The Rover-Landers of BC

I have a chev alternator on mine. It is the single wire self-exciting variety. (sounds bad, doesn't it?) The shop that did it suggested that a flat bracket is strongest so they suggested a dual pulley alternator. This fit well with a pretty generic bracket from an auto wrecker bolted to the top of the waterpump and the belt going over the outer pulley of the alternator, in a very straight path.

Is your belt mis-aligned, causing stress to the waterpump pulley, which in turn would stress the shaft, seal and bearings?

Dave

Good points Dave, it seems pretty certain that the problem is one of mis-alignment or the belt being to tight. I have a Delco on my 90 and haven't had any problems.
Bill

also make sure that you are not overtightening the belt, this will cause the waterpump bearings to fail prematurely... Don't know what to say about the broken brackets, try a differant location on the block to mount the bracket to change the angle?????

http://www.jpurnell.com/RR/repairs/DelcoAlternator.htm
has some on a rr motor, might help???