bobcat engine removal 4

So after digging in, it turns out the motor needs to be rebuilt. I've torn into it and got the heads off to look at the cylinders. They are pretty bad as you can see. My friend doing the head work told me the injector pump might have worn out causing the damage. I have a service manual coming, but I don't know if there are instructions on how to tear down the pump. Do any of you have experience with this? bLntlT0G9KQ

Discuss this in the forum topic 743 Hydro leak.