ka620'

Will do

Looking for some parts for my 73 620. Looking to get a cluster , z24 5 speed , cab height camper shell with windows , and chrome door mirrors. Thanks for looking , see you at the meet

If i knew what the voltage was supposed to be at each wire I would be able to trouble shoot it a little better. Is there any schematic showing what wires get voltage?

Yeah thats what ive got. Is the yellow wire supposed to give off any voltage ? I have 0 volts to it

Am i supposed to be getting ppwer to the yellow wire at L plug or just the white/blk wire?

I do have that white wire T'd off onto the white/red wire that goes to the power for alt. Where is that solid white supposed to be then ? Datzen mike- im not sure my dad did it a couple years back and just left it. Im sure he went down to autozone and got the one for a 620

So ive fixed the connection on my cluster and my charge light is consistent now. But now my charge light just stays on. Does this mean my alt has failed ? Im only seeing 12 volts at L terminal and its only one of the wires that gets voltage.

Forsure , my charge light is real inconsistent. Wether its my cluster or a connection inbetween im not sure , but do you know where the power is coming from so i can make my own charge light to see if i can get the alt going ?

Do we know what wires we should be getting voltage to ?

Ok so these alternators dont need an exciter to get going ? Ive rewired back to stock but the alternator just isnt coming online now

Took my dash out to see if the charge light was an exciter like i thought. Got a good bulb in there now and now the light stays on. So im guessing that light comes on when the alternator isnt charging..

So after re wiring to stock i noticed there were resisters inbetween two sets of wires, were these resisters put there to excite the alternator ? After re wiring back to stock the alternator stopped kicking. My only conclusion is that it doesnt have an exciter now. Is that what the charge light is for on the dash ? Or is that for a low battery ?

yeah , thats how it was wired. i guess it had an internally regulated alt on it before it was in my possession, and when it failed on me i got a new alt and voltage reg thinking it was externally regulated because the regulator was still in the bay. since i already have the new alt and voltage reg installed im just going to wire it back up for the stock externally regulated alt. I understand its better to run an internally regulated one but I'm swapping a ka in soon so I don't want to go out of my way for this motor.. and man my choke has ALWAYS been stuck on and I couldn't figure it out for the life of me. now I know what it was , I'm assuming going back to stock wiring will get rid of that ? thank you.

banzai , not sure why wires were cut , this truck is full of hacked up wiring. I figure ill just slowly but surly fix it all. The only wires that are hooked up to the harness side of the regulator pigtail is black(ground) and white.

awesome , thank you mike your the man. its an external regulated alt. I'm going to re wire voltage regulator according to schematic and see where that leaves me. Ill let you and the forum know how it goes.

is there any way for me to tell if its an internally regulated alt ?

Yeah the voltage regulator pigtail comin out of the harness only has 2/5 wires connected. 3 diked wires.. regulator looks to have been replaced already. Is there anywhere i can get a schematic ? Well im sure it was slowly killing my battery but i never noticed anything until i started getting popped fuses because of the aftermarket stereo and exposed wires , anyway previous owner tapped into the fuse block for that after market radio and it was on the same block as the alternator. So when it shorted , the fuse popped ,and the gauges went.. i didnt think much of it but little did i know my alternator circuit wasnt complete anymore. So i drove it around and completely drained the battery out before i relaized it was all connected. So i took out the stero and excess wires and the shorts stopped. I just got the new battery and here we are today..

Hey guys thanks for the replies , so after fixing my multi meter i fired up the 620 let it warm up and tested the voltage. I was getting about 16.5 at idle and just north of 17 at 1/4 throttle.. any ideas on what causes an alternator to overcharge the battery?

Whatsup guys i have a question that im hooing one of the gurus can help with. So mt 620 started shorting out causing the fuse that runs the alt to pop. I took out the after market radio (so many wires were touching the body it was pretty scary...anyway..) so after getting rid of the wires and fixing the short I just went ahead and got a new battery. After installing and starting it up i pulled the ground strap to see if it would run off the alt. It idles just fine but as soon as i try to rev her up she just chokes up and misfires. I hooked the ground strap back up and revved it up , she revved up perfectly not a single stutter. So I'm just stumped... Am i looking at a failing alt? Bad grounds ? Thank you for any input in advance!

Looking for a cab height camoer shell fir my 73 shortbed 620. Also looking for a 5 speed from the z24 .