I recently picked up a Lapierre vertical double releaser for cheap as the previous owner had dropped it and broken some of the pieces. I don't need a double, so I took all the good pieces and turned it into a single, but I am having a few issues. The first being that the valve will switch one direction fine but gets hung up in the middle coming the other direction. I assume this is due to a bad seal around the actuator shaft?

https://drive.google.com/file/d/12lP...w?usp=drivesdk
https://drive.google.com/file/d/1AhG...w?usp=drivesdk


The second issue is that the valve doesn't seem to seal well between the upper plate and the lower plate. I am only getting about 10" vac unless I put a lot of downward pressure on the valve and then I can get it up to about 18". The pump will do 22". Is there supposed to be any sort of gasket that goes between the upper and lower sections besides the nylon plate?

https://drive.google.com/file/d/1ezy...w?usp=drivesdk