cbjroms Posted June 20, 2020 Share Posted June 20, 2020 Getting ready to put my Herald 13/60 back on the road - it has been laid-up for past 5 years. Some time ago, (3 years+) I replaced the UJs and remember that the new joints came with long nipples which had to be removed after greasing. So each joint now has a small hole and I am wondering whether these holes need to be plugged. Rimmers do a Grease Nipple Plug (basically a grub screw) 1/4 x 3/8 but the holes in my joints look much smaller than this. So, firstly must I plug the holes and second does the same grub screw fit all Herald 13/60 UJs or are some metric? Quote Link to comment Share on other sites More sharing options...
RobPearce Posted June 20, 2020 Share Posted June 20, 2020 Yes, you must plug the grease holes. It's essential to keep the grease in and the road muck out. Not all UJs have a grease nipple hole but all the ones I've seen that do have a 1/4" or so thread. Remember that the thread size is measured on the outermost limit, so the female thread always looks a bit smaller. Quote Link to comment Share on other sites More sharing options...
cbjroms Posted June 21, 2020 Author Share Posted June 21, 2020 Just realised that the reason that the holes in my UJs appear smaller than expected is because I am looking at the allen key socket of the grub screws that I put in place 3+ years ago! Quote Link to comment Share on other sites More sharing options...
Bitumen Boy Posted June 22, 2020 Share Posted June 22, 2020 Been there, done that... 🤣 Quote Link to comment Share on other sites More sharing options...
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