So I cleaned all the small parts and put everything together again, the most difficult part was putting the rangefinder, lens plate and infinity locking lever, which has to be done at the same time
So first step its to setup the rangefinder at infinity and lock it with tape.
Then the three parts together, as I have only two hands, I remove the screws from the rangefinder and move it up left, leaving enough space to put inside the plate lens with the infinity locking lever.
One problem I had with the Contax IIIa (also disassembled) is the little spring for the infinity locking lever, if the spring its attached (Contax IIa) its fine, but its loose (Contax IIIa) several tries are needed and a lot of patience. On this last one I found out very helpful to screw the upper screw of the lens plate in order to keep in place the spring in the small groove of the infinity locking lever. With the Contax IIa was easier and the infinity locking lever is designed if you check the left part before the bending to help the spring goes inside. Amazing engineering over there...
I got a little problem, when I put back everything on the Contax IIa I found out the infinity locking lever was no working, I couldn't release it, so I dismounted it again, I saw nothing faulty and then I dismounted the Contax IIIa
And I discovered that the on Contax IIa were missing at least one spring from the shutter release button and the upper two screws from the front fascia. This was very important for this error, the fascia has an slot where the focusing wheel and the infinity locking lever are placed, if not properly placed, the infinity locking lever was stuck but one wheel from the rangefinder.
After screwing fine the front fascia the infinity locking lever works fine.
You may remember from the heads up section I was asking you about that sonnar lens if it was fake or not, well it results it genuine, made at 1941 with coating, digging on the net I found one expertise talking about this series of lenses made during the WWII with the famous T on them, it seems I have one of them
This Contax IIa as made in 1951 according to the records.
When I do the Contax IIIa I will continue posting, I need two screws for its front fascia...
Now I have to deal with the take up spool.
Thank you for watching...