I just redid the timing in my 92. Was having problems running the car. I talked about it here.
92-ka24de-stall-issue-t514954.html
Also here is a vid of the timing marks on a KA24DE. There is a mark on the under side of the idler sprocket that I did not show. But once you have the Lower chain on and correct, start the upper chain using the Idler sprocket mark, then 10 links over toward the intake is the next mark, then 7 links to the exhaust, then from the exhaust it will 7 more back to the idlerr aligning all marks.
If I upload the video right