Hi Wim, Carefully check that rail for splits in the brass. If it is you will need to solder in a new rail. Replacing the dowel is possible but driving out the old and in the new is not as easy as you might think. Sometimes those things are in so tight they will not move and pieces pulled out buy the screws will interfere with the dowel movement. I found replacing the rail much easier. Here orientation and alignment is critical. Pre-drill and pre-thread the holes on the drill press before mounting the rail, this helps a lot in getting it straight. Get a 250 or 500 watt soldering iron or s small torch that is easily controlled for heat and location. I cut the old rail out close to the brackets, push out the dowel and use the heat on the brass only and heat it until it can be pulled out. This does not distort the solder in the hole. The new one slips in and is easy to align. Think it through, prepare the rail and tools and the rest is straight forward. Lots of luck. Newton
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