coil testing

[KEVINABR]

Hi can anyone tell me how to test my coil,im not to get with electrics not sure if theres any current coming thro ????? probably something simple

[dr deuce]

If you have an ohm meter, you can measure the resistance from each terminal to the other and from the high voltage terminal to one of the small terminals.

I am not sure what the resistance will be, but there should be a relatively low resistance on the terminals and a relatively high resistance on the HV output.

[LITTLEWOOD]

Assuming the coil is still on the truck - have you tried pulling one of the HT leads off and attaching a spark plug to it, turn the engine and hold the plug next to the cylinder head, if you dont get a spark and your condenser, points and HT lead are good them your coil maybe bad. I had the same problem recently and had to replace the coil.

[jakub]

primary circuit 1,5 ohm (for 6V instalation)
secondary circuit 8,5 kohm

[dr deuce]

simple calculation (not sure it is valid)

850 ohms divided by 1.5 ohms = 5666 X 6 = 34000 volts

Seems about right