cheesegrader 433 #1 Posted June 2, 2011 I have an annoying slow leak at the connection with the lift cylinder. I'm going to change the fluid and filter this weekend, and will take apart the joint. Does anyone know if the O-rings are 9/16 ID? I have some spares, but nothing smaller than 1/2. I'm also wondering if teflon tape on the threads is OK. Thanks Share this post Link to post Share on other sites
shorts 182 #2 Posted June 2, 2011 If the fitting uses an O-ring captured in a taper you should use a "hard" 90 durometer O-ring, available at Zatkoff.com my favorite supplier of specialty seals and packings. In my opinion teflon tape is from the stone age, it is difficult to install correctly and incorrectly installed the fibers or strands can cause problems in the hydraulic system. try either hydraulic loc n seal, a locktite type product or paste or liquid teflon on tapered pipe threads :hide: Share this post Link to post Share on other sites
cheesegrader 433 #3 Posted June 2, 2011 Thank you, Shorts. I had no idea that O-rings came in different hardnesses. I learn something here every day. Share this post Link to post Share on other sites
shorts 182 #4 Posted June 2, 2011 most generic o-rings are 60 durometer, and made of buna n material. if they are made of something else they are usually colored, tan,violet,,green,yellow,etc Share this post Link to post Share on other sites
