ChevyDarren,
Just an observation based on the pictures you posted.
There appears to be a big lack of lubricant (grease) inside of the unit which is essential to the vacuum movement of the paddle assembly.
Also, without more detail about what you did or didn't do with the piston seals (they need to be soft, pliable and lubed too to allow for sealing of the pistons themselves), it's hard to specify what needs more "doing".
On another note, what did you do about the torn gasket. If you didn't replace it (or at least seal it up to prevent vacuum leaks), that will hamper the operation of your vacuum motor too.
Suggestion: Do a web search for repairing and/or rebuilding "Trico" vacuum motors. There are several videos out there (not all Chevy specific but they will give you a good understanding of basics needed) to provide some direction on what may help with your problem.
Am sure that others will chime in here soon too with more suggestions and experiences.
Dan
Last edited by Gdads51; 02/27/2023 1:26 AM.
