Case 721 loader misses

[wakenicky]

Have a case 721 wheel loader. It will run fine then start missing randomly. Have checked fuel issues and all seems to be ok. You can turn it off then it will run ok for awhile then miss again. Sometimes a hour later sometimes a day later. Will find out what motor it has and post back.

 

[NDIHC]

I don't know about case, but I do know that old Cat graders, like the #12s would start to randomly misfire after they warmed up if the valves were set too tight. My dad had to adjust the valves on his #12 every so often because they would lose clearance as they wore.

 

[casecollectorsc]

Injector?

 

[used red MN]

Missing?? There is definitely something “amiss” with the OP!