Not getting 12 volts to coil
There is a sock filter in the fuel tank. It's large enough to cause little resistance unless it gets clogged up.
The in-line filter should be where the factory installed.
While you can use the illustrated hook up to test either in Run or Start, the result from Start will likely differ.
The booklet says less than 0.4 V in Run.
Your hookup is correct for directly measuring voltage drop.
I agree with you that the illustration does not show the hook up for direct measurement of voltage drop.
It shows the hook up if you were to make two measurements and compare them.
With key in run and points closed the first measurement would be across the battery (not illustrated)
Then a measurement of the voltage at the ignition wire as illustrated.
That's the first method described.
You're hooked up as described in the second method (highlighted)
This second method of measuring voltage drop is illustrated in the Charging Circuit MTSC from earlier in 1969
This is the same test method but applied to the circuit feeding the alternator's rotor. In this case, the coil is disconnected.
With the key in run, voltage drop to the alternator should be less than .55 V on the output side of the regulator.
Before doing either of those, make sure the battery is OK and fully charged.
If you have no other way to check, use the test in the ignition book
Perhaps we can clarify the current path during this test by showing the ignition start wire instead of the ignition run wire
Only if really really required put a filter in the line befoer the pump.
There is a sock filter in the fuel tank. It's large enough to cause little resistance unless it gets clogged up.
The in-line filter should be where the factory installed.
While you can use the illustrated hook up to test either in Run or Start, the result from Start will likely differ.
The booklet says less than 0.4 V in Run.
Your hookup is correct for directly measuring voltage drop.
I agree with you that the illustration does not show the hook up for direct measurement of voltage drop.
It shows the hook up if you were to make two measurements and compare them.
With key in run and points closed the first measurement would be across the battery (not illustrated)
Then a measurement of the voltage at the ignition wire as illustrated.
That's the first method described.
You're hooked up as described in the second method (highlighted)
This second method of measuring voltage drop is illustrated in the Charging Circuit MTSC from earlier in 1969
This is the same test method but applied to the circuit feeding the alternator's rotor. In this case, the coil is disconnected.
With the key in run, voltage drop to the alternator should be less than .55 V on the output side of the regulator.
Before doing either of those, make sure the battery is OK and fully charged.
If you have no other way to check, use the test in the ignition book
Perhaps we can clarify the current path during this test by showing the ignition start wire instead of the ignition run wire
