Re: [CR]now: Phil BB problems, was: Paramount Triple

(Example: Component Manufacturers:Campagnolo)

In-Reply-To: <094b01c39a64$dc7fdc80$6401a8c0@office>
References: <1a5.1afd087f.2ccaccec@aol.com> <a052106cebbbf2b033158@[66.167.252.130]>
Date: Fri, 24 Oct 2003 19:36:52 -0700
To: classicrendezvous@bikelist.org
From: "Jan Heine" <heine93@earthlink.net>
Subject: Re: [CR]now: Phil BB problems, was: Paramount Triple


Thanks for all who have responded. I suspect it is the sleeve moving - consider that on this tandem, the left side is pulled forward, the right backward.

On a BSC BB, it is hard to see how the two lockrings could move in opposing directions to let the whole cartridge move sideways! (I can see it on a Ital or FR BB.) Especially since on mine, the lockrings were extremely tight after the lateral movement had happened. I used a 20" long spanner and had to stand on it with my foot to get the first one loose. Seems like the torque was like that of a freewheel! And the lateral movement was considerable - like 5 mm or so.

I will contact Phil to ask them. It's nice to deal with a part where the maker is still around, for once. -- Jan Heine, Seattle Editor/Publisher Vintage Bicycle Quarterly http://www.mindspring.com/~heine/bikesite/bikesite/

You wrote:

There's a sleave on the axle that spaces the two bearings. It's supposed to be a very tight press fit, which should keep the axle from sliding. But if it's slightly too big, the axle could slide through the bearings.

Peter Jon White

and

Alternatively, the type with the aluminum spacer sleeve on the spindle could move. I think I remember that happening to me once, when the bike fell over. Since there is normally little lateral stress on the bb, I kicked it back into place, rode home, and glued the darn assembly together.

Your mileage may vary.

Harvey Sachs