I installed my crower ns1 today and couldn't find anywhere a real instructions on installing the chain tensioner. I didn't know you could click it together to be smaller. Mine was extended out all the way I believe and I kept trying to stuff it in and thread on the cover plug. Ended up breaking the plastic. I ordered a new one from mini and will be here tomorrow buy was wondering if I could use jb weld plastic to fix the crack or if this had to seal perfectly tight on the metal strut. Least this way I can check out my new cam. Also excited to have a healthy motor my stock cam was so worn. My rockers all had lots of play and with the ns1 they are all tight. Here's my old nasty cam. Lots more messed up lobes but the journals were great and rockers had some visual marks but nothing to the touch. I am hoping this fixes my compression issue and restores my loss power. I finally found where my metal shavings been coming from. The cam is done, one lobe even had the tip missing!! Crazy!