walsh
August 21st, 2006, 04:33 PM
I rebuilt a stock GT rear hub(black, GT 6061 is the only obvious marking.) This is the first time I've had to do this - I used to avoid gritty conditions, and I'm typically very easy on my equipment. I consider myself an experienced wrench, so I figured this would be routine. Once I extracted the old bearings, pressing the new ones wasn't a problem.
The non-drive side has a piece that serves like a cone: it's slotted for a cone wrench, it threads up against the non-drive side cartridge bearing, sets the bearing preload, and then the piece that contacts the dropout threads against it, locking in the preload.
The drive side, however, has a set of spacers to clear the freehub body, and then a single threaded piece which seems to both set the preload and contact the inside of the dropout. Nothing threads against it to hold a preload. Predictably, it tends to loosen up. There is play in the hub after a few minutes' riding. This never happened before I pulled the hub apart.
It seems like the axle spacing would be wrong if I lost a part. I tried setting the drive side of the axle with blue Loctite, and that didn't hold it. It just doesn't make sense. . .
Much beer awaits whomever can point out what I'm missing.
(PS: "Chuck it an buy DT/King hubs!!" is not considered a helpful answer. I know they're works of art. At the same time, these hubs are laced to Syncros rims that are dead true after many beatings, and have performed at a higher level than their rider for a while. And I'm too damned stubborn to just throw money at the problem.)
The non-drive side has a piece that serves like a cone: it's slotted for a cone wrench, it threads up against the non-drive side cartridge bearing, sets the bearing preload, and then the piece that contacts the dropout threads against it, locking in the preload.
The drive side, however, has a set of spacers to clear the freehub body, and then a single threaded piece which seems to both set the preload and contact the inside of the dropout. Nothing threads against it to hold a preload. Predictably, it tends to loosen up. There is play in the hub after a few minutes' riding. This never happened before I pulled the hub apart.
It seems like the axle spacing would be wrong if I lost a part. I tried setting the drive side of the axle with blue Loctite, and that didn't hold it. It just doesn't make sense. . .
Much beer awaits whomever can point out what I'm missing.
(PS: "Chuck it an buy DT/King hubs!!" is not considered a helpful answer. I know they're works of art. At the same time, these hubs are laced to Syncros rims that are dead true after many beatings, and have performed at a higher level than their rider for a while. And I'm too damned stubborn to just throw money at the problem.)