser+for+12+volt+and+6+volt+igniton+systems&sourceid=ie7&rls=com.microsoft:en-gb:IE-SearchBox&ie=&oe=&rlz=1I7DKUK_en-GB&redir_esc=&ei=3LoKTInNFY_u0wSasMBb

thanks I'll give it a go

you could use the coil but you would need a resistor to drop 12 to 6 in some cars they use a 9 volt coil on 12 volt systems to increase the spark during start up to increase the spark and the when the ignition key is released the 12 volts goes via the resiter to avoid burning out the coil

http://www.willysjeepparts.com/Key_To_Willys_Jeep_Vehicles.htm

http://www.willys-mb.co.uk/jeep-for-sale.htm

http://www.jeeparts.co.uk/Jeeparts/home.php?cat=72

http://www.willysoverland.com/

http://www.willysoverland.com/index.php/search/results/27777a6a60ef76d633fdf9b214e1d886/

True its also there to snuff out the flash that would occur as the points open, Thus ensuring a quick disconection and thus a rapid collapse of the magnetic field

http://www.mgb-stuff.org.uk/ignitiontext.htm

http://www.familycar.com/classroom/ignition.htm

http://au.answers.yahoo.com/question/index?qid=20080803011923AAKIebG

http://autorepair.about.com/cs/generalinfo/a/aa052502a.htm

http://www.google.co.uk/search?q=purpose+of+condenser+in+igntion+system&sourceid=ie7&rls=com.microsoft:en-gb:IE-SearchBox&ie=&oe=&rlz=1I7DKUK_en-GB&redir_esc=&ei=zxsLTOOvMIyi0gSVz6Vq

http://www.familycar.com/store/?N=4294962077&Nr=OR(AND(make:,model:,year:1942),AND(universal:1))&Vi=4294962077&y=1942&Ntt=ignition condenser

The condenser, coil, and plug wires are a tuned system. If you're switching to 12 volts, get a 12v coil, or a 6 volt coil with dropping resistor (which is bypassed during cranking by tying the coil hot to the starter motor terminal (not the battery side)). Use the condenser recommended for the coil. If the condenser is not matched to the coil, the points will burn and pit on one side or the other. It won't really affect the spark. Why not just go to augmenting transistor ignition, and then you can stop worrying about the condenser. http://www.electronickits.com/kit/complete/Automotive/illustrated_assembly_manual_k2543.pdf

Nah, If you connect the Coil wire to the start terminal on the starter, the starter solenoide will get current from the coil when you let go of the ign. key!! Good idea and widely used but on the Willys starter solenoide you haven't got the extra terminal that you could connect to the coil to bridge out the resistor while the starter works, thus you could make this connection by using a relay...activated by current from the starter terminal.

If the negative side of the distributor points loses metal....the arc jumps from the negative to the + side; the capasitance of the capasitor is too low for your electrical system... or the other way round. Give more dope and I will give a better answer. Like ..is the Battery Negative earthed, are you changing to 12v system etc.

Jurie

re capaitance, 1.2 microfarad is the norm for 12 volt, don't remember the 6 volt one, maybe someone else does though.
Mitch the ex peugeot doctor.

For what it's worth,

If you put an over or under capacitance condenser in when you install new contact points by the time the metal transfer has taken place on the contacts requiring replacement, the rubbing block will have worn down to the point where the points require replacement anyway. We always changed the points and "condenser" at the same time and usually never had any problems. A valid point was presented when it was suggested to update the system to a transistorized system. Oh yes, I remember the days of the "point file", !

h

Just to put the humble condensers life into perspective, ive been a mechanic for about over 40 years, ( not just on cars but just about everything except aircraft) and ive only had to replace about 4 condensers,

Its a shame the rest of the car isnt as reliable.

Or fork lift trucks for that matter.

And food procesing machines

in emergency situations ive used the suppresor capacitors to get cars running by adding the suppresor to the circuit near the distributor.

i dare say if you had time and some fine foil and cling film insulator you coulod make one.

I will relate my experience on a 6 volt positive ground tractor system converted to 12 volts, negative ground.It was using the 6 volt coil with a ballast resistor in series with the coil.

New points and condensor.Started and ran fine, but within about 10 hours, the points were shot.Replaced points and condensor.Same thing happened again.Repeat every 10 hours or so.

Finally, I installed a condensor for a 12 volt,negative ground system,same brand tractor, later model.

Electrolytic Capacitors are polarized, and in this case, sensitive to polarity reversal.

No more problems with points pitting or failing.Been going for 5 years now, still runs fine.

You decide for yourself if it makes any difference.

FWIW:The positive ground system was originally used to help inhibit rusting, due to the positive charge on the chassis.

HTRN

Wrong way round as the English found out; Neg. charged chassis gets less rust.[Atoms "overcharged" with electrons repells? or rather lose atoms to other substances than to connect with it] simply put.

No vehicle I know of has ever had a electrolitic capasitor with the points. Analize the osilloscope pattern of the ign. system action to get light on the subject.

Simple rule:If neg. side of points loses metal, capasitance is too small; If positive side loses metal, capasitance is too high. Once you got the right cap, do not change it. Keep fibre and cam slightly greased and it lasts for 100 ooo km. [Cap of differant cars is between 1.8 to2.6 microfarad....but do test it yourself, they differ because of mass production!]

jurie

A long time ago there was a car company in the uk that built a lot of cars with posative earth and they all went rusty in record time, Suprise Suprise.

None left know, I wonder why ?

It was called Rover but no longer exists.

They had had some good ideas but a lot more of very Stupid ideas

The Quartic ( Square ) steering wheel on the Allegro

Is this a jeep/willis overland/civilian variety. I was in the NG/Army in 1965. The Jeeps provided to the NG were mostly Korean war left overs and had 24 volt systems. The reasoning for this voltage was to keep military vehicle electrical systems all the same voltage. Another was so that just in case the "General's" air craft needed to get a jump start, the aircraft voltage and the truck voltage would be the same. The aircraft voltage was a 24 volt system. Even as late as 2000, I had a friend who hunted with an ex military jeep. It too was a 24 volt system. I do not have any idea just how old it really was, only that it required two 12 volt batteries to run it.

TMF

Hi,

Since your system is a 6 volt one, you can use either 6V or 12V condenser. If your system was a 12 V one, and you use a 6V condenser, the chances are the condenser will explode.

No!!!!! The capasitor will NOT explode; If the capacitance is wrong for the system; [That is the voltage of the charging system, proximity of HT and low voltage wiring to each other, resistance of wiring and connections etc.] all that will happen is arcing across the contact points. Nobody can exactly determine what the capacitance of the condenser must be because all wiring, coil wiring resistance etc. will differ slightly because of mass production. On an ossiloscope one can see if there is arcing between the points!

Open condensers from both 6 and 12v systems and see if you find a difference.

Jurie sa