No starter operation engine will not crank over?

OK so I checked the starter and no load there is of course 0.00 resistance. While cranking the motor it was 0.02 of a drop. The lights do dim a little bit what I would consider normal. This might sound stupid but since I replaced the timing chain when replacing the head. Could the chain be to tight and causing it to not want to turn over at normal speeds? I can hand turn the crank with a wrench and I don't feel a difference from the past before I did any work on it. When changing a belt. I tested both points on the starter. The wire between the battery and cylinoide. I also tested the ignition wire, still no loss. Can I run a obd2 tester on it? Or would it even give me any kind of code? I know on the calibers you are supposed to be able to turn the key over 3 times and it just says "Done" where normally it reads the mileage. Should I be getting a code there? Thank you for all your help so far on this problem.

Turned key and nothing happened, no sound, had been sitting for 10 days

First thing check to see if the Battery is any good. Check to see if you have any lights coming on, such as headlight or dome light. Try charging it or replacing it. If you do have power to all accessories and no sound still, could be the starter cylinoid or the ignition switch.

Drove in my garage and now it will not turn over at all. Lights are good checked battery okay.

My car won't start - check the battery & change the starter. When I stick the key in the ignition turn it nothing happen. What could it be?

The car will not start but battery is fine, will not turn over but all electric items are working, is the starter bad?

The car will not crank over at all. Do you think the battery is low on juice? Thanks, Mike