Nikon S2 slow speed escapement not working

As I mentioned above, at some point I realized that how I pressed the shutter button impacted whether I got 1/30 or B style action

I think there's something out of kilter in the stem from the button to the slow speed escarpment trigger under the bottom plate - but beyond this intuition, I don't really know

gregorynikon said:
When i clean with ligher liquid the point under the shutter dial,camera worked.but the next day the problem return.I put a very small quantity sweing machine oil ,but nothing.When turn the camera upside down, vertical , front or the rear camera working but when i put on the base stop work. I think the speed mechanism is simmilar of leicas.Maybe someone help me to fix the problem?
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jerrybro said:
My S2 has been suffering from this for a while. I opened up the bottom and saw the stuff on the spring, but couldn't determine if it was gunk or corosion. Wht I did see was the screw at the top is an eccentric, turning it less than 1/8th of a turn relieved tension on the spring and the slow speeds returned.
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My silver dial S2 has the same issue, and a thorough cleaning of the parts described by Jon hasn't helped. Which eccentric screw is being referred to here?
 
Had the same issue with an S2 I picked up a couple weeks ago. On any of the slow speeds, when you press the shutter, as long as you hold the shutter button down, the shutter stayed open. When I released the shutter button, the shutter timed whatever it was set at, then closed (i.e. 1/30, 1/15, etc).

Kept firing the shutter for a couple days, shot a roll of film with only the higher shutter speeds, then eventually the shutter started working properly, IF I HELD THE CAMERA UPSIDE DOWN! It was bizarre. Worked great upside down, not at all right side up. After another day or two using it, started working properly if the camera was on it's side, either one, but would not work properly right side up. Finally, after about a week of use, it started working fine no matter what position the camera was held in.

I think for my S2, it was dried/gummy lubricants, and the fact the camera hadn't been used in many years.

Best,
-Tim
 
Ken Ford said:
My silver dial S2 has the same issue, and a thorough cleaning of the parts described by Jon hasn't helped. Which eccentric screw is being referred to here?
Click to expand...

Figured it out - it's the screw next to the right angle of the spring, next to item 2 in Jon's photo above. A very slight tweak of mine is all it took.

Now, I just need to find my pointy tweezers so I can try running lens paper on the back side of the RF prism without pulling the top plate. Where did I put them? Lol
 
probably too late for the party. in case you guys are curious, the retarder from an F should work with an S2 :eek::eek::eek: you need to replace the yoke of the escapement and its arm and the tang at the other end, thats all i suppose :rolleyes:

I will write a complete overhaul article in the coming year.
 
additional note. the thing (pawl) is part of a brake mechanism i think. one reason it can be obstructed is the baffle rubbing against the drum.:eek::eek::eek:
 
I have been cleaning and exercising the area shown in photo. Put in the lighter fluid. Everything works. 20 minutes later back to all slow speeds acting like 'B.' Let go of the release and the correct speed finishes cycling, but shutter stay open if I hold down release. Which way do you turn the eccentric screw? Any other ideas?
 
for something like that, i would clean everything properly and then adjust.

it is possible that the slow speed adjustment cylinder at the top of the slow speed shaft has gone out of adjustment.

at least in this camera, i found out that the adjustment of brakes is critical. there is an eccentric screw that has to be turned to adjust it.

the 1/4s problem was easily addressed by playing around with the retarder's position.

my speeds are all firing properly now but not quite accurate yet so i will have to adjust them later.

for this camera, the tension of the closing curtain is very important :eek::eek::eek: more important than the opening curtain
 
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