Dead after new new alternator belt

[AdamandGreyson]

Yeah please post -anything would be super helpful, the alternator was put one previous to our purchase. Starter was done by my son and I. Clearly just used what was already there. Didnt know what was there was wrong! yeah that solenoid was there from previous owner as well!!

 

[Sad Sack]

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Does this look like it could be an issue?? Enough to make the truck completely dead??

Looks like an Allen wrench is being used in some fashion by the starter...what up with that?

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[Sad Sack]

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Post grounded out on that line that runs right behind it, the second photo is what I believe to be a fusible link, but asking because I am not 100% positive.

Whoa, grounded out on the fuel line, yikes.

 

[Turbo4whl]

Clocking a 10SI. Remove the screws holding the back half of the aluminum housing to the front half. The stator needs to stay with the back half, it is hard wired to the rectifier. If you start to pull it apart and the stator (metal) between the to halfs sticks to the front, pry it out of the front half with a small screwdriver.

The rotor brushes will pop out of the holder, keep track of the two brush springs that can fly out. Make sure no rear roller bearing stick to the rotor, if any do put a little grease on them and put them back in the bearing.

Next reset the brushes, spring in, then the brush making sure the bush wire goes in the slot of the brush holder. To hold the brushes in place, there is a small hole in the back of the case. Starting with the rear brush, slide a clean thin nail or cotter pin in, push in the other brush and slide the pin past that, now holding both brushes. A clean plastic spray can nozzle works well to hold the brushes too. Reassemble screws and pull out your temporary brush holder.

 

[bucket]

Looks like an Allen wrench is being used in some fashion by the starter...what up with that?

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"Oh! So THAT'S where that went!"

 

[HotWheelsBurban]

Clocking a 10SI. Remove the screws holding the back half of the aluminum housing to the front half. The stator needs to stay with the back half, it is hard wired to the rectifier. If you start to pull it apart and the stator (metal) between the to halfs sticks to the front, pry it out of the front half with a small screwdriver.

The rotor brushes will pop out of the holder, keep track of the two brush springs that can fly out. Make sure no rear roller bearing stick to the rotor, if any do put a little grease on them and put them back in the bearing.

Next reset the brushes, spring in, then the brush making sure the bush wire goes in the slot of the brush holder. To hold the brushes in place, there is a small hole in the back of the case. Starting with the rear brush, slide a clean thin nail or cotter pin in, push in the other brush and slide the pin past that, now holding both brushes. A clean plastic spray can nozzle works well to hold the brushes too. Reassemble screws and pull out your temporary brush holder.

Yup I have done this a few times "back in the day".
Dad showed me how to do the basic tune up on the 10SI internal reg alternator/generator/Delcotron.
Most of the time, what goes out on them is the diode trio; replace that, the regulator and the brushes and holder, put a little bit of fresh grease in the end frame (rear bearing cup), bolt er back together and you're good....just remember to pull the brush stick out!