Alternator not charging

Charging system wiring, below.

Yes, that indicates the charging system is at fault.

Have you confirmed the crankpully is good?

There may be a problem with indicator lite or wiring. The info shows a resistor to bypass the lite incase the lite-bulb vibrates out socket, or goes out. Does the charge lite on the dash work?

I've seen diagrams like this before, with the bypass, generator would not charge unless lite was fixed.

The voltage regulator controls charging rate. It's bolted to the back of the alternator. If you look at it, you will see the four mounting bolts, and two more in between them. One might have a plastic cap on it. The other one is labeled "ground here to test. Let the engine idle, and ground that terminal. Watch the charging voltage at the battery and at the output wire. If they go up a bunch, say to 15 - 18 volts, the regulator is suspect.

Caradiodoc

Pully might look good but you need to confirm it is good. Looking does not confirm it is good as it can be deceptive.

Use marker to make a mark on outer ring of pulley an another near centeral ring and note if the outer ring moves away from the mark when engine is running.

" yes the light is on with key and runnin. Both wires are hot. And the voltage on all those questions is not running it is about 12.4 when you start it drops to about 10.6 and as it runs it drops"

One of your reply mentioned this. The drop to 10.6 vlots, whare was it measured, between battery post? Was the voltage between the alternator main post and ground tested?

Starter cable is not involved unless alternator main wire is joined from there.

The fuse is in the diagram, goes hot/voltage with key on. If fuse is ok, use voltage tester at fuse leg, where the fuse plugs in.

Either the alternator or pulley is bad.

Glad you got it going your way. Hope the fuse doesn't blow again? Maybe it was the old generator that caused it to blow?

The Orange/Light Blue wire should have battery voltage. With engine off, unplug the alternator and test the Orange/Light Blue wire. If voltage is not avaliable or not battery voltage, check the voltage at alternator fuse # 26 in engine compartment fuse and relay box.

If battery voltage is available, check for poor continuity between fuse and alternator.

Try applying battery voltage to Orange/Light Blue wire and test if charging is as desired.

Have both battery and alternator load tested-start here