Hello
My schock are also in parts now , I order new gaskets, and waiting for them.
For the reservoir ,I find a small O ring that fit, but will maybe use a tread sealand . I also change the small ring of the adjusting screw .
The schocks were full of a sort of mud and smell ricin oil.
I think cleaning them without opening them would be fast impossible.
Removing the arm is not easy, and need to be heat very hot.
Thank you all for your help!
We know more about this schocks now
Sylvain