Racing Dan

Thats great, if you know how to take apart a 8 speed hub mechanism. However the dipping method is not something I invented. Its advised by Shimano, to avoid taking the mechanism apart i suspect. Of course Shimano recommends their own very expensive oil. I just use regular gear oil from the auto parts store. It worked fine and has restored the gear shifting to working order. YMMV .. :-)

le mans

Dunno what Shimano was thinking there, but once you think about it ..it's not enough for the bearings. unless one likes to dip it in oil "regularly"


Not completely pull it apart. Lemme see what's on Youtube..

Racing Dan

Thats great, but that will not solve the gear skipping issue. Solving that requires you either take the mechanism apart and grease the internal shifting mechanism or dip the whole thing in oil. Im not arguing oil dipping is better, just that you should think twice before taking the mechanism apart. You certainly can do that, but its not exactly level 1 wrenching.

le mans

I think there's something in that video though, perhaps dip it in oil will save you stripping it completely, long as you allow enough time for the excess oil to drain out, then grease the bearings

paulb_in_bkln

There's a website somewhere with pictures of a hub supposedly not maintained by its owner, the inside scored, rusted, damaged beyond repair. It made me so paranoid I took apart my five year old Inter-8, on a heavily used, in all weather, commuting bike. The hub was fine. No damage, no contamination, plenty of grease. Wasted energy. OTOH, it is important to stay on top of the cable and housing. Once those start to wear, the performance of the hub goes off the cliff. My experience, anyway.

paulb_in_bkln

Just another thought about the slipping and clunking with these hubs. I don't think it has anything to do with how powerful or heavy a rider you are. If everything inside the hub is engaged correctly, you'd tear the hub internals apart before it slipped. They're very strong. But this occurred almost from new with my low-normal Nexus Inter-8 (going on six years old) and I have never entirely solved it and it takes a lot of the fun out of using the bike. Shimano's white grease is very thin, so I don't believe that's an issue vs using oil. I have new cable housing and the ends are ground perfectly evenly, and the yellow marks are aligned. I keep my hand away from the twist shifter so as not to move it slightly (letting my hand rest on the shifter while riding definitely is a factor). Perhaps Shimano's quality control isn't perfect and some hubs come just inherently more prone to this. Whatever but I probably would not buy one of these again.

Racing Dan

The skipping is caused by the internal mechanism sticking. It can be mitigated by dipping in oil as shown in the videos. I have had this issue.