Two Questions

Minn-Tex Lee

Minn-Tex Lee

Senior Member
Well after 4 years I am only two parts short of trying to start her up.
1) What keeps the fuel lines from leaking? there does not appear to be any "upset" on the lines as there is on the hydrolic lines on the brakes.
2) Since I am going 12 volts I bought a coil advertised as 12 volt. When
it came it said "12 volt -use ony with external resister". I thought the resister was used to convert while using the 6 volt coil. What am I missing?
Thanks Lee
 
The gas lines when using stock configuration should have ferrules on them as mentioned above. If you're using aftermarket stuff you probably need to use double flare fittings. The coil you need is a Ford truck internally resisted version 67-78 or so. You can use the one you have but you will need a resistor set to the right ohms for your points and condensor. A resistor does just that, it takes the edge off the coil volts to a certain amount to keep a constant flow to the condensor and points to keep from burning them up prematurely. A converter or voltage drop is what takes 12 to 6. Congrats on being so close that's a great step in the project.


Tim
 
Look for a "ballast resistor", which is basically a ceramic block with a spade connector at both ends. Wire that inline with the + side of the coil.
 
The one and only fuel line that goes from the gas tank to the carburetor? I use hose clamps....with a see through filter in between. I have a 12 volt system and use the original 6 volt coil with a resistor, so i don't know what you have there.
 
Your coil needs an external resistor to drop its voltage to about 8 volts at the points for running condition, (in a modern car).

They usually run a wire from the starter motor to feed the full 12 volts to coil only while starter is spinning.

If you convert to 12 volts, and use that coil, you will be missing the starter motor wire on a model A.

If you use that coil without a resistor, you will burn points in minutes.

So, you need to buy a 12 volt coil that says USE WITH NO RESISTOR OR INTERNALLY RESISTED, or similar wording.

MGB's and other older makes use them.
 
the coil you have is not really 12v, it will burn up if not used with a resister, you can buy a coil that is internally resisted, condensors and points cant handle a full 12v, hence the resistors, only 8 or 9 volts get to the distributor, if you do use your coil get a ballist resistor, it lets 12v to the system to help when starting, then it slowly decreases the voltage as it warms up
 
When the gas line fittings are tightened the ferrule should lock itself to the gas line for a leak proof seal. As for the coil you will need a coil that is rated at 3.0 OHM, this will be a internally resisted coil,suitable for 12 volt use on a model A . I use the Pertronix flamethrower 40.000 volt coil for better performance. The style that I use is epoxy filled and looks and mounts like any replacement style coil for the model A and is suitable for points ignition.
 
Thanks for all the input. I have a resister on order and also the tank to firewall fuel line. Start up trial should be soon.
Lee
 
Your choice of getting a new after market fuel line is a good one. I put in both the inside and outside lines with new after market and they worked fine.
 
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