Where is the tach sensor?

We need a tech forum.

Anyways DOes anyone know where the tach sensor goes? I thought I new but if it goes where I thought it does then I have the wrong sensor since it's too small for the hole.

Anyways. Big cam IV radranger 13speed

Anyone, Anyone?
It's not in my manual. I really need to get the cummins manual too.

 

check the back side of the rear head

 

um, I thought it ran off the flywheel

 

if i remember right it runs off the cam....but i could be very wrong as i havent worked on one of those motors in alot of years

 

Most of the engines I have worked on do not have any sensors on the flywheel. I would lean toward the cam myself.