The tools required for tuning up these engines come in a kit and costs over $2000.00 in my part of the world. These tools must be used to get this engine synchronized, timed and set up properly.
If you have access to the tools that's great, a manual accompanies the kit. There is a learning curve with setting up the 3116 but do it once and you'll understand the concepts behind the injection system.
There are glitches with the 3116 are usually the same and I have posted them as they happened on this blog. The exhaust valves are weak and it seems like #5 exhaust valve is a weak spot. Keeping the valves set is a good practice and prevents a tight valve and overheating.
If you use the search box above you can get more details on tune ups and repairs. There are specific rebuild procedures covered as well.
Or you can check all the posts out here:
You might have to be more specific with your search i.e "cat 3116 oil pump"
You can always make a comment or ask a question and I will get back to you...