[John_G]

Victor,

In your 1st photo, just below where the throttle spring bracket is, there is a plug - looks to be about an inch in diameter, near the IP housing but in the back of the front cover. Remove that plug and align the pointer to the mark on the drive with the crank indicator and the specified number of degrees BTDC.

 

[John_G]

Yup, you got it. The pointer and timing scribe are on the back side of the gear in the third photo.

Now, I have never performed this timing operation on a DT466A like you have, only on the B and later models.