6 volt to 12

i change over 800 ford to 12 volt run 2 day no no go i have power to both side of coil

you should have power to both sides of coil when points are open.there should not show power when points are closed.i think your points are not closing right or are bad and not making contact

When you made the convertion did you change the coil to a 12 volt model of either internal resistor or external resistor. If you used the external type did you also install the resistor. If not the extra current a 12 volt bring has burnt up the points. Replace the point and be sure you have the correct coil and accessories if needed and you should not have any futher problems.

Kent

i have power to both side of coil no spark to plugs change the condense and the points no spark to plugs

yes change the coil to 12 volt yes on rwe change the point and conderser eseter it run good for 2 day now nothing

Did you set the point gap correctly? The rubbing block must be on the high point of the cam lobe (points open at their maximum)when setting the gap. Clean the points with some lacquer thinner or other non-residue liquid and then run a clean dollar bill through with the points closed.

use some sandpaper or emory cloth between the points to clean them,also be sure the points are closing

I hope you did as posted below and EITHER changed to a full true 12 volt coil (no external ballast resistor required) OR ELSE if you used a 6 volt coil you added an external series voltage dropping (12 to 6) Ballast Resistor after the ignition switch ahead/before the coil????? Otherwise you may have damaged something

Normally the points are closed (unless a firing piston is at TDC) soooooooo with the ignition ON there should be voltage on the coils input (NOT to distributor) BUT NO VOLTAGE ON THE COILS TO DISTRIBUTOR OUTPUT because the closed points should have that terminal to frame ground (via closed ignition points)

If alls well a test lamp on the coils output (or distributor input) should flash ON (points open) and OFF (points closed) as the engine is slowly cranked over.

Id insure the points are not all burned or corroded (file or replace as needed) and are indeed fully closing when not on a high cam lobe cuz when they are closed there shouldnt be any voltage with respect to frame ground on the coil output (wire to distributor)

If you need my complete troubleshooting procedure for non sparking let me know

John T

Ok.. 12v conversion, and a true 12v coil, and you have power to both sides of the coil.. sounds like points are open or burnt.

you sure that was a real 12v coil? what # / where did you get it.. etc.

soundguy