Was having trouble in my 1949's T/C unit, so thought an overhaul was in order. Opened up the unit and found some bad o-rings, but also an old, brittle, cracked fluid filter. After looking how it went together, I got the propane torch out and released the two steel rings at each end.
Then I cleaned up the rings and cut a piece of bronze wire mesh (same stuff I've used to make gasoline filters in my sediment bowls).
There's about a 1/4" to 3/8" overlap in the mesh. The steel rings were reapplied, holding the ends of the mesh, but I needed a wire loosely wrapped around the center portion to keep in in place while soldering.
I used a propane torch at first with acid flux core solder:
But then switched to a Weller soldering gun with a flat soldering tip. The propane torch was too hot making the solder blotchy. The Weller flat tip was a big help smoothing it out.
The filter was about 1/32" too long, so it bent up the mesh a little to get it in, but think it an improvement over the previous one.
EDIT ADDED: Wire reinforcing mesh.
Added some galvanized hardware cloth (1/4" squares). Wire wheeled it down to just slightly shorter than the filter's overall length (6-7/16").
Then, wrapped it, rolled it and soldered it in place.
Can you tell which part has been repaired?
Fired it up and it works just fine (forgot to paint my hydraulic lines and pump,oops).
Last edited by Stanton on Tue Apr 30, 2013 10:42 am, edited 2 times in total.