K321 head off, picture of piston and valves

Hi folks I ran out of daylight and didn't get a chance to pull the valves to have a closer look. I did manage a few pics and am hoping some folks here could have a look and suggest/comment on what the picture reveals about what all may be needed. My plan was to do a leak down test but I couldn't find TDC (even though it's suppose to be marked on the flywheel) With the head off you would think it's easy to find TDC but there are 2 positions where it appears either could be TDC. Could anyone offer advice on which is which ?

Thanks

Attached Images

• k321 pisto 2.jpg (131.5 KB)


• k321 piston 1.jpg (104.5 KB)