Smog pump/alternator belt on 1976 Bronco

[pbets756]

I have a 1976 Bronco with original smog pump. Im trying to figure out belt location and sizes of the three belts. I can't find any diagrams anywhere. Mine has the original smog pump and I dont have the old belts. Im assuming that the smog pump and alternator is 1 belt in itself, meaning it doesn't go to the crank pulley or water pump. anyone have a diagram or picture with belt sizes for originally equipped 1976 302 with smog pump? thanks

 

[pbets756]

Here are a couple photos of the system. I ordered the 3 belts and 2 were correct but the third, alternator to smog pump (I assume) was way too long. For the life of me I can't find a diagram on here or anywhere on the web for that matter for the belt routing.

 

[Oldtimer]

It may of had a 3 sheave pulley on the water pump?
Is the 3rd belt long enough to reach pulleys on alternator, air pump, and water pump?

 

[pbets756]

it looks like it is "TC pump with power steering" on the 76 which is what I have. I did a simple measure of the length I thought I needed and it was around 26 inches Very helpful thank you. I didn't think Ford would have driven the pump from the alternator but the pump doesn't pull much at all.

 

[904Bronco]

My 77...

 

[DirtDonk]

I didn't think Ford would have driven the pump from the alternator but the pump doesn't pull much at all.

One belt from alternator to pump is the only way I’ve ever seen it on Fords.

 

[DirtDonk]

I’m having a hard time visualizing the different speeds of the different size pulleys being driven through different orientations.
I’m not sure you can have the pump belt routed around other pulleys.

 

[LUBr LuvR]

Here’s some original belts on a ‘76. Middle pic is from underneath the rig.

Let me know if you need any other views/angles.

 

[pbets756]

Thank you all very much. I took it all apart a long time ago and forgot how it all went. I took plenty of pics at the time but the computer died long ago as well. thanks

 

[spap]

That’s super clean, My 77 had a triple bottom pulley but it had ac

 

[pbets756]

Here’s some original belts on a ‘76. Middle pic is from underneath the rig.

Let me know if you need any other views/angles.
View attachment 950559 View attachment 950560 View attachment 950561

thanks Lubr, very helpful

 

[blade]

https://www.ford-trucks.com/forums/picture.php?albumid=18892&pictureid=96132

This image shows a truck setup , it's probably the same.