I put mine in the oven at 100C and it all came apart pretty easily. A heat gun used carefully works too. One trick it embarrassingly took me a few minutes to discover is that to get the main shaft out you need to push some of the gears fully back on the shaft so they will clear the lip at the top of the box.
I am changing mine over to closer ratio gears and am just about to reassemble it all after having replaced the gears and all the synchro balls and springs. The hole in the tin can method for replacing the synchro balls works well.
Simon
I am changing mine over to closer ratio gears and am just about to reassemble it all after having replaced the gears and all the synchro balls and springs. The hole in the tin can method for replacing the synchro balls works well.
Simon