I'm about to pull this head. Just letting some penetrating oil work on the exterior head bolts, or nuts in this case, for a bit as the last head I took off, I broke a bolt. While that simmers...I had a couple of questions.
Is there anything I should be careful about with this? I've only removed one head on a hydraulic machine in the past and it was more for exploratory reasons. During that procedure, one of the lifters came out. It was kind of stuck at the end of the push rod . I just popped it back in but the machine was not to be used again. While this head is off, should I be inspecting the lifters as well? Or should I do everything in my power to not disturb them?
Also, not sure if anyone had any thoughts on my question regarding the strange behavior during my leak down test. How the pressure jumped on the cylinder side when I went from about 50-60lbs on the compressor side. Just wondering if that's normal or strange. Or an indication of how I may be doing it incorrectly?